If you hook an old battery to a new battery and put a volt meter on it , you will see the old battery will draw the power out of the new one . By the end of your test the New battery will have drained to the same voltage as old Battery .
Then take 2 new bats and do the same , you will see the volts stay the same approximately 12.70 volts .. Batteries are expensive ,most people dont know the better the charger the longer your bats will last . It is important not to overcharge or undercharge . Most Cart chargers these days (lestronic )have regulators to prevent this . The Chargers with timers are bat killers . Hope this helps ,if you do test; hook batteries in a bank + to + (positive) and - to - (negative)
Last edited by Tim Callanan; 03/24/10 08:50 AM.