The LISHEN 202Ah LiFePO4 battery offers a 3.2V cell that can be configured into 12V, 24V, or 48V systems using 4–16 cells. Ideal for DIY energy storage in RVs, EVs, boats, and solar setups, it provides 200Ah capacity, 4,000+ cycles, and superior thermal stability. Its modular design enables scalable, lightweight, and maintenance-free power solutions.
What Is a 7.4V LiPo Battery and How Does It Work
What Are the Key Specifications of the LISHEN 202Ah LiFePO4 Battery?
The LISHEN 202Ah cell operates at 3.2V with a 200Ah capacity, 640Wh energy per cell. It supports 4,000–6,000 cycles at 80% depth of discharge (DoD) and weighs 4.2kg. Operating temperatures range from -20°C to 60°C. Cells can be wired in series (for voltage) or parallel (for capacity) to create 12V (4 cells), 24V (8 cells), or 48V (16 cells) systems.
| Parameter | Specification |
|---|---|
| Nominal Voltage | 3.2V |
| Cycle Life (80% DoD) | 4,000–6,000 cycles |
| Weight per Cell | 4.2 kg |
| Charge Temperature | 0°C–45°C |
How to Configure 3.2V Cells for 12V, 24V, or 48V Systems?
For a 12V system, connect 4 cells in series (3.2V x 4 = 12.8V). For 24V, use 8 cells (2 parallel sets of 4 in series). A 48V setup requires 16 cells (4 parallel sets of 4 in series). Always use a BMS to balance cells and prevent overcharge/discharge. Busbars and cabling must handle peak currents (e.g., 200A for 200Ah).
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When configuring multiple cell groups, ensure uniform wire lengths to maintain balanced resistance. For 24V systems, arrange cells in 4s2p configuration (4 series cells × 2 parallel groups). Use nickel-plated copper busbars instead of steel to minimize voltage drop. For high-current EV applications, implement two-layer busbar designs with 10mm² minimum cross-section. Always test series connections with a voltmeter before connecting parallel groups—a single reversed cell can cause catastrophic current reversal during charging.
DEESPAEK 12V 200Ah LiFePO4 Battery for RV, Solar, and Trolling Motor Use
| System Voltage | Cell Configuration | Total Capacity |
|---|---|---|
| 12V | 4S (4 in series) | 200Ah |
| 24V | 8S2P | 400Ah |
| 48V | 16S4P | 800Ah |
What Safety Features Are Critical for DIY LiFePO4 Systems?
A BMS (Battery Management System) is mandatory to monitor cell voltage, temperature, and current. LiFePO4’s inherent stability reduces fire risk, but cells must be housed in non-conductive, ventilated enclosures. Use UL-listed fuses, anti-spark connectors, and thermal cutoff switches. Avoid puncturing cells or exposing them to water. Test configurations with a multimeter before full assembly.
Opt for BMS units with active balancing (≥500mA balance current) rather than passive systems. Install temperature sensors on at least 25% of cells, focusing on central positions in large packs. For marine applications, use IP67-rated battery boxes with pressure relief vents. Implement a main disconnect relay that triggers at 2.5V under-voltage or 3.65V over-voltage thresholds. In mobile installations, include vibration-damping mounts—LISHEN cells tolerate 5G vibration but sustained shocks degrade internal connections.
“The LISHEN 202Ah cells are a game-changer for DIYers. Their energy density and cycle life outperform 90% of retail LiFePO4 packs. However, a quality BMS is non-negotiable—cheap units fail to balance high cell counts, leading to premature degradation. Always oversize your system by 20% to account for real-world capacity loss over time.” — Renewable Energy Systems Engineer
FAQs
- Can I Mix LISHEN Cells with Other Brands?
- No. Mixing cells of different capacities, ages, or brands causes imbalance, reducing lifespan and capacity. Use identical cells from the same production batch.
- Does Cold Weather Affect Performance?
- Below 0°C, charging efficiency drops. Use self-heating cells or insulated enclosures in freezing climates. Discharging works down to -20°C.
- Are These Batteries Compatible with Tesla Powerwall Inverters?
- Yes, if configured to 48V. Ensure the BMS communicates with the inverter via CAN bus or RS485. Voltage ranges must align (e.g., 44V–58V for 48V systems).