Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si 14 string 48V lithium battery protection board Overcharge, over discharge, over current, short circuit and temperature protection With a balance, port 45A discharge With heat sink and 300mm cable Specification: Continuous operating current: 45A or less Charging current: 45A or less Balanced charging: Yes Short circuit protection: Yes Nominal 3.7V batteries/ 14 strings Cable: approx. 300mm/ 11.81 inch Number: li- battery bms pcb Type: Li- colour:Silver Material:Metal + plastic size:120x60x9mm Package Contents: 1 x Battery Protection Board Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.