Posts: 941
Location: Freedom, WI | Jono is right. I am a heavy equipment mechanic and a new and old battery in a 24V system will shorten the life of the new battery. It is not as big a deal in 12v parallel system but it will shorten the life also. If the old battery is not to old it would probably be ok. If you mix new and old make sure you charge them separatly as the battery charger (automatic ones) will go off of the higher charged one (which would be the new one)or use an on board duel bank charger. All lead acid batterys sulfate over time and use until they can not hold a charge. I have had good batterys last 12 years (not deep cycle) and cheap ones 2 years. |
