(ET) charger

[wombat <wombat dssinternet net>]

I think you should have about 47 volts out of charger open circuit.  
When charging you need  a minimum of 2.4 volts per cell at the battery,  
can go to 2.7 volts for a full charge.
At 40 volts you are only getting 2.2 volts.

wombat