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【Automatic connection】 Then the automatic connection to the charger to the storage batteries 【Battery Module】 The is an undervoltage switching module used for automatic coupering of the power supply of the in the event of a voltage drop below a set value. 【Automatic Charging】 When the voltage of the batteries attuned to a valid definition, the module will automatically reactivate charging and stop charging the batteries. 【LED】 The battery module card is provided with LED indications to indicate if the is on or off 【Adjustable】 The tension values of the tension and the lighting can be adjusted simply by adjusting the potentiometer