BMSBATTERY chargers voltage range?

[notger]

hi there

I'm interested in those two chargers from BMS BATTERIES

http://www.bmsbattery.com/alloy-she...ifepo4li-ionlead-acid-battery-ev-charger.html
http://www.bmsbattery.com/alloy-she...po4li-ionlead-acid-battery-ebike-charger.html

does anyone of you have experience with those chargers?

Most charger have three trimmerpots inside one for voltage, one for charge current and one for shutdown voltage
I would like to mount those pots in the alloy case combined with a voltage/current display to easyly adjust the charge voltage and current for different batteries.

How wide is the range of those pots if there are some built in?
is it also possibe to trim down the charge current?
Is it possible to modify the pots to get a wider range of charge voltage like 12-58volts?
If so that would mean every charger of one series is the same just the sticker on it and the adjustment of the trimer pots is different no matter if 12V40A or 84V9A like they offer on their product desciption?

thank for your experiences

gernot