UPS charger woes

I would be more concerned with the temperature of the batteries at the charge cut-off point. However, I've read that at an excessive charge rate, the plates of a lead acid battery (if that's what's being used) can warp.

We can worry about anything!

Dave M.

I don't know if this guy discusses the effect of high charge or not. I think he recommends C/10 for deep discharge types.

When the replacement battery is $125+ S&H, there's every reason to worry whether the battery will last 2 years or 5 years.

X-No-Archive: Yes

I don't think any lead acid battery takes quick charging as kindly as NiCd or NiMH. It's not a big deal whether or not that one time "free instant charging" from parts store reduces the life of your $30 EverStart in your car by a year or not, but it's a big deal if frequent quick charging shortens useful life of a battery pack that costs $140 to replace.

Don't press me for details but I remember reading that some "car" batteries MUST be initially charged at a moderately high rate (20 amps?) or it will forever have reduced capacity.

Never heard that but it is said they should be "broken in".