The 19 inches rack standard backup battery is based on Lithium iron phosphate battery, It has been designed to provide backup power for telecom equipment or energy storage system in household. It has excellent safety, high energy density, long lifetime, very nice temperature performance, green power newly of excellent safety and high reliability. Custom capacity is acceptable. High cycle life 4000 cycles @80% DoD for effectively lower total of ownership cost. Longer service life Low maintenance batteries with stable chemistry. Built in circuit protection Battery Management System (BMS) is incorporated against abuse. Better storage Up to 6 months thanks to its extremely low self discharge (LSD) rate and no risk of sulphation. Quickly recharge Save time and increase productivity with less down time thanks to superior charge/discharge efficiency. Extreme heat tolerance Suitable for use in a wider range of applications where ambient temperature is unusually high: up to +60C. Lightweight Lithium batteries provide more Wh/Kg while also being up to 1/3 the weight of its SLA equivalent. Function Support parallel operation