BSLBATT 12V 12Ah LiFePO4 Battery – Deep-Cycle SLA/AGM Replacement for Mobility, Solar & UPS (B-LiFePO4-12-12)

The BSLBATT 12V 12Ah is a deep-cycle lithium iron phosphate (LiFePO4) battery built as a direct, plug-and-play replacement for 12V 12Ah sealed lead-acid (SLA), AGM, and gel batteries. A built-in Battery Management System (BMS) protects against overcharge, over-discharge, short circuit, and overheating, delivering more usable power at a fraction of the weight.

Why upgrade from lead-acid?

• About 60% lighter than an equivalent 12V 12Ah SLA — a big win for mobility devices and portable power.
• Up to 10× longer life — roughly 2,000–5,000 charge cycles vs ~300–500 for lead-acid.
• More usable capacity — discharge deeper than SLA for longer real-world runtime.
• 100% maintenance-free and safe in non-ventilated battery boxes (no acid, no off-gassing).
• Flat voltage curve — runs at full power until nearly empty.

Common uses

Electric wheelchairs and mobility scooters, UPS / battery backup, solar and off-grid storage, alarm and security systems, RV/marine accessory power, and general 12V deep-cycle applications.

Specifications

• Voltage: 12V
• Capacity: 12Ah
• Chemistry: LiFePO4 (lithium iron phosphate)
• Built-in BMS protection
• Cycle life: 2,000–5,000+ cycles

Replacing a lead-acid battery? Match the voltage (12V) and confirm the case size and terminals fit your device. Browse our full LiFePO4 range or read LiFePO4 vs Lead-Acid: Why Lithium Iron Phosphate Is the Upgrade.