Freak Engineer 4S2P 12.8V 12AH LIFEPO4 Battery with 20A BMS

The Freak Engineer 4S2P 12.8V 12Ah LiFePO4 Battery with 20A BMS is a high-performance rechargeable lithium iron phosphate battery designed for reliable and long-lasting power delivery. Built in a 4S2P configuration, this battery provides a 12.8V nominal voltage, 12Ah capacity, and 153.6Wh energy output, making it ideal for robotics, solar systems, emergency backup, portable electronics, CCTV systems, and DIY battery-powered projects. A built-in 20A Battery Management System (BMS) protects the battery against overcharging, over-discharging, over-current, and short circuits, ensuring maximum safety and extended battery life. LiFePO4 chemistry offers superior thermal stability, lightweight construction, and over 2000 charge-discharge cycles, making it an excellent replacement for traditional lead-acid batteries.

Key Features

• 12.8V nominal voltage with 12Ah capacity
• 4S2P LiFePO4 cell configuration
• Built-in 20A BMS for complete battery protection
• High safety and thermal stability
• Long cycle life of over 2000 charge cycles
• Lightweight compared to lead-acid batteries
• Low self-discharge for longer storage life
• Fast charging capability
• Maintenance-free operation
• Stable voltage output for consistent performance
• Environment-friendly LiFePO4 chemistry

Applications

• Solar energy storage systems
• Robotics and automation projects
• CCTV and surveillance backup
• Portable power supplies
• LED lighting systems
• Electric sprayers
• Fish finders and portable electronics
• Medical and laboratory equipment
• DIY battery packs
• Industrial backup power systems

Specifications

• Brand: Freak Engineer
• Battery Chemistry: Lithium Iron Phosphate (LiFePO4)
• Configuration: 4S2P
• Nominal Voltage: 12.8V
• Rated Capacity: 12Ah
• Energy: 153.6Wh
• Built-in BMS: 20A Protection Board
• Charging Voltage: 14.6V
• Cycle Life: 2000+ Cycles
• Rechargeable: Yes
• Protection Features: Over-charge, Over-discharge, Over-current, Short-circuit, Cell Balancing
• Maintenance: Maintenance Free

Package Includes

• 1 × Freak Engineer 4S2P 12.8V 12Ah LiFePO4 Battery with 20A BMS

Advantages

• Longer lifespan than lead-acid batteries
• Consistent voltage throughout discharge
• Lightweight and compact
• High safety with integrated BMS
• Excellent performance in solar and backup applications
• Reliable power output for high-current devices

Safety Instructions

• Use only a 14.6V LiFePO4 charger.
• Do not short-circuit or puncture the battery.
• Keep away from fire and excessive heat.
• Store in a cool, dry place when not in use.
• Avoid discharging below the BMS cutoff voltage