[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: (ET) Fw: Stock E20 charger
There's a pretty wide window for most battery types, but in general a rule
thumb for cyclic use is to charge at 10% of the C20 capacity expressed in
amps. For golf car batteries, that's about 25 amps. This rate ensures
the battery is charged in a reasonable amount of time, and doesn't get
undercharged and sulfated.
Some batteries actually require bulk charge current of at least this
they lose capacity (Hawker batteries are infamous for this).
Quite a few low cost chargers are actually taper chargers and won't
their rated current except at the very beginning of the charge.
In the Soneil range, the 3650SR meets the above requirement. The 3630SR
would probably work OK, too. Of course, it would take longer to complete
the charge cycle.
However, with a Soneil charger you probably should remove the battery taps
for the lights and lift and replace them with a DC:DC converter. It's not
to me that Soneil chargers will perform enough equalization to deal with
sometimes rather large pack imbalance caused by the taps. This would
result in some of the modules (most likely the ones driving the lift)
getting more and more undercharged. Not good.
Probably the most cost-effective smart charger for an ET is an automatic
car charger such as a Lester (especially if purchased used). Lesters tend
go a bit overboard with equalization - just the thing for a tapped
It's a seriously big and bulky boat anchor, though, so it's really suited