Looking for ideas
Trying to help a friend commission his compact 12/2000. 2*100 Ah lithium.
No diagnostics.
Connected for first time, was charging the batteries at about 50A for about an hour, no sign of overheating, no fans cutting in. Small external load of about 50W for work lights.
Suddenly all cut out, indicator lights on front went off. No problem with external mains supply. after 20-30 seconds cut in again. Kept on doing this with the intervals between the cut outs shortening from 10 mins to a minute at best, time before it cut in again increasing from about 30s to minutes.
Took the cover off, no real hot spots, toroid warm, but not hot.
Turned grid power off, after a few minutes cut I'm again, ran the light loads off battery continuously.
Turned grid on, cut on normally, worked, battery voltage hit 14.4 and it kicked into float at 13.8.
