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...
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You don't need to worry about the amps size much for equalizing as long as it has the power to do the amps at the voltage.
I did an equalize with my adjustable 100 amper that goes to 15.6 volts max on one pair of 6s while I put my VEC1093DBD 40 amper on the other pair of 6s.
The VEC has to be run at its 4 amp setting to do an equalize at 15.7v. Amps hold at around 4 then taper till the charger says Ful and shuts off. Done.
Meanwhile the 100 amper, set to 15.6v and having only its 100 amps as the amps limit, also kicked off at about 4 amps!!! and it did about the same taper profile as the VEC did. Only thing there is I have to shut off the 100 amper as it is not "automatic" for shut down--it is a converter that stays on.
So the battery is the amps limiter. You can't equalize till the batts are already "full" so they don't accept many more amps by just cranking the voltage up from 14.8 to 15.8
At a fixed voltage amps will taper. To do the Mex constant amps trick you have to keep raising the voltage. You can do that with one of those buck boost gizmos that have adjustable voltage and adjustable amps, so you have stay there to twiddle the settings to raise the voltage and keep the amps constant. (AFAIK :) )
I did an equalize with my adjustable 100 amper that goes to 15.6 volts max on one pair of 6s while I put my VEC1093DBD 40 amper on the other pair of 6s.
The VEC has to be run at its 4 amp setting to do an equalize at 15.7v. Amps hold at around 4 then taper till the charger says Ful and shuts off. Done.
Meanwhile the 100 amper, set to 15.6v and having only its 100 amps as the amps limit, also kicked off at about 4 amps!!! and it did about the same taper profile as the VEC did. Only thing there is I have to shut off the 100 amper as it is not "automatic" for shut down--it is a converter that stays on.
So the battery is the amps limiter. You can't equalize till the batts are already "full" so they don't accept many more amps by just cranking the voltage up from 14.8 to 15.8
At a fixed voltage amps will taper. To do the Mex constant amps trick you have to keep raising the voltage. You can do that with one of those buck boost gizmos that have adjustable voltage and adjustable amps, so you have stay there to twiddle the settings to raise the voltage and keep the amps constant. (AFAIK :) )
