When I think of all the battery chargers I have bought over the years…it does make sense to get something 1/2 decent that does several types. Hindisght/wonderful thing and all that.
I would get three chargers…I always need at least three batteries on a Sunday and sometimes they take a while to charge and if you leave it late/forget/do not plan ahead, you can simply run out of charging capacity.
This is one of the benefits of SLA`s mind.. I have more than a few models that do/can use SLA and I know I can just grab a few and off we go, as I always charge them up after a session and they hold their charge for months.
aSHLEY