4S 30A lifepo4 BMS for 12.8v 14.6v 32700 32140 26700

4S 30A LiFePO4 Balanced BMS (12.8V - 14.6V) | Best for UPS & Solar Battery DIY

Upgrade your home power backup with the high-performance 4S 30A LiFePO4 Balanced BMS. This is the ultimate solution for building a 12V Lithium Iron Phosphate battery pack to replace old, heavy lead-acid or dry batteries. Specifically designed to handle Pakistan’s frequent load-shedding, this Balanced Version ensures your cells stay healthy and last for years.

Why this BMS is perfect for Pakistan:

True 12V Replacement: Ideal for converting your UPS or Solar Inverter from lead-acid to Lithium (LiFePO4).

Cell Balancing Technology: Unlike standard versions, this Balanced BMS keeps all 4 cells (32700, 32140, 26700) at the exact same voltage, preventing battery swelling and extending life.

Heat Resilient: Built with high-quality MOS tubes to withstand the high ambient temperatures common in Pakistan.

High Current Support: 30A continuous discharge easily powers DC fans, LED lights, and small-to-medium inverter loads.

Key Features & Protection

Overcharge Protection: Auto-cut at 3.65V per cell to prevent fire hazards.

Deep Discharge Protection: Cuts off at 2.5V to save your cells from permanent damage during long power outages.

Short-Circuit Protection: Instant shut-off in case of wiring errors or appliance faults.

Passive Balancing: Automatically levels the charge across your battery pack during the charging cycle.

Commonly Asked (FAQ for Pakistani Buyers):

Will it work with my 12V Solar Inverter? Yes, it is designed for 12.8V nominal systems.

Can I use it for 32700 cells? Yes, it is specifically calibrated for 3.2V LiFePO4 cylindrical cells.

Is it better than a standard BMS? Yes, the Balanced Version is essential for longevity; without it, one cell may overcharge while others stay empty.

What’s in the box?

1 x 4S 30A Balanced LiFePO4 BMS

1 x 5-Pin Wiring Harness (Balance Wires)