Features: *High quality for professional use. *Made of high quality material, durable and wear-resistant. *5S 18V 21V 30A battery charging protection board lithium battery pack protection circuit board power tool BMS module Specification: *Model: HXYP-5S-B530 *Size:70*50*7mm *Color:as picture show *Product Name:PCB BoardPCB Board *Material:PCB Board *Upper operating current :30A *Upper transient current: 45A *Overcharge range:4.25V0.05V *Over voltage range: 2.8V0.05V *The static current: Less than30uA *Charging voltage: 21V *With equilibrium current:56mA Package Content: 1 * PCB Board with cable Only the above package content, other products are not included. Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.