Charging voltage for T-105s
Continuing my quest to learn everything I can about batteries and charging... Moved on from the group 24 Interstate, may mess with it more later. Also put the hydrometer with the floating balls whe...
Forum Discussion
MEXICOWANDERER wrote:
BOTH EQUALIZING AND TOP CHARGING REQUIRE A CONSTANT AMPERAGE OF FIVE PERCENT OF TOTAL BATTERY AMP HOUR CAPACITY.
So if I go the manual route, do I need two chargers, a low amp and a high amp? There seem to be a number of chargers that have an adjustable voltage output, but I haven't seen any where the amperage is adjustable.
Example: say I get a 55A charger like the PowerMax. Set it to 14.8V and connect it to the 2 105s in series. During bulk, the output should remain constant at 55A while the voltage slowly rises to the set 14.8V. During absorption the voltage should stay constant at 14.8 while the amperage tapers off (but I have no control of that - it's up to the battery). Once a hydrometer dip shows 100%, you are done.
But to equalize, sounds like I need 16V at about 11A (5% of 220AH). Can't do that with a 55A PowerMax. So I need basically a 10A charger that I can set to 16V?
Not really worried about generator charging yet. This is all taking place on my work bench connected to household power, so time to charge is not an issue.
