Buggies Gone Wild Golf Cart Forum - View Single Post - Batteries

cgtech · 11-16-2013, 01:05 AM

This is actually a parallel configuration described above. One lower capacity battery has minimal effect on charging the rest, because the others will stabilize the max voltage and prevent the weak one from skyrocketing voltage. They will settle to an identical voltage shortly after the cables are hooked up. Although, a weak,or sulphated battery would reveal itself in a day or two after disconecting all the cables (voltages of weak batts will begin to drop). A series configuration goes (+,-,+,-,+,-), the voltage adds up. In a Series configuration, a weaker or mismatched capacity battery is a much bigger deal. A weaker mismatch battery voltage will skyrocket while charging in Series configuration, further damaging the weaker battery, AND the good ones because they will be undercharged.

For example:
Series = (3x 12v,300cca = 36v, 300cca)

Parallel = (3x 12v,300cca = 12v, 900cca)

11-16-2013, 01:05 AM	#6
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: Batteries - Keeping LOTS of batteries charged This is actually a parallel configuration described above. One lower capacity battery has minimal effect on charging the rest, because the others will stabilize the max voltage and prevent the weak one from skyrocketing voltage. They will settle to an identical voltage shortly after the cables are hooked up. Although, a weak,or sulphated battery would reveal itself in a day or two after disconecting all the cables (voltages of weak batts will begin to drop). A series configuration goes (+,-,+,-,+,-), the voltage adds up. In a Series configuration, a weaker or mismatched capacity battery is a much bigger deal. A weaker mismatch battery voltage will skyrocket while charging in Series configuration, further damaging the weaker battery, AND the good ones because they will be undercharged. For example: Series = (3x 12v,300cca = 36v, 300cca) Parallel = (3x 12v,300cca = 12v, 900cca)