WattCycle 12V 100Ah Mini LiFePO4 Battery

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Compact】9.01 x 5.14 x 8.18 inches
Safe】Low-temperature cut-off protection
Premium】EV grade A+ LiFePO4 cells
Durable】4,000-20,000 deep discharge cycles
Reliable】Built-in 100A BMS | 1280W | 1280Wh
Scable】Expandable max 4S4P, up to 20.48kWh

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WattCycle 12V 100Ah Mini LiFePO4 Battery



  • Mini Size, Maximum Power: WattCycle 12V 100Ah mini LiFePO4 lithium battery offers an 11% weight reduction and a 39% volume reduction compared to the Group 24 regular style, while its energy density has increased to an impressive 195wh/L!
  • Cutting-edge technology: Manufactured by EVE, a high-end lithium battery brand, the Grade A+ cells in our 12 volt battery ensure a lifespan of up to 10 years, withstand up to 20,000 cycles, and support a 4S4P configuration with a capacity of up to 20.48kWh.
  • More Compact: This lithium battery weighing only 20.94lbs and measuring 9*5.4*8.2 inches, this means it's easier to carry. With the same battery storage space, you can accommodate more batteries, providing you with more power for your outings.
  • Low-Temp Protection: The WattCycle 12V 100Ah LiFePO4 battery operates in a wide temperature range (-4℉ to 158℉ / -20℃ to 70℃). It automatically shuts off at low temperatures, ensuring maximum battery protection and performance in diverse environments.
  • Smart 100A BMS: The built-in Battery Management System (BMS) safeguards the 12V 100Ah LiFePO4 battery against overcharge, deep discharge, overload, overheating, low temperatures, and short circuits. The BMS optimizes cell voltage balance, enhancing overall battery efficiency.
  • High load capacity: This 100Ah LiFePO4 battery can deliver a pulse discharge of up to 3C, allowing for a current output of up to 300A for 5 seconds and 200A for 2 minutes. This makes it suitable for applications requiring bursts of power.
  • Support & 5-Year Warranty: We are committed to providing excellent customer support and offer a comprehensive 5-year warranty with our products, demonstrating our confidence in their quality and lifespan. Our dedicated support team is always available to address any questions or concerns.

Tech Specs

Dimensions 9.01″ (L) x 5.14″ (W) x 8.18″ (H)
Weight 20.8lbs(9.5kg)
Waterproof Rating IP65
Warranty 5 years
Housing Material ABS (Flame Retardant Plastic)
Terminal M8 bolts

Cell Grade A+ LiFePO4 Cells
Nominal Voltage 12.8V
Nominal/Usable Capability 100Ah
Energy 1280Wh
Cycle Life 4,000 cycles at 100% DOD, 15,000 cycles at 60% DOD, 20,000 cycles at 40% DOD
Max Depth of Discharge (DOD) 100%
Max. Expansion (Parallel & Series) 4S4P
Certifications SDS/UN38.3/FCC/CE/ROHS/UL
Internal Resistance ≤40mΩ

BMS 100A
Max. Continuous Output Power 1280W
Max. Continuous Charge Current 100A
Max. Continuous Discharge Current 100A
Max. Discharge Current 5 Seconds 300±50A (3-5 Seconds)

Charge Voltage 14.6V ± 0.2V
Charge Method CC/CV
Recommend Charge Current 20A (0.2C)
Charge Temperature 0℃ to 50℃ / 32℉ to 122℉
Discharge Temperature: -20℃ to 70℃ / -4℉ to 158℉
Storage Temperature -10℃ to 50℃ / 14℉ to 122℉
Low-Temperature Protection Yes (32℉/0℃)
Low-Temperature Charging Protection Auto Recovery Yes (41℉/5℃)



Frequently asked questions

Can’t find what you’re looking for? Contact us at:

Q1: What is the workflow of a Battery Management System (BMS)?

Overcharge Voltage Cut-off (>15V):
If the voltage of a single cell exceeds the specified threshold during charging, the BMS will stop charging.

Over-discharge Voltage Cut-off (<8.8V):
If a single cell falls below the specified threshold, when the battery voltage drops below 8.8V, the BMS will prevent further discharge. The battery will automatically reconnect when the voltage recovers to 10.8V.

High Temperature Charging (>158°F/70°C) and Discharging (>167°F/75°C):
If the internal temperature of the battery reaches 158°F (70°C), the BMS will not allow charging.
If the internal temperature of the battery reaches 167°F (75°C), the BMS will not allow discharging.

Low Temperature Charging (<32°F/0°C) and Discharging (<-4°F/-20°C):
The BMS will not allow charging below 32°F (0°C), but will continue discharging down to -4°F (-20°C).

Note: The operating temperature range for WattCycle 12V series products is -4°F (-20°C) to 140°F (65°C).

Q2: How to Check Battery Voltage?

If you don't have a battery monitor, you can use a multimeter to monitor the voltage.

Q3: The battery is at 0V, what should I do?

This is likely due to the overcurrent or short circuit protection being triggered. Please disconnect the battery cables from the load and test the battery voltage.

- If the voltage is above 10.8V, reconnect the battery cables.
- If the voltage is below 10.8V, please contact our technical team at

Q4: What is the warranty process?

We offer free warranty service for up to 5 years.
Note: After purchasing the battery, please register for warranty on our official website immediately.
Failure to register within one month will be considered as waiver of warranty service.
For more information, you can click here.

Q5: How can l get my battery capacity?

Battery capacity can be roughly estimated by the following voltage method.
Test steps:
1. Disconnect the charger or load.
2. Let it sit for 15 minutes.
3. Test the open circuit voltage.

Q6: Can WattCycle 12V 100Ah MINI LiFePO4 Battery batteries be used in humid environments?

WattCycle 12V 100Ah MINI LiFePO4 Battery batteries adopt a sealed packaging design and waterproof casing, and the sealed positive and negative electrodes can achieve IP67 protection.
This allows you to use it in humid environments.
In order to give the battery a better service life, we recommend that you use it in a dry, ventilated and cool environment.

Q7: Are WattCycle 12V 100Ah MINI LiFePO4 Battery batteries fire-proof?

Lithium batteries are generally not fireproof. Then, WattCycle takes a series of safety measures during design and use to prevent fire or explosion. These measures include using fireproof materials to construct battery cases (non-flammable ABS plastic), using battery management systems to monitor battery status, and using fuses and other measures to prevent overcharge or over discharge.

Q8: What is the difference between WattCycle 12V100Ah MINI and WattCycle 12V100Ah?

WattCycle 12V100Ah MINI is slightly smaller than WattCycle 12V100Ah, but the performance of the two is exactly the same.

Q9: Can I use the G24 battery case?

Dimensions of a G24 battery box are approximately 10.5 inches long (L), 6.19 inches wide (W), and 8.88 inches tall (H).
And the size of a WattCycle 12V 100Ah MINI LiFePO4 Battery is about 9.01″ (L) x 5.14″ (W) x 8.18″ (H).
It is completely possible to use the G24 battery box to install the WattCycle 12V 100Ah MINI LiFePO4 Battery.

Q10: Can I use the WattCycle 12V 100Ah MINI LiFePO4 Battery to charge my RV?

WattCycle 12V 100Ah MINI LiFePO4 Battery lithium battery can be used for RV backup power. It has high energy density and long cycle life, providing long-lasting power support and suitable for various power needs of RVs, such as lighting, electrical equipment and other electronic equipment. Lithium batteries are lighter, charge faster, and have a longer life than traditional lead-acid batteries, making them ideal for RV backup power.

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