The WattCycle LiFePO4 12V 100Ah 2 PACK combines Grade A+ lithium iron phosphate cells with a robust 100A BMS, ensuring high energy density, thermal stability, and 4000+ cycles. Its series/parallel flexibility allows voltage or capacity scaling, ideal for solar, marine, and off-grid systems. Safety certifications and low self-discharge (3% monthly) enhance reliability.
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How Does the BMS Optimize Battery Performance?
The integrated 100A Battery Management System (BMS) monitors voltage, temperature, and current. It prevents overcharge, over-discharge, and short circuits while balancing cell voltages. This extends lifespan by 30% compared to non-BMS lithium batteries. Real-time data via Bluetooth enables remote monitoring, ensuring optimal performance in extreme conditions (-20°C to 60°C).
The BMS employs adaptive charging algorithms that adjust input based on temperature readings. When detecting a cell imbalance exceeding 30mV, it redistributes energy at 2A balance current. This precision reduces stress on individual cells, maintaining pack uniformity. The system also features three-stage protection:
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- Soft shutdown at 14.6V (overcharge)
- Current limitation at 120% rated load
- Full disconnect at -20°C to prevent irreversible damage
| BMS Feature | Specification |
|---|---|
| Balance Current | 2A ±0.2A |
| Overcharge Threshold | 14.6V ±0.05V |
| Low-Temp Cutoff | -20°C ±2°C |
These technical safeguards enable the battery to maintain 98% charge acceptance even after 1,000 cycles, outperforming conventional BMS designs.
What Maintenance Is Required for These Batteries?
Zero maintenance. Unlike lead-acid, no watering or equalization is needed. The BMS auto-balances cells every cycle. Storage recommendations: 50% charge at 25°C for long-term inactivity. Self-discharge reaches 15% after six months, recoverable via a single recharge.
For optimal performance, users should perform annual capacity verification using the Bluetooth app. The system generates cycle reports showing cell voltage deviations and capacity retention. If storing beyond 12 months, partial discharges to 30% SOC are recommended to minimize electrolyte stress. Unlike AGM batteries that require monthly topping charges, WattCycle’s LiFePO4 chemistry remains stable in partial states of charge.
LiFePO4 Batteries for Solar Marine
| Parameter | LiFePO4 | Lead-Acid |
|---|---|---|
| Equalization Needed | No | Monthly |
| Storage Temp Range | -10°C to 35°C | 5°C to 25°C |
| Recharge Interval | 12 months | 6 weeks |
The aluminum alloy casing requires only occasional wiping with a dry cloth. Terminal corrosion – a common issue with lead-acid systems – is eliminated through nickel-plated copper connectors.
“WattCycle’s use of top-tier cells and adaptive BMS sets a benchmark. The 100A continuous discharge supports high-demand applications like trolling motors or inverters without voltage sag. Its modular design future-proofs systems—users can expand capacity incrementally without compatibility hassles.”
– Energy Storage Engineer, Lithium Power Solutions
FAQ
- Q: Can I use these batteries for a 3000W inverter?
- A: Yes. Two packs in parallel (200Ah) support 3000W inverters (250A draw). The 100A BMS per battery handles peak surges up to 200A for 3 seconds.
- Q: What warranty is provided?
- A: 5-year warranty covering capacity below 80% or BMS faults. Requires annual capacity tests uploaded via the app.
- Q: Is Bluetooth connectivity secure?
- A: Yes. AES-256 encryption protects real-time data. Pairing requires physical button press, preventing unauthorized access.