Been holding 13.8 V on a 12V 5Ah AGM battery. Been on for a week at that voltage. Immediately upon disconnection from the power source the battery voltage reads 11.88 V. When charging current (if we can call it that) is 5 mA. This battery is probably beyond recovery. Question - is there a way to make the battery draw more current without putting the battery, charger - or the house in danger?