Batteries don't charge
Let the two house batteries get down to 3.92 volts. Yes, I got stupid, but on with the story. Serviced them but now they won't charge from converter. Voltage from converter is 13.45. Across battery...
Forum Discussion
ArmySFCRet wrote:BFL13 wrote:
I thought the OP said the batteries were at 9.28 and the other side of the solenoid from the batteries was 2.35 then going to the cut off switch converter side it was 13.45, indicating that the problem is the cut off switch not letting the 13.45 through to the solenoid thence to the batteries.
What are the batteries at when disconnected (wires off) 9.28? if 12.x then there might be a mystery load dragging them down to 9.28 from their actual 12.x
Batteries unloaded and disconnected = 3.92
Solenoid output posts = 9.28 (large)
Solenoid input posts = 2.35 (small)
Converter output = 13.45
I think your house batteries may be the source for energizing that relay. If it is electromechanical, solenoid closing a high current switch, you need power to pull it closed, and you don't have it.
I've been there on a set of dying batteries, had to disconnect them and charge them separately before they would connect to the converter. Actually, I couldn't even put a battery charger on them, because my charger doesn't work with a battery that dead, needed about 10 hours on a 500 milliamp source to bring them up to chargable. But they were so far gone that I had to replace them anyway.
