Hi...can any one please help me with this problem?...I have a battery in consideration..It is an DC Acid Lead Sealed Gel battery..12V DC..the amps per hour is 4Ah....what i want to do is when the battery is being charged..how can i find that out using a comparator when the battery is fully charged and when it is, switch the incoming supply to a Dump(some load)....If you want more details about the project let me know...thanks in advance mates