Thanks everyone! Here’s some answers:
- I measured at the posts and it was close to what the charger said (within a few tenths)
- charger is computerized and keeps track of the number of charge cycles
- I was thinking 9.88 should be target too, and hold that until current drops.
- batteries are new, right off the Trojan delivery truck.
- I took them home and connected them one at a time to a power supply set for 9.8V. So they were even.
The AGM profile for this charger will charge CC to 9.88V per battery (59.28 for a 48V system) and then wait for the current to drop before terminating charge. I’m going to give that a try.
Regarding equalization, guessing that’s more important when many packs are in series like this one (6qty), hence doing it once a month.
I’m surprised Lester is taking the voltage so high with every charge. They’re a big company, doing this a long time, and I’m not reading that they are known for cooking batteries. Really weird what I’m seeing and what tech support told me.
