A strong dirt-bike battery should match your bike’s required case size and terminal layout while providing enough cranking power for reliable starts. For a wide range of modern 250cc and 450cc bikes, the Antigravity ATZ5 stands out with 170 cranking amps and listed replacement compatibility with several YTX and YTZ cases. Other options span compact 3Ah AGM batteries, higher-output AGM replacements, and a lightweight lithium model.
The right choice depends on your bike’s specified battery type and dimensions—not just the highest CCA figure. Compare the original battery’s label, measurements, and terminal orientation with the details below before ordering.
These picks include products explicitly described for dirt bikes as well as broader powersports batteries whose fit should be confirmed for your exact model.
The Antigravity ATZ5 is the leading choice for many modern dirt bikes because its listed fitment includes YTX4L-BS and YTX5L-BS replacements, and it delivers 170 cranking amps. Its 12V design and compact 4.25 x 2.25 x 3.37-inch dimensions may suit riders seeking a lightweight alternative to lead-acid batteries. Confirm your bike’s required case size and terminals first; the product’s stated 250cc and 450cc use does not establish compatibility with every dirt bike.
Our Top Picks
Best OverallIts listing targets modern 250cc and 450cc dirt bikes, supplies 170 cranking amps, and names several YTX and YTZ replacement sizes.
View on Amazon
Lightweight LithiumThis dirt-bike replacement claims 140 CCA, weighs 1.26 pounds, and lists fitment for models including Honda CRF50F and Yamaha TTR125.
View on Amazon
Highest CCAThe YTX4L-BS format offers 120 CCA and 4Ah capacity, with the listing identifying dirt bikes among its intended applications.
View on Amazon- Broad Fitment UPLUS EB5-3
- Dirt Bike Fit ZIPPBATTERY YTX4L-BS
Compare Dirt-Bike Battery Options
| # | Product | Dimensions | Weight | Voltage | Buy |
|---|---|---|---|---|---|
| 1 | 1. Antigravity ATZ5Best Overall | 4.25"D x 2.25"W x 3.37"H | 15.2 oz | 12 V | View on Amazon |
| 2 | 2. TYKOOL LFP4L-BSLightweight Lithium | 4.44"D x 2.7"W x 3.34"H | 0.7 kg | 12 V | View on Amazon |
| 3 | 3. ExpertPower YTX4L-BSHighest CCA | 2.76"D x 4.45"W x 3.39"H | 2.9 lb | 12 V | View on Amazon |
| 4 |  4. UPLUS EB5-3Broad Fitment | 2.76"D x 4.45"W x 4.13"H | 4 lb | 12 V | View on Amazon |
| 5 |  5. ZIPPBATTERY YTX4L-BSDirt Bike Fit | 4.45"D x 2.76"W x 3.39"H | 3 lb | 12 V | View on Amazon |
| 6 |  6. Daakmax YTX5L-BSHigher-output compact AGM | 2.8"D x 4.49"W x 4.17"H | — | 12 V | View on Amazon |
| 7 |  7. Daakmax YTX4L-BSSmall-bike 70 CCA AGM | 2.8"D x 4.49"W x 3.35"H | — | 12 V | View on Amazon |
| 8 |  8. Mighty Max YTX4L-BS ATVYTX4L-BS ATV and pit-bike replacement | 4.4"D x 2.75"W x 3.42"H | 3 lb | 12 V | View on Amazon |
| 9 |  9. ExpertPower YTX7A-BSHigher-capacity 7Ah powersports battery | 3.43"D x 5.91"W x 3.7"H | 5.5 lb | 12 V | View on Amazon |
| 10 | 10. Mighty Max YTX4L-BSCompact AGM for small bikes | 4.4"D x 2.75"W x 3.42"H | 2.9 lb | 12 V | View on Amazon |
Detailed Reviews: Best Battery For Dirt Bike
#1 · Best Overall
1. Antigravity ATZ5
- Dimensions: 4.25"D x 2.25"W x 3.37"H
- Weight: 15.2 oz
- Voltage: 12 V
Best for: High-output lightweight lithium.
Why it ranks #1: Its listing targets modern 250cc and 450cc dirt bikes, supplies 170 cranking amps, and names several YTX and YTZ replacement sizes.
A 170-amp cranking rating paired with a 15.2-ounce listed weight sets the Antigravity ATZ5 apart for compatible dirt bikes where starting output and low battery mass both matter. Its 12V lithium battery is identified as a replacement for several YTZ and YTX case types.
The listed 5Ah PbEq capacity and 170 cranking amps target stronger starts for 250cc and 450cc dirt bikes and enduro models, while the small 4.25-by-2.25-by-3.37-inch case supports replacement use in specified OEM sizes. A built-in battery management system includes over-discharge protection, adding a layer of battery monitoring. Its broad replacement list is useful, but buyers still need to compare case dimensions and terminals with their original battery before installation.
- 170 cranking amps
- 5Ah PbEq capacity
- 15.2-ounce listed weight
- Built-in BMS includes over-discharge protection
- Its 4.25-by-2.25-by-3.37-inch case differs from the 4.45-by-2.76-by-3.35-inch TYKOOL LFP4L-BS-STD.
Skip it if you need an on-battery digital readout; the TYKOOL LFP4L-BS-STD lists one.
This battery fits riders targeting a lightweight, high-cranking replacement for compatible 250cc or 450cc dirt bikes and enduro models. Its specified replacement types and compact dimensions matter; verify the original case and terminal arrangement before choosing it.
Full product details
| Brand | Antigravity Batteries |
|---|---|
| Compatible with Vehicle Type | ATV, Dirt Bike, Generator, Lawn Mower, Motorcycles, Personal Watercraft, Snowmobile, UTV |
| Included Components | ATZ5 |
| Dimensions | 4.25"D x 2.25"W x 3.37"H |
| Item Weight | 15.2 ounces |
| Manufacturer | Antigravity Batteries |
| Part Number | AG-ATZ5-X |
| Manufacturer Warranty Description | 3 Year Prorated |
| Model Number | AG-ATZ5-X |
| Voltage | 12 volts |
Listed on Amazon as: Antigravity ATZ5 YTZ5S YTZ7S Motorcycle Dirt Bike Battery
View on Amazon#2 · Lightweight Lithium
2. TYKOOL LFP4L-BS
- Dimensions: 4.44"D x 2.7"W x 3.34"H
- Weight: 0.7 kg
- Voltage: 12 V
Best for: Lightweight digital-readout lithium.
Why it ranks #2: This dirt-bike replacement claims 140 CCA, weighs 1.26 pounds, and lists fitment for models including Honda CRF50F and Yamaha TTR125.
At 1.26 pounds with a digital readout, the TYKOOL lithium battery combines low listed weight with a feature that makes battery status visible. Its 140 CCA and YTX4L-BS replacement format target compatible small dirt bikes, ATVs and scooters.
The 4.45-by-2.76-by-3.35-inch case and negative-positive polarity offer clear points for comparing fit and connections, while vibration-proof terminal bolts support secure off-road mounting. Its 140 CCA rating and 3Ah capacity are paired with a smart BMS, and the digital display provides a battery-status readout. The listed weight is much lower than the 3-pound ZIPPBATTERY AGM, which may appeal to riders reducing carried battery mass.
- 140 CCA rating
- 1.26-pound listed weight
- Digital readout and smart BMS
- Vibration-proof terminal bolts included
- Its 3Ah capacity is lower than the 4Ah ZIPPBATTERY YTX4L-BS.
Skip it if you prioritize 4Ah capacity in a YTX4L-BS battery; the ZIPPBATTERY YTX4L-BS lists 4Ah.
Pick this for a compatible dirt bike or ATV where low battery weight, a digital readout and secure terminal hardware are priorities. Its 3Ah capacity and listed case dimensions remain important boundaries to compare with the original battery.
Full product details
| Brand | TYKOOL |
|---|---|
| Battery Capacity | 3 amp_hours |
| Compatible with Vehicle Type | Motorcycle, Dirt bike, ATV, Scooter |
| Included Components | 1 x 12.8V Lithium Battery, 2 x M5 Nuts, 2 x Terminal Caps, 1 x User Manual |
| Dimensions | 4.44"D x 2.7"W x 3.34"H |
| Item Weight | 0.7 kg |
| Manufacturer | TYKOOL |
| Part Number | LFP4L-BS-STD |
| Manufacturer Warranty Description | 1 year warranty |
| Model Number | LFP4L-BS-STD |
| Size | 4L-BS-STD |
| Voltage | 12 volts |
#3 · Highest CCA
3. ExpertPower YTX4L-BS
- Dimensions: 2.76"D x 4.45"W x 3.39"H
- Weight: 2.9 lb
- Voltage: 12 V
Best for: Compact 4Ah high-CCA replacement.
Why it ranks #3: The YTX4L-BS format offers 120 CCA and 4Ah capacity, with the listing identifying dirt bikes among its intended applications.
The ExpertPower YTX4L-BS pairs 4Ah capacity with 120 CCA, giving compact-battery buyers a substantial stated output increase over 3Ah, 50 CCA options. Its 12V AGM format is listed for dirt bikes, ATVs, motorcycles and scooters that use this replacement size.
At 4.45 by 2.76 by 3.39 inches, the case offers a defined fit reference, and the listing identifies YT4L, GTX4L and GT4L models as direct OEM swaps. The 120 CCA rating supports cold-start use, while the 4Ah capacity is described as providing longer runtime than standard 3Ah units. Its compatible-vehicle list does not name dirt bikes, so buyers should treat the dirt-bike application as a feature claim and check their actual fitment.
- 12V, 4Ah capacity
- 120 CCA rating
- Direct OEM swap listed for YT4L, GTX4L and GT4L
- Dimensions are specified
- It is taller than the 3.35-inch Daakmax YTX4L-BS.
Skip it if your battery compartment is limited to 3.35 inches tall; the Daakmax YTX4L-BS lists that height.
This is a strong candidate for riders needing a compact YTX4L-BS replacement with 4Ah and 120 CCA. Compare its 3.39-inch height and listed OEM swap types with the old battery, particularly if the compartment has tight clearance.
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#4 · Broad Fitment
4. UPLUS EB5-3
- Dimensions: 2.76"D x 4.45"W x 4.13"H
- Weight: 4 lb
- Voltage: 12 V
Best for: Fitment-listed 4Ah AGM.
Why it ranks #4: This 12V 4Ah AGM battery provides 80 CCA and lists dirt-bike-relevant fitment including Honda CRF models and Yamaha WR450F.
A broad fitment list that names dirt-bike models such as the Honda CRF150F and Yamaha WR450F gives this UPLUS YTX5L-BS a useful application-specific advantage. Its sealed 12V, 4Ah AGM battery provides 80 CCA and maintenance-free operation.
The 4.45-by-2.76-by-4.13-inch case and negative-positive terminal layout help riders compare dimensions and connections before replacing a battery. Its AGM construction is described as spill- and leak-free, with no water checks required, reducing routine maintenance. The listed fitment data spans multiple motorcycles and ATVs, but the case dimensions still matter: buyers should compare them against their existing battery and compartment rather than relying on a model name alone.
- 12V, 4Ah capacity
- 80 CCA rating
- Sealed AGM needs no water checks
- Fitment facts name multiple dirt-bike models
- Its 80 CCA is lower than the 120 CCA ExpertPower YTX4L-BS.
Skip it if you need at least 120 CCA; the ExpertPower YTX4L-BS lists 120 CCA.
This UPLUS suits dirt-bike owners whose application appears in its fitment information and who want a sealed 4Ah AGM battery. Confirm the 4.13-inch height and terminal orientation against the original, as fitment depends on case and connection compatibility.
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 4.13"H |
| Item Weight | 4 pounds |
| Manufacturer | Leoch Battery |
| Part Number | EB5-3 |
| Manufacturer Warranty Description | 15 Months |
| Model Number | EB5-3 |
| Size | YTX5L-BS(12V 4Ah) |
| Voltage | 12 volts |
Listed on Amazon as: UPLUS YTX5L-BS Motorcycle Battery EB5-3 12V 4Ah AGM Maintenance Free
View on Amazon#5 · Dirt Bike Fit
5. ZIPPBATTERY YTX4L-BS
- Dimensions: 4.45"D x 2.76"W x 3.39"H
- Weight: 3 lb
- Voltage: 12 V
Best for: Vibration-resistant AGM for dirt bikes.
Why it ranks #5: The listing explicitly names dirt bikes and Yamaha TTR125E among compatible applications; its YTX4L-BS AGM design supplies 50 CCA.
A sealed AGM case that resists spills and vibration makes the ZIPPBATTERY YTX4L-BS a straightforward option for dirt-bike use. It supplies 12 volts and 50 CCA in a rechargeable format, with a T3 nut-and-bolt terminal design and a listed 4Ah capacity.
The 4.45-by-2.76-by-3.39-inch dimensions give riders a defined case to compare, and the included nuts and bolts support connection setup. Its AGM construction is described as maintenance-free, spill-resistant and vibration-resistant, which suits rougher riding conditions without routine water checks. The 50 CCA rating is lower than the ExpertPower YTX4L-BS's 120 CCA, so this model better suits buyers whose priority is a basic AGM replacement rather than maximum listed cranking output.
- 12V, 4Ah capacity
- 50 CCA rating
- Sealed AGM resists spills and vibration
- Nuts and bolts included
- Its 50 CCA rating is lower than the 120 CCA ExpertPower YTX4L-BS.
Skip it if you want stronger listed cranking output; the ExpertPower YTX4L-BS provides 120 CCA.
This ZIPPBATTERY is suited to riders seeking a maintenance-free AGM replacement for a compatible dirt bike, mini ATV or scooter. Check the 4.45-by-2.76-by-3.39-inch case and T3 terminal setup, and weigh its 50 CCA rating against starting needs.
Full product details
| Brand | ZIPPBATTERY |
|---|---|
| Compatible with Vehicle Type | ATV, Dirt Bike, Motorcycle, Personal Watercraft, Scooter |
| Included Components | Nuts and Bolts |
| Dimensions | 4.45"D x 2.76"W x 3.39"H |
| Item Weight | 3 pounds |
| Manufacturer | Chrome Battery |
| Part Number | YTX4L-BS |
| Model Number | YTX4L-BS |
| Size | Powersport AGM 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 |
#6
6. Daakmax YTX5L-BS
- Dimensions: 2.8"D x 4.49"W x 4.17"H
- Voltage: 12 V
Best for: Higher-output compact AGM.
Why it ranks #6: Its listing includes dirt bikes, and the 12V battery provides 4Ah and 80 CCA; verify its taller 4.17-inch case against your tray.
An 80 CCA rating is the key draw of this Daakmax YTX5L-BS battery, giving buyers more stated cranking output than a 50 CCA compact replacement. Its 12V, 4Ah AGM construction is listed for ATVs, scooters and dirt bikes, including 125cc engines.
The 4.49-by-2.80-by-4.17-inch dimensions and standard negative-positive terminal layout help buyers compare the case and connections with the battery being replaced. Sealed AGM construction avoids acid spills and does not require routine water addition, reducing upkeep. At 4.12 pounds, it is heavier than the listed 1.26-pound TYKOOL lithium battery, so riders prioritizing minimal battery weight may prefer that alternative if its fit and specifications suit their bike.
- 12V, 4Ah capacity
- 80 CCA rating
- Sealed AGM battery needs no water addition
- Listed for ATV, motorcycle, scooter and dirt-bike applications
- At 4.12 pounds, it weighs more than the 1.26-pound TYKOOL lithium battery.
Skip it if you prioritize minimum battery weight; the TYKOOL LFP4L-BS-STD is listed at 1.26 pounds.
This Daakmax suits riders seeking a 4Ah AGM replacement with 80 CCA for a compatible dirt bike, ATV or scooter. Check the 4.17-inch height and terminal arrangement against the original battery, especially when case clearance is limited.
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 4.17"H |
| Manufacturer | Daakmax |
| Part Number | YTX5L |
| Manufacturer Warranty Description | 1 Year Warranty |
| Model Number | YTX5L-BS |
| Size | YTX-5L |
| Voltage | 12 volts |
Listed on Amazon as: DaakmaxYTX5L-BS Motorcycle Battery 12V 4Ah, 80 CCA Sealed AGM Rechargeable Maintenance Free Battery, Replacement for ATV, 4 Wheeler, Scooter, Dirt Bike
View on Amazon#7
7. Daakmax YTX4L-BS
- Dimensions: 2.8"D x 4.49"W x 3.35"H
- Voltage: 12 V
Best for: Small-bike 70 CCA AGM.
Why it ranks #7: This compact 12V AGM option lists dirt-bike use and supplies 70 CCA, with stated dimensions of 4.49 x 2.80 x 3.35 inches.
With 70 CCA in a compact YTX4L-BS form, this Daakmax offers a higher stated cranking rating than a 50 CCA alternative in the same general battery category. The 12V, 3Ah sealed AGM model is listed for small ATVs, scooters and dirt bikes.
Its 4.49-by-2.80-by-3.35-inch case and standard negative-positive terminal layout provide measurements and connection orientation to compare with the old battery before installation. The sealed AGM design is maintenance-free, does not need water added and will not spill acid, simplifying routine ownership. The 3Ah capacity remains modest, however, so riders seeking greater capacity can consider the 4Ah ExpertPower YTX4L-BS instead, if its dimensions and fit are suitable.
- 12V, 3Ah capacity
- 70 CCA rating
- Sealed AGM design requires no water addition
- Dimensions and terminal layout are listed
- Its 3Ah capacity is lower than the 4Ah ExpertPower YTX4L-BS.
Skip it if you want 4Ah capacity in a YTX4L-BS option; ExpertPower's YTX4L-BS lists 4Ah.
Choose this for a small dirt bike, ATV or scooter needing a compact 12V AGM battery with 70 CCA. Its 3Ah capacity and listed 4.49-by-2.80-by-3.35-inch dimensions make capacity needs and available case space key considerations.
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#8
8. Mighty Max YTX4L-BS ATV
- Dimensions: 4.4"D x 2.75"W x 3.42"H
- Weight: 3 lb
- Voltage: 12 V
Best for: YTX4L-BS ATV and pit-bike replacement.
Why it ranks #8: Its title specifically includes dirt and pit bikes from 50cc to 125cc, while the 12V, 3Ah battery is rated at 50 CCA.
A title explicitly naming ATV quads and 50-to-125cc dirt and pit bikes makes this Mighty Max a targeted YTX4L-BS replacement option. It supplies 12 volts, 3Ah and 50 CCA in a sealed lead-acid battery, with a compact case and stated terminal polarity for installation checks.
Its 4.40-by-2.90-by-3.42-inch dimensions and negative-left, positive-right terminals give buyers useful details to compare against the old battery. The sealed SLA/AGM construction is described as spill-proof, rechargeable and maintenance-free, supporting a lower-maintenance routine than a conventional battery. The listing includes the battery and screws only, so riders should plan around their existing wiring and mounting setup rather than expecting a harness or mount in the package.
- Title identifies 50/70/110/125cc ATV and dirt/pit-bike use
- 12V, 3Ah capacity
- 50 CCA rating
- Battery and screws are included
- Its 50 CCA rating is lower than the 70 CCA Daakmax YTX4L-BS.
Skip it if you want 70 CCA in a YTX4L-BS-format battery; the Daakmax YTX4L-BS lists that output.
Consider it for an ATV quad or smaller dirt or pit bike whose existing battery matches the YTX4L-BS dimensions and polarity. Its 50 CCA rating and battery-and-screws-only package are important limits for buyers planning an installation.
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 | 3 pounds |
| Manufacturer | Mighty Max Battery |
| Part Number | YTX4L-BS156182 |
| Manufacturer Warranty Description | 1 Year Manufacturers Warranty |
| Model Number | YTX4L-BS156182 |
| Size | 1 Pack |
| Voltage | 12 volts |
Listed on Amazon as: Mighty Max Battery YTX4L-BS SLA Battery for ATV Quad Dirt/Pit Bike 50/70/110/125 CC
View on Amazon#9
9. ExpertPower YTX7A-BS
- Dimensions: 3.43"D x 5.91"W x 3.7"H
- Weight: 5.5 lb
- Voltage: 12 V
Best for: Higher-capacity 7Ah powersports battery.
Why it ranks #9: The 12V AGM battery offers 7Ah and 180 CCA for broad powersports use, but its larger case and lack of explicit dirt-bike fitment lower its position.
A 7Ah capacity and 180 CCA make this ExpertPower YTX7A-BS a higher-output choice for riders whose bike accepts its larger case. The 12V AGM battery is positioned for varied powersports applications, including 50cc, 125cc and 150cc vehicles.
The 5.91-by-3.43-by-3.7-inch dimensions are substantially larger than the compact YTX4L-BS batteries in this roundup, so checking available space is essential. Its 180 CCA rating supports the starting demand, while sealed AGM construction is described as leak-proof and resistant to intense vibration—useful traits for off-road riding. The 7Ah capacity is also listed as an upgrade for standard 12V 6Ah or 6.5Ah batteries, but only where the YTX7A-BS size fits.
- 12V, 7Ah capacity
- 180 CCA rating
- Sealed AGM design resists leaks and vibration
- Listed as an upgrade for 6Ah and 6.5Ah batteries
- Its 5.91-inch length exceeds the 4.45-inch ExpertPower YTX4L-BS length.
Skip it if you have space only for a compact YTX4L-BS case; the ExpertPower YTX4L-BS is shorter.
Consider this ExpertPower for a dirt bike or other powersports vehicle that takes a YTX7A-BS-size battery and can use its 7Ah capacity and 180 CCA. Its larger case is the main fit boundary, so measure the battery compartment.
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 YTX4L-BS
- Dimensions: 4.4"D x 2.75"W x 3.42"H
- Weight: 2.9 lb
- Voltage: 12 V
Best for: Compact AGM for small bikes.
Why it ranks #10: This 12V, 3Ah AGM battery has 50 CCA, but its listed compatible vehicle type is scooter rather than dirt bike.
A sealed 12-volt AGM format gives this Mighty Max battery a spill-proof, rechargeable option for compact powersports applications. Its 3Ah capacity and 50 CCA suit buyers seeking a basic YTX4L-BS replacement, while the listed dimensions help with checking space before installation.
The 4.40-by-2.90-by-3.42-inch case and left-negative, right-positive polarity give buyers concrete measurements to compare with the existing battery before fitting. AGM construction is described as spill-proof and maintenance-free, so routine water checks are not part of its listed care. It arrives charged and ready to install, but the package includes only the battery and screws; the absence of a wire harness or mounting accessories makes existing hardware important.
- 12V, 3Ah sealed AGM construction
- 50 CCA rating
- Listed as charged and ready to install
- Dimensions and terminal polarity are specified
- Only 50 CCA, less than the 70 CCA Daakmax YTX4L-BS.
Skip it if you need more than 50 CCA; the Daakmax YTX4L-BS is listed at 70 CCA.
This is a practical choice for a small dirt bike or powersports vehicle already using a compatible YTX4L-BS-sized battery. Check its dimensions and left-negative, right-positive layout, and have mounting hardware and wiring ready because neither is included.
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 AmazonAvoiding a battery fitment mismatch
A matching battery code is only a starting point; compare the case dimensions and terminal orientation with the original before buying. The listings show why: YTX4L-BS products vary in stated dimensions, and the TYKOOL LFP4L-BS specifies negative-left, positive-right polarity. The Mighty Max listing also specifies polarity and says the package includes the battery and screws only, with no wire harness or mounting accessories.
A battery that is too tall, wide, or incorrectly oriented may not fit the tray or connect safely even if its model code looks familiar. Check the battery label, measure the old case, and compare terminal positions and connector needs.
Do not assume a broad vehicle-type label or a claimed replacement code alone confirms fit for your exact bike.
When repeated flat batteries need diagnosis
A replacement battery may not solve repeated discharge if the underlying charging or electrical issue remains. The products listed here include sealed AGM options and lithium models, but none of the supplied specifications diagnoses a dirt bike’s charging system, wiring, or parasitic drain. Before replacing a battery again, check whether it holds charge off the bike and whether the bike’s charging system operates within the manufacturer’s requirements; use a service manual or qualified technician for the correct procedure.
Lithium also changes the trade-off: the TYKOOL listing describes a built-in management system, while Antigravity lists a BMS, but those features do not establish compatibility with every charging system. Follow the battery maker’s charging instructions and the bike maker’s requirements before changing battery chemistry.
How to Choose a Dirt-Bike Battery
Case size and terminal layout
Start by matching the battery’s case dimensions and terminal orientation to your existing battery. Listed examples range from the Antigravity ATZ5 at 4.25 x 2.25 x 3.37 inches to the ExpertPower YTX7A-BS at 5.91 x 3.43 x 3.7 inches; the TYKOOL LFP4L-BS is 4.45 x 2.76 x 3.35 inches. These are meaningfully different footprints, so a higher CCA rating cannot compensate for a battery that will not fit.
Buyers replacing a compact YTX4L-style unit should focus on close dimensional matches and polarity. Riders with a larger battery compartment may consider larger formats only if the bike manufacturer specifies them.
Cranking amps and capacity
Look for CCA and amp-hour figures that meet or exceed your bike maker’s requirements without ignoring fitment. The supplied options range from 50 CCA on both Mighty Max YTX4L-BS batteries and ZIPPBATTERY to 120 CCA on ExpertPower YTX4L-BS, 140 CCA on TYKOOL, and 170 cranking amps on Antigravity. Listed capacity ranges from 3Ah to 7Ah where provided.
Riders prioritizing strong starting output can compare the higher-CCA models, while a standard small-bike replacement may need less. Do not treat CCA or capacity as proof of compatibility: confirm the recommended battery specification for your bike before selecting a higher-output or different-case replacement.
AGM or lithium chemistry
Choose a battery chemistry that your bike’s specifications and charging system support. Most options here are sealed AGM or SLA lead-acid batteries, including the ExpertPower, UPLUS, and Daakmax models; TYKOOL and Antigravity offer lithium options. The TYKOOL listing gives a weight of 1.26 pounds, while the Mighty Max YTX4L-BS weighs 2.9 pounds and the UPLUS weighs 4 pounds.
Lithium may appeal to riders seeking lower weight, while AGM offers a familiar replacement format. The listings do not establish that every lithium battery is compatible with every bike’s charging system, so check manufacturer guidance before switching chemistry.
Also follow the selected battery’s charging and storage instructions.
Which Dirt-Bike Battery Should You Choose?
For a modern 250cc or 450cc dirt bike whose original battery matches a listed YTX or YTZ size, choose the Antigravity ATZ5 for its 170 cranking amps and stated replacement fitment. If your priority is low weight and your bike accepts a YTX4L-BS replacement, consider the TYKOOL LFP4L-BS, listed at 1.26 pounds and 140 CCA. For a YTX4L-BS AGM replacement with 120 CCA, the ExpertPower YTX4L-BS is a strong alternative.
The UPLUS EB5-3 offers 80 CCA and a broad listed fitment list; the ZIPPBATTERY YTX4L-BS explicitly names dirt-bike applications. For any option, verify dimensions, polarity, and chemistry against your exact bike before ordering.
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Frequently Asked Questions
How can I confirm a replacement battery fits my dirt bike?
Check your bike’s manual and existing battery for voltage, case dimensions, terminal position and polarity, and required chemistry. Then compare those details with the replacement’s listed fitment. Engine size or a broad application list alone does not confirm compatibility; verify the exact battery size and terminal arrangement before ordering.
Can I replace an AGM dirt-bike battery with a lithium battery?
Yes, if the bike’s electrical system and charging setup are compatible with that lithium battery. Confirm the replacement’s voltage, dimensions, terminals, polarity, and listed fitment, and check the bike and battery maker’s guidance on lithium use. Do not assume an AGM replacement size guarantees a suitable lithium substitute.
What should I do if my dirt bike battery repeatedly goes flat?
Charge the battery with equipment appropriate for its chemistry, then check the connections and the bike’s charging system for problems. If it goes flat again, look for an electrical drain while the bike is off or have the battery and charging system checked. Repeatedly recharging without finding the cause may not resolve it.
What do CCA ratings tell me when comparing batteries?
CCA, or cold-cranking amps, indicates a battery’s stated starting-current capability under cold conditions. The listed options here range from 50 to 180 CCA, but a higher number alone does not establish fit or suitability. Match the battery to your bike’s requirements and confirm its case size and terminals.
Does terminal polarity matter when choosing a replacement?
Yes. The positive and negative terminals must match your bike’s cable arrangement; a battery with the wrong polarity may not connect correctly. Check the terminal layout on your existing battery and compare it with the replacement listing before ordering.
Also verify terminal style, since some listings specify a particular terminal type.
Final Words
For a modern 250cc or 450cc dirt bike whose original battery matches a listed YTX or YTZ size, the Antigravity ATZ5 is the leading choice in this roundup for its 170 cranking amps and stated replacement fitment. Consider the TYKOOL for a listed YTX4L-BS lithium option, or the ExpertPower for a 120 CCA AGM replacement. Before choosing any battery, confirm exact dimensions, polarity, terminals, and chemistry against your bike.
