12.8V 20ah Lead Acid Replacement Lithium Ion Battery Factory Sales

12.8V 20ah Lead Acid Replacement Lithium Ion Battery Factory Sales. Ultra Long Cycle Life:100% DOD > 2000 times; 50% DOD > 5000 times, reducing replacement costs. Lightweight Design:Only 40% the weight of lead-acid batteries of the same capacity, easy to transport and install, direct replacement without changing brackets. High Power Output:High-rate continuous discharge, stable power supply for high-power devices. Wide Temperature Adaptation: optional heating film for extreme cold areas. High Safety LFP Chemistry:Built-in BMS, protects against overcharge / overdischarge / overcurrent / overtemperature / short circuit, no risk of fire or explosion. IP65 Full Waterproof:Waterproof and dustproof, suitable for outdoor, marine, and camping in harsh conditions; removable cover for BMS replacement without compromising waterproofing. Intelligent Bluetooth BMS APP Monitor:Check voltage, remaining power, and charge/discharge status on your phone, optional LCD screen for real-time readings. Flexible Connection:Supports series and parallel connections, expandable to 24V/36V/48V energy storage systems.