"Wayne.B" wrote:

Lew, I respectully disagree with both of those statements.

A recharge rate of 25% is normally acceptable for the bulk charging
phase, up to 70 or 80% of full charge.

The operative word is "AVERAGE".

Yes, you can have 25% recharge rate for a portion of the cycle;
however, the 15% recharge rate is a design parameter given to me by a
Trojan application engineer who at the time was older than dirt, and
had forgotten more about wet cell batteries than either one of us will
ever learn.

IOW, the time to completely recharge will be Total AH/15%.

13.2 to 13.8 is usually considered the "float" range where the
battery
is being maintained at full charge.

Back in the days when I was in this business, regulators were set as
low as possible to minimize boiling.

Basic spec was 13.6 +\- 0.2.

Lew