2 series 7.4V 8.4V 18650 lithium battery protection board with equalisation 20A current

Lithium battery (rechargeable) the reason why the need for protection, is determined by its own characteristics due to the lithium battery itself, the material determines that it can not be over-charged, over-discharge, over-current, short-circuit and ultra-high-temperature charging and discharging, so the battery lithium components will always be followed by a protection board to monitor the state of the battery, the battery charging to 4.2V or so to stop charging, the battery voltage is lower than 2.75V or so to stop discharging, limiting the output current in the 20A, output short circuit to stop discharging, delayed self-recovery, intelligent control of charging current to prevent damage to the battery, which can greatly improve the service life of lithium batteries, - Equalisation charging, referred to as equalisation charging, is to equalise the charging of battery characteristics, refers to the use of batteries, due to the battery's individual differences, temperature differences, and other reasons resulting in the imbalance of the battery terminal voltages, in order to avoid the deterioration of this imbalance tendency, it is necessary to In order to avoid the deterioration of this imbalance, it is necessary to increase the charging voltage of the battery pack and activate the charging of the batteries, so as to achieve the balancing of the characteristics of each battery in the battery pack and extend the life of the battery maintenance method.

Product Parameter

Name:2 series 7.4-8.4V20A battery protection plate

Product Model:HW-392

Charging voltage:DC84-9V

Continuous discharge current:20A(If the heat dissipation environment is not good, please reduce the load current to use)

Continuous charging current:Maximum 10A Product size:48*18*3.5mm(standard version)Applicable options:Suitable for nominal voltage 3.7V, fully charged 4.2V batteries (including 18650, 26650, polymer batteries), with a starting current of 25A, the power of 50W below the drill, or 168W resistive loads.

Note

Successful start of the drill requires two 10C-20cd power batteries, or four 5C-10C power batteries (recommended power battery models: Sonyvtc4svtc4Avtc5, vtc6) 0V and 8.4V connecting wires, using more than 2 square millimetres of copper wire (can not be used to shackle).

The first time you weld the battery needs to be charged before the output, strictly according to the diagram wiring 0V, 4.2V, 8.4V, welding line can not touch any components on the board, do not intentionally short circuit.