battery charging voltage
Hi, My new to me batteries will be installed tomorrow. I know that recommended float voltage is 13.5 to 13.8 volts. What would be a good voltage for absorb charging? They are used telecom ...
Forum Discussion
MEXICOWANDERER wrote:
VOLTAGE LIMIT WHEN CHARGING.
An excess acid AGM can be damaged easier by overdischarge than can a classic acid starved AGM design. Slightly thicker mats hold more acid. Less CCA same 20 hr rate greater 100 hour rate. If you like your new to you telecomm treat is like a normal AGM battery. Don't cheat and slow charge them or play with absorbsion or float. Don't repeatedly undercharge the battery.
So the main difference between a "classic Acid Starved AGM", which is the normal AGM I guess, and an "excess acid AGM", which I guess is typically a telecomm AGM, is just that an "excess acid" AGM has "Slightly thicker mats " that "hold more acid" ???. Sorry, this is new terminology to me, and Google is no help.
And yes, I too am spoiled with a solar controller that has either/or time based and current based termination of the Absorb stage. I rarely have to touch my batteries with anything else ...
