4S 12V 100A BMS for LiFePO4 Battery with 1A Active Balancer

Tired of battery failures, unbalanced cells, and unreliable BMS boards ruining your solar or EV setup? The amiciKart 4S 12V 100A BMS with 1A Active Balancer is engineered to keep your LiFePO4 pack safe, balanced, and performing at its peak — for years.

This is a high-current, intelligent BMS built specifically for 4S LiFePO4 battery packs (12V nominal). It handles a continuous 100A charge and discharge, making it suitable for demanding applications like solar energy storage, electric vehicles, inverter backup systems, and high-load industrial setups. What sets it apart is the built-in 1A Active Balancer — unlike passive balancing BMS boards that waste energy as heat, the active balancer redistributes charge between cells, resulting in more uniform cell voltages, better capacity utilisation, and a significantly longer battery lifespan.

Protection is multi-layered and precision-tuned for LiFePO4 chemistry: overcharge cutoff at 3.65V per cell, over-discharge cutoff at 2.05V per cell, plus overcurrent, short-circuit, and automatic temperature protection. The ultra-low standby draw of just 50µA (active) / 25µA (sleep) ensures your battery isn't silently drained during idle periods. Whether you're a DIY battery builder, solar installer, or EV enthusiast, this BMS gives you professional-grade reliability at an accessible price point.

Backed by a 1-year warranty and dedicated Indian support via WhatsApp, call, or email — amiciKart stands behind every unit. Ships with free delivery across India, same-day dispatch on orders before 2 PM, and COD available.

• 🔋 Handle Heavy Loads Confidently — Supports continuous 100A charge & discharge, perfect for 4S 12V LiFePO4 packs in solar systems, EVs, inverters & high-draw setups
• ⚖️ Extend Battery Life with Active Balancing — Built-in 1000mA active balancer keeps all cells at uniform voltage, delivering better efficiency & longer pack lifespan than passive BMS boards
• 🛡️ 5-Layer Protection Built In — Guards against overcharge (3.65V cutoff), over-discharge (2.05V cutoff), overcurrent, short circuit & extreme temperatures for worry-free operation
• 💤 Ultra-Low Standby Drain — Consumes just 50µA during operation and 25µA in sleep mode, so your battery stays topped up even during long idle periods
• 🌡️ Smart Temperature Cut-Off — Automatically pauses charging/discharging in extreme heat or cold, preventing thermal damage and keeping your battery safe year-round
• ✅ 1-Year Warranty with Dedicated Indian Support — Reach the amiciKart team via WhatsApp, call or email (📞 980-970-9898 | ✉️ care@amicikart.com) for fast, local assistance
• 🚚 Free Pan-India Shipping | Same-Day Dispatch (Orders Before 2 PM) | COD Available | 30-Day No-Questions-Asked Returns