A strong small motorcycle battery matches your bike’s original case size and terminal layout while providing enough cranking power for dependable starts. For many compact applications, the ExpertPower YTX4L-BS stands out with a 12V, 4Ah capacity and 120 CCA in a YTX4L-BS replacement format. This roundup compares ten sealed AGM or SLA options, from 2Ah tab-terminal batteries to larger 7Ah models, so you can narrow the choice by dimensions, battery family, and starting output.
Check your owner’s manual or existing battery before ordering: a battery with more capacity is not automatically a compatible replacement. The products differ in size, polarity information, and fit claims, and several are intended for scooters, ATVs, or other powersports vehicles as well as motorcycles.
The ExpertPower YTX4L-BS is the leading choice for a small motorcycle battery when your bike takes a YTX4L-BS-format replacement. It combines a compact 4.45 × 2.76 × 3.39-inch case with 4Ah capacity and 120 CCA, exceeding the listed 3Ah and 50–70 CCA figures of several other YTX4L options. Confirm that your motorcycle accepts this case size and terminal arrangement before buying; the product data identifies it as a replacement for YT4L, GTX4L, and GT4L models.
Our Top Picks
Best OverallIts YTX4L-BS replacement format measures 4.45 × 2.76 × 3.39 inches and pairs 4Ah capacity with 120 CCA.
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Higher CrankingThis compact YTX4L-BS battery lists 70 CCA, 3.5-pound weight, and dimensions of 4.49 × 2.80 × 3.35 inches.
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Longer WarrantyThe YTX4L-BS-format battery offers 3Ah, 50 CCA, and a 15-month warranty, with listed compatibility for motorcycles and scooters.
View on Amazon- Narrowest Case Pirate Battery YTX4B-BS
Compare These Small Motorcycle Battery Options
| # | Product | Dimensions | Battery Capacity | Voltage | Buy |
|---|---|---|---|---|---|
| 1 | 1. ExpertPower YTX4L-BSBest Overall | 2.76"D x 4.45"W x 3.39"H | 4 amp hours | 12 V | View on Amazon |
| 2 | 2. Daakmax YTX4L-BSHigher Cranking | 2.8"D x 4.49"W x 3.35"H | — | 12 V | View on Amazon |
| 3 | 3. UPLUS EB4-3Longer Warranty | 2.76"D x 4.45"W x 3.35"H | — | 12 V | View on Amazon |
| 4 |  4. Mighty Max YTX4L-BSCompact scooter replacement | 4.4"D x 2.75"W x 3.42"H | 3 amp hours | 12 V | View on Amazon |
| 5 |  5. Goodyear GYTX4LFlexible-mount 4Ah battery | 4.4"D x 2.7"W x 3.4"H | 4 amp hours | 12 V | View on Amazon |
| 6 |  6. Pirate Battery YTX4B-BSNarrowest Case | 4.45"D x 1.54"W x 3.43"H | — | 12 V | View on Amazon |
| 7 |  7. Battanux YT4B-BSSlim YT4B-BS replacement | — | — | 12 | View on Amazon |
| 8 |  8. Mighty Max YTX5L-BS4Ah Mighty Max replacement | 4.4"D x 2.75"W x 4.25"H | 4 amp hours | 12 V | View on Amazon |
| 9 |  9. ExpertPower YTX7A-BSHigh-output powersports battery | 3.43"D x 5.91"W x 3.7"H | 7 amp hours | 12 V | View on Amazon |
| 10 |  10. Mighty Max YTX7L-BSHigher-capacity Mighty Max fit | 4.4"D x 2.75"W x 5.19"H | 6 amp hours | 12 V | View on Amazon |
Detailed Reviews: Best Small Battery For Motorcycle
#1 · Best Overall
1. ExpertPower YTX4L-BS
- Dimensions: 2.76"D x 4.45"W x 3.39"H
- Battery Capacity: 4 amp hours
- Voltage: 12 V
Best for: High-CCA compact replacement.
Why it ranks #1: Its YTX4L-BS replacement format measures 4.45 × 2.76 × 3.39 inches and pairs 4Ah capacity with 120 CCA.
With 120 CCA and 4Ah in a YTX4L-BS format, this ExpertPower battery offers a higher stated capacity and cranking rating than standard 3Ah units. Its listed direct replacement fit covers YT4L, GTX4L, and GT4L models, making those cross-references useful starting points for a small powersports battery swap.
The 4Ah capacity is specified as higher than standard 3Ah units, while the 120 CCA rating supports buyers prioritizing starting output in cold-start conditions. Its 4.45-by-2.76-by-3.39-inch dimensions help with compartment checks, and the YTX4L-BS direct OEM swap listing names YT4L, GTX4L, and GT4L replacements. Compatibility also includes ATVs, street-cruiser and touring motorcycles, and scooters. The sealed AGM format keeps the battery rechargeable without conventional liquid-electrolyte maintenance.
- 12V, 4Ah capacity
- 120 CCA rating
- Direct OEM swap listed for YT4L, GTX4L, and GT4L
- Compatible vehicle types include motorcycles, scooters, and ATVs
- No terminal polarity or included mounting hardware is specified in the supplied details.
Skip it if you need the 7Ah capacity listed for the ExpertPower YTX7A-BS rather than this battery's 4Ah.
Pick this for a compatible YTX4L-BS-size motorcycle, scooter, ATV, or dirt bike where 4Ah and 120 CCA suit the application. Its named cross-references help narrow fit, but the supplied details do not state terminal polarity.
Full product details
| Brand | ExpertPower |
|---|---|
| Battery Capacity | 4 amp_hours |
| Compatible with Vehicle Type | ATV, street-cruiser-motorcycles, street-motor-scooters, street-touring-motorcycles |
| Included Components | BLDMYB12_4 |
| Dimensions | 2.76"D x 4.45"W x 3.39"H |
| Item Weight | 2.9 pounds |
| Manufacturer | ExpertPower |
| Part Number | BLMMYB12_3 |
| Manufacturer Warranty Description | 1 year |
| Model Number | YTX4L-BS |
| Size | YTX4L-BS |
| Voltage | 12 volts |
| Additional Information | Important information Safety Information DOT Certified |
Listed on Amazon as: ExpertPower YTX4L-BS AGM Motorcycle Battery 12V 4Ah High Capacity 120 CCA
View on Amazon#2 · Higher Cranking
2. Daakmax YTX4L-BS
- Dimensions: 2.8"D x 4.49"W x 3.35"H
- Voltage: 12 V
Best for: Compact 70-CCA AGM option.
Why it ranks #2: This compact YTX4L-BS battery lists 70 CCA, 3.5-pound weight, and dimensions of 4.49 × 2.80 × 3.35 inches.
A 70 CCA rating in a 12V, 3Ah YTX4L-BS battery gives this Daakmax option a stated cranking figure above many 50 CCA small-battery listings. Its 4.49-by-2.80-by-3.35-inch case and standard negative-left, positive-right terminal layout help make a replacement comparison concrete before installation.
The sealed AGM construction is maintenance-free and is described as spill-proof, with a slower discharge rate than conventional batteries; that combination reduces routine upkeep for a compatible motorcycle, scooter, or ATV. Its 70 CCA figure and 3Ah capacity let buyers compare output with the application’s requirements, while the listed dimensions and terminal layout support a physical check. The product also lists personal watercraft, snowmobile, and UTV compatibility, but exact compartment and polarity matching still matters.
- 12V, 3Ah capacity with 70 CCA
- Sealed, maintenance-free AGM construction
- Spill-proof design with slower discharge than conventional batteries
- Dimensions and terminal layout are specified
- Capacity is 3Ah, limiting it versus listed 4Ah alternatives.
Skip it if you need 4Ah capacity; the Goodyear GYTX4L lists 4Ah in a similarly compact case.
Consider it for a compatible small motorcycle, scooter, or ATV needing a sealed 3Ah battery with 70 CCA and specified terminal orientation. Its case remains compact, but buyers prioritizing capacity over 3Ah should look at a listed 4Ah alternative.
Full product details
| Brand | Daakmax |
|---|---|
| Compatible with Vehicle Type | ATV, Motorcycle, Personal Watercraft, Snowmobile, UTV |
| Included Components | Battery |
| Dimensions | 2.8"D x 4.49"W x 3.35"H |
| Manufacturer | Daakmax |
| Part Number | YTX4L |
| Manufacturer Warranty Description | 1 Year Warranty |
| Model Number | YTX4L-BS |
| Size | YTX-4L |
| Voltage | 12 volts |
Listed on Amazon as: YTX4L-BS Motorcycle Battery 12V 3Ah, 70 CCA Sealed AGM Rechargeable Maintenance Free Battery, Replacement for ATV, 50cc Scooter, Dirt Bike
View on Amazon#3 · Longer Warranty
3. UPLUS EB4-3
- Dimensions: 2.76"D x 4.45"W x 3.35"H
- Voltage: 12 V
Best for: Maintenance-free YTX4L-BS.
Why it ranks #3: The YTX4L-BS-format battery offers 3Ah, 50 CCA, and a 15-month warranty, with listed compatibility for motorcycles and scooters.
The UPLUS EB4-3 pairs a 12V, 3Ah YTX4L-BS replacement format with a sealed design requiring no water checks, making routine upkeep simple for compatible motorcycle and powersports owners. Its 4.45-by-2.76-by-3.35-inch dimensions and negative-positive terminal layout provide useful installation-check details.
This battery is rated at 50 CCA, so buyers can compare its cranking output with their vehicle’s requirement rather than assuming a higher-output upgrade. The sealed construction is described as spill- and leak-free, and it needs no water checks, reducing maintenance tasks. UPLUS also specifies 99.99% pure primary lead and claims better charging efficiency and reliability than batteries using recycled lead. The listed vehicle types include motorcycles, scooters, ATVs, snowmobiles, and UTVs; dimensions and polarity remain essential fit checks.
- 12V, 3Ah YTX4L-BS replacement
- 50 CCA rating
- Sealed design requires no water checks
- Listed compatibility includes motorcycles, scooters, ATVs, and UTVs
- Its 50 CCA rating is lower than the ExpertPower YTX4L-BS's 120 CCA.
Skip it if you need higher stated cranking output; the ExpertPower YTX4L-BS lists 120 CCA versus this battery's 50 CCA.
This is a practical match for a compatible YTX4L-BS application where maintenance-free sealed construction and the listed 3Ah, 50 CCA output meet requirements. Check the case dimensions and negative-positive terminal layout before choosing it for a motorcycle.
Full product details
| Brand | UPLUS NEW TECHNOLOGY BATTERY |
|---|---|
| Compatible with Vehicle Type | ATV, Motorcycle, Scooter, Snowmobile, UTV |
| Included Components | AGM Battery |
| Dimensions | 2.76"D x 4.45"W x 3.35"H |
| Item Weight | 3 pounds |
| Manufacturer | Leoch Battery |
| Part Number | EB4-3 |
| Manufacturer Warranty Description | 15 Months |
| Model Number | EB4-3 |
| Size | YTX4L-BS(12V 3Ah) |
| Voltage | 12 volts |
Listed on Amazon as: UPLUS YTX4L-BS AGM Motorcycle Battery EB4-3 12V 3Ah Maintenance Free
View on Amazon#4
4. Mighty Max YTX4L-BS
- Dimensions: 4.4"D x 2.75"W x 3.42"H
- Battery Capacity: 3 amp hours
- Voltage: 12 V
Best for: Compact scooter replacement.
Why it ranks #4: Its small 4.4 × 2.75 × 3.42-inch case suits compact installations, with 12V, 3Ah, and 50 CCA specifications.
Its 4.40-by-2.90-by-3.42-inch case pairs a 12V, 3Ah AGM battery with 50 CCA, giving scooter owners a compact sealed option for a small-battery replacement. It arrives charged and ready to install, so routine setup does not require filling or checking water. The left-negative, right-positive terminal layout is clearly specified.
The sealed AGM construction is spill-proof and rechargeable, supporting flexible mounting while avoiding the routine water checks associated with conventional batteries. Its listed dimensions and left-negative, right-positive polarity give owners concrete points to compare against the battery being replaced before installation. At 3Ah and 50 CCA, it is a modest-capacity choice for a compatible small application rather than a high-output upgrade. The package includes the battery and screws, but not a wire harness or mounting accessories.
- 12V, 3Ah capacity with 50 CCA
- Sealed, spill-proof AGM construction
- Arrives charged and maintenance-free
- Dimensions and terminal polarity are specified
- Wire harness and mounting accessories are not included.
Skip it if you need more than 3Ah or 50 CCA; the ExpertPower YTX4L-BS lists 4Ah and 120 CCA.
Choose it for a compatible scooter or small motorcycle needing a compact, sealed 12V replacement with stated terminal orientation. Its 3Ah and 50 CCA ratings set a clear boundary: check that the application calls for this output and case size.
Full product details
| Brand | Mighty Max Battery |
|---|---|
| Battery Capacity | 3 amp_hours |
| Compatible with Vehicle Type | Scooter |
| Included Components | Battery |
| Dimensions | 4.4"D x 2.75"W x 3.42"H |
| Item Weight | 2.9 pounds |
| Manufacturer | Mighty Max Battery |
| Part Number | YTX4L-BS |
| Manufacturer Warranty Description | Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service. |
| Model Number | YTX4L-BS15664 |
| Size | 1 Pack |
| Voltage | 12 volts |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Mighty Max Battery YTX4L-BS – 12 Volt 3 AH, 50 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
View on Amazon#5
5. Goodyear GYTX4L
- Dimensions: 4.4"D x 2.7"W x 3.4"H
- Battery Capacity: 4 amp hours
- Voltage: 12 V
Best for: Flexible-mount 4Ah battery.
Why it ranks #5: The 4Ah battery measures 4.4 × 2.7 × 3.4 inches and is sealed and maintenance-free, but its listed output is 50 CCA.
The Goodyear GYTX4L combines 4Ah capacity with a sealed AGM design that can be mounted in any position except upside down, giving buyers useful installation flexibility. Its 12V output and 50 CCA rating are paired with a compact 4.4-by-2.7-by-3.4-inch case for small-battery applications.
The flexible mounting allowance can help when a compatible battery compartment does not hold the battery upright, while the upside-down restriction gives a clear installation boundary. Sealed, maintenance-free construction removes water-refill and acid-check tasks, and the 4Ah capacity offers more stated capacity than a 3Ah unit. Its 50 CCA rating and 4.4-by-2.7-by-3.4-inch dimensions support a practical output and space comparison. The listed compatible vehicle type is ATV, so confirm the intended application against its fit requirements.
- 12V, 4Ah capacity
- 50 CCA rating
- Mountable in any position except upside down
- Sealed, maintenance-free AGM construction
- Mounting upside down is not permitted.
Skip it if you need higher cranking output; the ExpertPower YTX4L-BS lists 120 CCA versus this battery's 50 CCA.
Consider it for a compatible small application where 4Ah capacity and flexible mounting are useful, while keeping the upside-down restriction in mind. The supplied compatibility lists ATV, so motorcycle buyers should verify that the intended application matches.
Full product details
| Brand | Goodyear |
|---|---|
| Battery Capacity | 4 amp_hours |
| Compatible with Vehicle Type | ATV |
| Included Components | Battery |
| Dimensions | 4.4"D x 2.7"W x 3.4"H |
| Manufacturer | Goodyear |
| Part Number | GYTX4L |
| Manufacturer Warranty Description | 1 Year Manufacturers Warranty |
| Model Number | GYTX4L |
| Size | Standard |
| Voltage | 12 volts |
Listed on Amazon as: Goodyear GYTX4L – 12 Volt 4 AH, 50 CCA, Rechargeable High-Performance, Maintenance Free, SLA – AGM Battery for Motorcycle, ATV, UTV, 4-Wheeler, Snowmobile, Watercraft and more!
View on Amazon#6 · Narrowest Case
6. Pirate Battery YTX4B-BS
- Dimensions: 4.45"D x 1.54"W x 3.43"H
- Voltage: 12 V
Best for: Slim tab-terminal applications.
Why it ranks #6: Its 1.54-inch width and 1.8-pound weight make it especially narrow and light, but its YTX4B-BS format differs from YTX4L.
At just 1.54 inches wide, the Pirate Battery YTX4B-BS offers a distinctly narrow case for compatible scooter, pocket-bike, and mini-ATV compartments. Its 12V AGM format is rated at 2Ah and 40 CCA, and the product specifically identifies a tab terminal, making terminal style a key part of the fit decision.
The narrow 4.45-by-1.54-by-3.43-inch dimensions can help when a compatible compartment has limited width, while the listed tab terminal distinguishes this battery from other terminal arrangements. Its sealed AGM construction prevents spills and resists vibration, and the 2Ah capacity with 40 CCA defines its modest output. The listing names Yamaha Zuma 50, Honda Metropolitan, and Razor Pocket Mod among fit examples. Confirming the required case and terminal style is especially important for these specific applications.
- Narrow 1.54-inch case width
- 12V AGM construction
- Sealed design prevents spills and resists vibration
- Named fit examples include Zuma 50 and Honda Metropolitan
- Its 2Ah capacity and 40 CCA are modest for higher-output needs.
Skip it if you need 3Ah and 50 CCA; the Mighty Max YTX4L-BS lists both in a wider case.
Choose this for a compatible scooter, pocket bike, or mini ATV with a narrow battery space and a tab-terminal requirement. Its 2Ah and 40 CCA ratings define a modest-output boundary, so match the original battery specification carefully.
Full product details
| Brand | Pirate Battery |
|---|---|
| Compatible with Vehicle Type | ATV, Dirt Bike, Lawn Mower, Scooter, Snowmobile |
| Included Components | Battery |
| Dimensions | 4.45"D x 1.54"W x 3.43"H |
| Item Weight | 1.8 pounds |
| Manufacturer | Chrome Battery |
| Part Number | 4B-BS |
| Model Number | YTX4B-BS |
| Size | AGM Powersport Battery |
| Voltage | 12 volts |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including lead and lead compounds which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov |
Listed on Amazon as: Pirate Battery YTX4B-BS 12 V 40 CCA AGM – Maintenance-Free 2 Ah Battery for Scooter, Pocket Bike, Mini ATV – Tab Terminal – Fits Yamaha Zuma 50, Honda Metropolitan, Razor Pocket Mod
View on Amazon#7
7. Battanux YT4B-BS
- Voltage: 12
Best for: Slim YT4B-BS replacement.
Why it ranks #7: The 12V, 2.3Ah YT4B-BS measures 4.45 × 1.5 × 3.35 inches, offering a narrow case for a matching application.
The Battanux YT4B-BS is only 1.5 inches wide, a useful case dimension for compatible motorcycles and powersports vehicles with a narrow battery compartment. It supplies 12V at 2.3Ah and is listed as a replacement for 4B-BS and UT4B-BS models, with negative-positive polarity specified.
Its 4.45-by-1.5-by-3.35-inch case helps buyers assess whether a slim replacement can fit, while the stated negative-positive polarity gives a second concrete installation check. The 12V, 2.3Ah specification defines its available capacity, and the SLA/AGM construction is described as maintenance-free. The package includes the battery, two screws, and two screw nuts. Listed compatible vehicle types include ATV and personal watercraft, while additional fit references include several Yamaha and Suzuki models.
- 12V, 2.3Ah specification
- Slim 1.5-inch width
- Listed replacement for 4B-BS and UT4B-BS
- Includes two screws and two screw nuts
- No CCA rating is specified in the supplied details.
Skip it if you require a stated CCA figure; the Pirate Battery YTX4B-BS lists 40 CCA.
This suits a buyer replacing a compatible YT4B-BS, 4B-BS, or UT4B-BS battery where a narrow case and included screws simplify the fit check. Its supplied details do not give a CCA rating, so output comparisons are limited.
Full product details
| Brand | Battanux |
|---|---|
| Compatible with Vehicle Type | ATV, Personal Watercraft |
| Included Components | The Good of Battery & Two Screw & Two Screw Nuts |
| Manufacturer | Battanux Battery |
| Part Number | Battanux Battery |
| Manufacturer Warranty Description | 1 Year Warranty |
| Model Number | Battanux Battery |
| Voltage | 12 |
Listed on Amazon as: YT4B-BS Battery & Motorcycle Battery, Sealed SLA/AGM 12V2.3Ah ATV/UTV/Snowmoble/Motor bike Battery Maintenance Free & No tools for installation & Advanced Technology & Environmental
View on Amazon#8
8. Mighty Max YTX5L-BS
- Dimensions: 4.4"D x 2.75"W x 4.25"H
- Battery Capacity: 4 amp hours
- Voltage: 12 V
Best for: 4Ah Mighty Max replacement.
Why it ranks #8: This 12V, 4Ah battery supplies 80 CCA, but its 4.25-inch height and YTX5L-BS format require a matching compartment.
The Mighty Max YTX5L-BS combines 4Ah capacity with 80 CCA in a 12V sealed AGM case, offering more stated output than the brand’s 3Ah YTX4L-BS model. It arrives charged and ready to install, with negative-left, positive-right polarity and a 4.40-by-2.75-by-4.25-inch case.
The 4Ah capacity and 80 CCA rating provide concrete figures for matching a replacement to a compatible scooter or motorcycle, while its 4.25-inch height is taller than a compact YTX4L-BS case. The sealed AGM construction is maintenance-free and spill-proof, helping avoid water checks and leakage concerns. The battery is supplied with screws, but no wire harness or mounting accessories. Its terminal layout is specified, so buyers can check polarity alongside compartment dimensions before installation.
- 12V, 4Ah capacity with 80 CCA
- Sealed, spill-proof AGM construction
- Arrives charged and maintenance-free
- Negative-left, positive-right polarity is specified
- Wire harness and mounting accessories are not included.
Skip it if you need a shorter YTX4L-BS case; the Mighty Max YTX4L-BS is 3.42 inches tall rather than 4.25 inches.
This suits a compatible scooter or motorcycle needing a 12V, 4Ah battery with 80 CCA and a stated terminal layout. Check the taller YTX5L-BS case against available space, and account for the absence of a harness and mounting accessories.
Full product details
| Brand | Mighty Max Battery |
|---|---|
| Battery Capacity | 4 amp_hours |
| Compatible with Vehicle Type | Scooter |
| Included Components | Battery |
| Dimensions | 4.4"D x 2.75"W x 4.25"H |
| Item Weight | 5 pounds |
| Manufacturer | Mighty Max Battery |
| Part Number | YTX5L-BS |
| Manufacturer Warranty Description | 1 Year manufacturer |
| Model Number | YTX5L-BS3 |
| Size | Standard |
| Voltage | 12 volts |
Listed on Amazon as: Mighty Max Battery YTX5L-BS -12 Volt 4 AH, 80 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
View on Amazon#9
9. ExpertPower YTX7A-BS
- Dimensions: 3.43"D x 5.91"W x 3.7"H
- Battery Capacity: 7 amp hours
- Voltage: 12 V
Best for: High-output powersports battery.
Why it ranks #9: It offers 7Ah and 180 CCA, but its 5.91 × 3.43 × 3.7-inch dimensions are larger than the compact YTX4L options.
The ExpertPower YTX7A-BS combines 7Ah capacity with a 180 CCA rating, positioning it for compatible powersports applications that need more stated output than a standard 6Ah or 6.5Ah replacement. Its spill-proof AGM construction also addresses vibration, a practical consideration for off-road ATVs and high-RPM motorcycles.
At 7Ah, this is listed as an upgrade for standard 12V 6Ah or 6.5Ah batteries, while 180 CCA provides a specific cranking figure for assessing ignition needs. Its 3.43-by-5.91-by-3.7-inch case makes dimensions important to check in the battery compartment. The AGM design is described as leak-proof and resistant to intense vibration, supporting off-road use. Listed vehicle types include ATV, personal watercraft, scooter, snowmobile, and UTV, so application fit remains central.
- 7Ah capacity
- 180 CCA rating
- Leak-proof AGM design resists vibration
- Listed as an upgrade for 12V 6Ah and 6.5Ah batteries
- Its 5.91-inch width may not suit a compact battery compartment.
Skip it if you need a compact YTX4L-BS battery; the ExpertPower YTX4L-BS measures 4.45 inches wide.
This fits buyers seeking a 7Ah, 180 CCA replacement for a compatible ATV, scooter, or other listed powersports vehicle, especially where vibration resistance matters. Its YTX7A-BS dimensions are notably broader than compact formats, so compartment space is a key boundary.
Full product details
| Brand | ExpertPower |
|---|---|
| Battery Capacity | 7 amp_hours |
| Compatible with Vehicle Type | ATV, Personal Watercraft, Scooter, Snowmobile, UTV |
| Included Components | BLMMYB12_7 |
| Dimensions | 3.43"D x 5.91"W x 3.7"H |
| Item Weight | 5.5 pounds |
| Manufacturer | ExpertPower |
| Part Number | ETX7A-BS |
| Manufacturer Warranty Description | 1 year |
| Model Number | YTX7A-BS |
| Size | YTX7A-BS |
| Voltage | 12 volts |
| Additional Information | Important information Safety Information DOT Certified |
Listed on Amazon as: ExpertPower YTX7A-BS 12V 7Ah AGM Motorcycle Battery 180 CCA OEM Fit
View on Amazon#10
10. Mighty Max YTX7L-BS
- Dimensions: 4.4"D x 2.75"W x 5.19"H
- Battery Capacity: 6 amp hours
- Voltage: 12 V
Best for: Higher-capacity Mighty Max fit.
Why it ranks #10: Its 6Ah capacity and 100 CCA suit a matching YTX7L installation, but the 5.19-inch height is less compact.
A 6Ah capacity and 100 CCA distinguish this 12V Mighty Max battery from smaller-output options, giving compatible scooter applications more stated capacity and cranking output. Its 4.40-by-2.75-by-5.19-inch case has positive-right, negative-left polarity. The sealed AGM design is spill-proof and rechargeable for maintenance-free use.
The 6Ah rating is double the 3Ah capacity of a smaller YTX4L-BS option, while 100 CCA gives buyers a defined cranking-output figure to match against their vehicle requirements. Its stated dimensions and positive-right, negative-left terminals help guide a replacement check before installation. The sealed SLA/AGM construction is spill-proof and rechargeable, reducing upkeep. The listing includes the battery and screws only; a wire harness and mounting accessories are not included.
- 12V, 6Ah capacity
- 100 CCA rating
- Sealed, spill-proof rechargeable AGM
- Dimensions and terminal polarity are specified
- Wire harness and mounting accessories are not included.
Skip it if you need a smaller YTX4L-BS case; the Mighty Max YTX4L-BS is 3.42 inches tall rather than 5.19 inches.
This suits a scooter owner whose compatible battery compartment accepts the listed 5.19-inch height and whose application calls for 6Ah and 100 CCA. Check the positive-right, negative-left layout and plan separately for any mounting hardware or harness needs.
Full product details
| Brand | Mighty Max Battery |
|---|---|
| Battery Capacity | 6 amp_hours |
| Compatible with Vehicle Type | Scooter |
| Included Components | Battery |
| Dimensions | 4.4"D x 2.75"W x 5.19"H |
| Manufacturer | Mighty Max Battery |
| Part Number | YTX7L-BS892 |
| Manufacturer Warranty Description | 1 Year Warranty |
| Model Number | YTX7L-BS892 |
| Size | 1 Pack |
| Voltage | 12 volts |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Mighty Max Battery YTX7L-BS -12 Volt 6 AH, 100 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
View on AmazonAvoid the wrong battery family
A battery can be small and still fail to fit if its model family or terminal layout differs from the original. The listings include YTX4L-BS, YTX4B-BS, YT4B-BS, YTX5L-BS, YTX7L-BS, and YTX7A-BS formats; these names should not be treated as interchangeable. For example, the Pirate Battery YTX4B-BS is only 1.54 inches wide, while the ExpertPower YTX4L-BS is 2.76 inches wide.
Both are compact, but that does not make their cases equivalent. Check the existing battery’s model code, measured length, width, and height, then compare terminal position and connection style.
The Battanux YT4B-BS listing specifically advises checking dimensions and polarity, while the Pirate listing identifies tab terminals. If your motorcycle’s manual gives an OEM battery code, use it to verify fit rather than relying only on a broad vehicle-type label.
More CCA does not solve a fit mismatch
Higher cold cranking amps can be useful, but they do not compensate for an incorrect case size or incompatible terminals. These listings range from 40 CCA on the 2Ah Pirate Battery YTX4B-BS to 180 CCA on the 7Ah ExpertPower YTX7A-BS. Among the YTX4L-format options, the ExpertPower YTX4L-BS lists 120 CCA, while the Daakmax YTX4L-BS lists 70 CCA and several others list 50 CCA.
Those figures make output a useful comparison after confirming physical fit and the vehicle’s requirements. Do not assume a higher number automatically makes a battery the better replacement: the 180 CCA model is also 5.91 inches long, and its YTX7A-BS designation differs from the smaller YTX4L family.
Match the specified battery family first, then compare capacity and CCA within compatible candidates.
How to Choose a Small Motorcycle Battery
Case size and battery family
Start by matching the battery family and dimensions required by your motorcycle. The compact YTX4L choices measure roughly 4.4–4.49 inches long, 2.7–2.8 inches wide, and 3.35–3.42 inches high; the YTX7A option measures 5.91 × 3.43 × 3.7 inches. Different families can have noticeably different proportions: the Pirate YTX4B-BS is 1.54 inches wide, while the Mighty Max YTX5L-BS is 4.25 inches high.
A close match to your original battery is preferable to choosing by capacity alone. Riders replacing a YTX4L-BS should focus on the YTX4L listings, while a YTX4B or YT4B owner should verify those specific dimensions and terminal styles instead.
Starting output and capacity
Choose capacity and cold cranking amps that meet your motorcycle’s requirements, then compare compatible models. Listed capacities span 2Ah for the Pirate YTX4B-BS, 2.3Ah for the Battanux YT4B-BS, 3–4Ah for several compact choices, and 6–7Ah for the YTX7 models. CCA ranges from 40 to 180 across the products; the ExpertPower YTX4L-BS pairs 4Ah with 120 CCA, while the Mighty Max YTX4L-BS lists 3Ah and 50 CCA.
For a compatible small-engine application seeking more listed starting output, the higher-CCA YTX4L options may appeal. If your bike specifies a different battery family or rating, follow that requirement rather than assuming a larger number will work.
Polarity and terminal arrangement
Verify terminal position and connection type against your old battery before ordering. The Mighty Max YTX4L-BS specifies negative on the left and positive on the right, while the Daakmax listing describes a standard [- +] layout; the Pirate YTX4B-BS uses tab terminals. The UPLUS EB4-3 also lists a [- +] terminal arrangement.
These details matter because a battery that fits the compartment may still be difficult or unsuitable to connect if its terminals are oriented differently. Riders whose existing battery has a clearly labeled layout can compare it directly with the listing.
If the arrangement is unclear, check the vehicle manual or inspect the battery before purchase rather than inferring polarity from a similar-looking model code.
Which Small Motorcycle Battery Should I Choose?
Choose the ExpertPower YTX4L-BS if your motorcycle takes a YTX4L-format battery and you want the strongest listed combination in that compact group: 4Ah and 120 CCA. The Daakmax YTX4L-BS is another YTX4L option, listing 70 CCA in a similarly compact case. For a 3Ah YTX4L replacement with a stated 15-month warranty, consider the UPLUS EB4-3; the Mighty Max YTX4L-BS is a 50 CCA alternative.
If your original battery is especially narrow and uses the matching family, compare the Pirate Battery YTX4B-BS or Battanux YT4B-BS. Choose the Mighty Max YTX5L-BS, ExpertPower YTX7A-BS, or Mighty Max YTX7L-BS only when that specific larger battery family and case size match your motorcycle.
Related Buying Guides
Frequently Asked Questions
How can I confirm that a small motorcycle battery will fit my bike?
Check your motorcycle’s manual or the label on its current battery for the required battery family, dimensions, polarity, and terminal style. Compare those details with the replacement listing; matching voltage alone is not enough. Confirm the case clears the battery compartment and that the cable ends reach the terminals correctly.
What do CCA and amp-hours mean when choosing a motorcycle battery?
CCA (cold cranking amps) indicates a battery’s listed starting-current capability, while amp-hours (Ah) describe its capacity. Use both figures when comparing compatible options, but first verify that the battery’s size, terminals, and family match your motorcycle. A higher figure by itself does not establish that a battery will fit or suit your bike.
Can I replace my motorcycle battery with a different YTX model?
Only if the different YTX model is specified as compatible with your motorcycle and matches the required case size and terminal arrangement. YTX designations do not guarantee interchangeable dimensions or connections. Check your manual or original battery details against the replacement listing rather than choosing by the shared letters or a higher capacity figure.
Does a higher CCA or amp-hour rating guarantee a better choice?
No. Higher listed CCA or amp-hours can be useful when comparing batteries that already match your motorcycle, but they do not override fit and compatibility requirements. For example, the ExpertPower YTX4L-BS lists 4Ah and 120 CCA, but it is a suitable choice only when your bike accepts that battery format and terminal arrangement.
How do I choose between YTX4L and YTX4B battery families?
Start with the family specified for your motorcycle rather than treating the two formats as interchangeable. The listed options include YTX4L and YTX4B batteries, but their family names alone do not establish a fit for your bike. Verify the original battery designation, case dimensions, and terminal arrangement before selecting either type.
Final Words
For a motorcycle that accepts the YTX4L-BS format, the ExpertPower YTX4L-BS is the leading pick in this group, with listed 4Ah capacity and 120 CCA. The Daakmax is another YTX4L option; consider the UPLUS for its stated 15-month warranty or the Mighty Max as a 50 CCA alternative. For other battery families, choose a listed option only after confirming the required case and terminals.
