Charging voltage: 16.8V - 18.1V Continuous charge current (upper limit): 20A Scope: Nominal voltage of 3.7V lithium battery (including 18650,26650, polymer lithium battery) Package includes: 1*4S 40A Li-ion Lithium Battery Protection Board Note: 1. To successful starting the drill requires three 15C-20C power batteries, or eight 10C-15C power batteries (ordinary 18650 battery can not start the drill!!). 2. When you wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, plese do it strictly according to the wiring diagram. Do not deliberately make it short circuit. 3. When the battery is charging,the "430" resistance heating is normal,it means the balance circuit is working.If the "430" resistance is also heating without charging,please check if the wrong wire is connected. 4. 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. The The Discharge test, the voltage drop faster battery that group is poor battery.
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