CELLWATT™ 12V 4Ah Lithium Iron Battery

Cellwatt 12V 4Ah lithium iron battery with a built-in BMS for compatible emergency lights, small solar setups and UPS systems.

Check device voltage, battery dimensions, connector and charging requirements before ordering.

Next-Gen Safety with a Built-in BMS

At the core of the Cell Watt 12V battery is a smart, integrated Battery Management System (BMS). The BMS works continuously behind the scenes to maximize the battery's lifespan and ensure absolute safety by automatically protecting against:

• Over-charging and over-discharging
• Short circuits and accidental polarity reversal
• Thermal overloads and overheating

With over 2,000+ complete charge cycles, this battery outlasts traditional SLA batteries by up to 10 times, giving you years of worry-free, maintenance-free operation.

Consistent Power, Half the Weight

Unlike old lead-acid batteries that lose strength as they drain, our Lithium Iron chemistry maintains a flat voltage curve. Your devices receive full, steady power right until the very last drop of capacity. Best of all, it packs all this performance into a lightweight, ultra-compact frame that is easy to install anywhere.

Ideal Applications:

• Emergency lighting, LED lanterns, and portable searchlights
• Small solar power setups and off-grid backups
• 12V DC home UPS systems and router backups
• Security systems, burglar alarms, and fire panels
• Electronic testing equipment and DIY electronics projects

Key Technical Specifications

• Brand: Cell Watt
• Voltage: 12V
• Capacity: 4Ah
• Chemistry: Advanced Lithium Iron
• Safety Feature: Built-in Smart BMS Protection
• Lifespan: 2,000+ Cycles (100% Depth of Discharge)
• Design: Maintenance-free, spill-proof, and lightweight