Battery charging regime
Posted: Mon Dec 05, 2011 10:52 am
Hi All,
I am just wondering about a charging regime for my batteries.
I have the twelve Trojan T1275 batteries from EV_Dub as my battery bank.
My plan is to wire these in three 'rows' of four batteries wired in series to get a 48v 450ah pack.
The Trojan information says to charge them at 14.8v for a daily charge, 13.2v float charge and 15.5v equalising charge. (all at 25 Deg C)
The way I want to use this battery bank is very different to an electric car.
Our house power requirement will be around 5kwh per day.
We will be replenishing this with a 'trickle' from a small generator powered by a stirling cycle engine.
I was invisaging this being around 300W and running continuously 24hrs/day 365 days/year.
My plan was to get a big battery pack so we cycle the batteries only lightly to keep the number of available cycles high and the battery life long.
I was wondering if I might be charging the batteries too lightly too? and and at what voltage I should do this at? as it might be part way between a float charge or daily charge.
We will build a small straw bale building for the batteries and keep them at 20 Deg C to keep things stable.
Any thoughts?
Rob
I am just wondering about a charging regime for my batteries.
I have the twelve Trojan T1275 batteries from EV_Dub as my battery bank.
My plan is to wire these in three 'rows' of four batteries wired in series to get a 48v 450ah pack.
The Trojan information says to charge them at 14.8v for a daily charge, 13.2v float charge and 15.5v equalising charge. (all at 25 Deg C)
The way I want to use this battery bank is very different to an electric car.
Our house power requirement will be around 5kwh per day.
We will be replenishing this with a 'trickle' from a small generator powered by a stirling cycle engine.
I was invisaging this being around 300W and running continuously 24hrs/day 365 days/year.
My plan was to get a big battery pack so we cycle the batteries only lightly to keep the number of available cycles high and the battery life long.
I was wondering if I might be charging the batteries too lightly too? and and at what voltage I should do this at? as it might be part way between a float charge or daily charge.
We will build a small straw bale building for the batteries and keep them at 20 Deg C to keep things stable.
Any thoughts?
Rob