The powerCheq units seem to take a short time of 1-2s to begin equalizing. This should not be a problem when used with most chargers, but the Zivan I have pulses at the end of charge cycle. I found one battery in my bike coming up to more than 15v for a short period than dipping back down as the powerCheq kicked in during the end of charge cycle. A couple others were coming up to about that, while the other three were at around 14v. This is very bad for equalization, and shut regulators (which may not have a delay) would work better than powerCheqs under these conditions.
I have to either get a charger that doesn't pulse, or get the Zivan reprogrammed.
Its a good idea to make sure your charger doesn't pulse if you plan to use powerCheq units.