Charging voltage for T-105s
Continuing my quest to learn everything I can about batteries and charging... Moved on from the group 24 Interstate, may mess with it more later. Also put the hydrometer with the floating balls whe...
Forum Discussion
When Mex gives you battery charging instructions, and was a consultant for the battery industry as his profession, and you aren't paying a fee for the service received... unless you know more than him, why would you question him?
Do what he says, then get back to us, if it works, or it doesn't.
Or just go buy a good battery hydrometer with a glass tube, dip the cells, and get back to us when all of them read 1.275 to 1.280 or so. Then you can forget the timer... specific gravity equality among all cells is all that matters, it takes how ever long, at whatever voltage that it takes to get there. Getting a 12.0V battery to take 16.0V at 5% current charge rate in amps gets it done, then your voltage going in drops off. Monitor either battery acid, or when the voltage starts to drop off from 16.0V at 5% and call it a day.
Or better yet, use the search function.
I got almost 2 years worth of additional service out of a very beat up Trojan T-1275 that the golf course people had left for dead after about 600 days of service daily in a golf cart here in CA, where folks play golf 365 a year. I followed Mex's and BFL's suggestions... they worked for me, I suspect they will work for you also, as T-105's are one of the most forgiving batteries out there to recharge and maintain.
Do what he says, then get back to us, if it works, or it doesn't.
Or just go buy a good battery hydrometer with a glass tube, dip the cells, and get back to us when all of them read 1.275 to 1.280 or so. Then you can forget the timer... specific gravity equality among all cells is all that matters, it takes how ever long, at whatever voltage that it takes to get there. Getting a 12.0V battery to take 16.0V at 5% current charge rate in amps gets it done, then your voltage going in drops off. Monitor either battery acid, or when the voltage starts to drop off from 16.0V at 5% and call it a day.
Or better yet, use the search function.
I got almost 2 years worth of additional service out of a very beat up Trojan T-1275 that the golf course people had left for dead after about 600 days of service daily in a golf cart here in CA, where folks play golf 365 a year. I followed Mex's and BFL's suggestions... they worked for me, I suspect they will work for you also, as T-105's are one of the most forgiving batteries out there to recharge and maintain.
