I recently installed a Quattro 48/5000/70 to charge my 2 yr old 48v bank on my sailboat. The bank is a high quality, US based distributor of LiFeP04 3.2v cells with a Daly 400amp nonsmart BMS (I know this is not recommended or supported). The battery bank neg goes directly to shunt and the load side of the shunt has two wires , one leaving to the bms and the other going to the Quattro. I have a Delta-Q 1200 charger that has worked for 2 years with my current setup but it is limited to 24amps charging capacity and I wanted the Quattro to reduce generator run time. I have a 5.5kw generator connected to L1 input. Inverter works great. I have been unable to get the charger to engage bulk charging for more than a minute, on a few occasions, even if I try to force bulk by tuning on/off quickly. I have a cerbo gx and smartshunt in the setup as well. I would greatly appreciate any troubleshooting help.
