Originally Posted by zboss
Are there any best practices for breaking in new batteries?
I have four new Trojan T-145 Plus batteries but Trojan doesn't seem to provide any guidance on ensuring you get the most longevity from your battery bank.
I do what I call a commissioning charge and it was passed on to me by the one of the engineers at US Battery..
This means I charge to full at 14.8V (Trojan's) then bump them to 15.5V for two hours. I deem full when the current
is no longer diminishing and has stabilized at absorption voltage.
Here is a reference for "full" at 14.4V with two L-16's in parallel. They are accepting approx 0.1A of charge current
or just 0.39% of capacity..
If these are going to be series wired batteries I first wire them in parallel and let them self balance for a day or two. I then charge them in parallel at half the voltages listed above or 7.75V for equalization
charge and 7.4v for absorption.. This ensures balanced 6V cells before series wiring
. I do this because many owners never push the voltages as they should to ensure a full charge. If using 2V cells I do the same but at 1/6th...
Break in requires some cycles before you will fully see the batteries support the voltages you expect. Some batteries seem to take 20 cycles to 50% and some take considerably more. Don't be shy about cycling them to 50% initially. You will eventually see your voltages stay higher under load and this is an indication they are finally broken in.....
You may also consider hydro-caps or similar..