Charging Module Battery Charging Board with Battery Protection BMS 5v Micro USB 1a Lithium Charge Module(40 Pieces)

Package contents: you will get 40 pieces charging modules, practical tools that can also meet your various needs, enough for you to change and replace.
Functional usages: input voltage is 5V, battery over-discharge protection voltage is 2.5V, battery over current protection current is 3A. Connect the battery to the B+ B-, inserted into the USB female mobile phone charger; the red light indicates charging and the green light indicates full.
Product information: the charging board inputs with micro USB female, can be directly inputed to do with phone charger rechargeable battery, still retains the input voltage wiring pads, convenient for you to DIY.
Charging cut-off voltage: 4.2V,
max charge current: 1000 mA.
Applicable occasions: the battery charging board is suitable for single-cell lithium battery or multi-cell parallel lithium battery charging, and the charging port can be powered from USB, which are convenient for you to operate.
Warm notice: please note that the charge should disconnect the load OUT terminal; the positive and negative can not be wrong, please according to specifications, otherwise it will break directly. The ammeter for testing current can only be connected in series with the 5V input terminal of the charging board