Reliability, Durability, and Longevity: Redefined
FIRST 1280WH Lithium Battery delivers uninterrupted power to keep you going!
This 12V LiFePO4 (Lithium Iron Phosphate) battery, with an impressive 12.8V 100Ah capacity, ensures extended runtime and consistent performance, allowing you to enjoy a smooth and worry-free experience on the water.
Trust LI FIRST to power your adventures, wherever the waves may take you!
LI FIRST 12V 100Ah LiFePO4 Battery – Your Reliable Power Solution!
- 4000 Deep Cycles: With up to 4000 charge and discharge cycles, this battery offers long-lasting performance compared to traditional batteries.
- 1C Fast Discharge: Whether for high-power demands or everyday use, the battery delivers fast and safe energy output.
- 4P4S Expandability: Easily scale your battery system by connecting in series or parallel, perfect for a variety of applications.
- 10-Year Lifespan: Outlasts lead-acid batteries by up to 8 times! Save on replacement costs and enjoy eco-friendly, long-term use.
- 5-Year Warranty: We’ve got you covered with a 5-year warranty, providing peace of mind and reliable performance.
- Advanced BMS Technology: Equipped with a cutting-edge Battery Management System to ensure safe and stable operation in all conditions.
- 7 Layers of Protection: Comprehensive safety features protect against overcharge, discharge, short-circuit, and more to keep your devices running smoothly.
Power your adventures or everyday needs with confidence—choose LI FIRST for top-notch performance and durability!
Why Choose LI FIRST – Power You Can Trust!
- Own Factory & Professional Production Base: We control every step of the process with our own factory, ensuring top-tier quality and reliable performance.
- U.S. Local Warehouse: Fast, efficient delivery with our local U.S. warehouse, getting your products to you quicker than ever.
- 24-Hour Customer Support: We’re here when you need us! Our dedicated team responds within 24 hours to answer any questions or concerns.
- Comprehensive Certifications: Our products are backed by internationally recognized certifications, ensuring safety, quality, and compliance with global standards.
Specs
Battery
| Cell Type | LiFePO4 Prismatic |
| Warranty | 5 Years |
| Cycle Life | 4000 cycles at 100% DOD, 6000 cycles at 80% DOD, 15,000 cycles at 60% DOD |
| Nominal Voltage | 12.8V |
| Reted Capacity | 100Ah |
| Energy | 1280Wh |
| Max. Expansion (Parallel & Series) | 4P4S |
| Internal Resisrance | ≤40mΩ |
| Certification | FCC, CE, ROSH, MSDS, UN38.3 |
BMS
| BMS | 100A |
| Max. Continuous Output Power | 1280W |
Max. Continuous Charge Current | 100A |
Max. Continuous Discharge Current | 100A |
Max. Discharge Current 5 Seconds | 280A |
CHARGE
| Charge Method | CC/CV |
| Charge Voltage | 14.4V ± 0.2V |
Recommend Charge Current | 20A (0.2C) |
TEMPERATURE
| Charge Temperature | 0℃ to 50℃ / 32℉ to 122℉ |
| Discharge Temperature | -20℃ to 60℃ / -4℉ to 140℉ |
Storage Temperature | -10℃ to 50℃ / 14℉ to 122℉ |
OTHERS
| Terminals | M8 bolts |
Weight Approx. | 24.25 lbs |
Size | L13*W6.77*H8.43 inch (Group 31 equivalent) |
Housing Material | ABS |
Protection Class | IP65 |
FAQ
The group 31 batteries is the most popular battery size, measuring approximately L13* W6.8* H9.44 inch, which is widely used in boats, RVs, home storage, and off-grid. LIFIRST 12V 100Ah deep cycle LiFePO4 battery measures L13* W6.77* H8.43 inch. It is a perfect replacement for group 31 batteries.
LIFIRST 12V 100Ah lithium battery is a powerful replacement for group 31 batteries due to its larger capacity than traditional AGM or Lead Acid group 31 batteries. It has a 100Ah capacity and 1280Wh energy, leaving you peace of mind to handle various situations.
The LI FIRST 12V 100Ah LiFePO4 batteries can be safely charged between 0°C to 50°C (32°F to 122°F). But when charging under the freezing point, the battery cells may be damaged.
It is recommended to store LI FIRST LiFePO4 batteries at 50% state of charge (SOC). If the batteries are stored for long periods, recharge the batteries at least every 3 months. Recommended storage environment: 10℃～35℃ (50℉～95℉), 45%RH～75％RH
The maximum number of connecting LI FIRST 12V 100Ah lithium batteries in series or parallel is 4 (4S or 4P). Please notice that the LI FIRST lithium batteries can ONLY be connected in series or parallel with the same brand (LI FIRST), same type (lithium), same voltage (V), same capacity (Ah), same BMS and similar purchasing date (within 3-6 months).
The LI FIRST 12V 100Ah LiFePO4 lithium battery has a maximum continuous discharge of 100Ah and a maximum discharge of 280Ah for 5 seconds.
Our batteries are waterproof to IP65
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