[DALY BMS]Overcurrent,Overcharge,Overdischarge,Short circuit, Temperature protection.DALY BMS maximizes optimizes the lithium battery performance, and extends the battery lifetime to a large extent. [Double Protection]Double protection by injection patent technology and patent shell.Waterproof,dustproof,shockproof and anti-static;High-quality components, pressure-resistant and durable material, high acquisition accuracy.Easy to install. [Smart BMS]Check battery status and modify parameters at any time through Bluetooth app or PC Software.Quality Guarantee--- ISO/ FCC/ RoHS/ PSE/ CE APPROVED [Note] If you need active balancer, parallel module or other accessories, please contact online customer service.We offer 24-hour one-on-one customer service and lifetime technical support [Packing List]3.7V Li-ion BMS*1,Bluetooth Module*1,NTC sensor*1,Sampling cable*1,Uart cable*1,Instruction Manual*1. Dongguan Daly Electronics Co., Ltd. was established in 2015, integrating R & D, production and sales, and specilizing in the production of lithium battery protective boards, such as LiFePO4 BMS, NMC BMS, LTO BMS, which can be used to energy storage, electric vehicles, electric tools, electric wheelchairs, AGVs, and forklifts, etc. The specifications of Daly BMS are 3S – 32S, 12v-120v, and 5A-500A. Smart BMS, BT, UART, RS503, can, LCD and GPS are very popular in Europe, Asia and North America.If you need a customized BMS or bulk order, please feel free to contact us!