... ,accruate output,AVR function.4.Inner-equipped protection for over-load,short-circuit,over-voltage, ... external battery connection achievable.7.Intelligent battery management with protection against over-charged and over-discharged etc. 2 ... acidRecharge current15A(Maximum)Battery protectionAutomatic self-test,discharge protection,over-charging protected,smart managenment systemDisplayLED/LCDOptional 3 ...