Hello,
I seem to be having more than my fair share of problems with the batteries in my narrowboat and would be very grateful for some advice please!
We have 1 starter battery, and 3 domestics. The domestics are 220Ah Elecsols.
We also have a Phoenix Multi charger/inverter, set to fixed (not adaptive) mode, with an absorption voltage of 14.9, a float voltage of 13.8 and an absorption time of 4 hours.
We also have a Whisper generator and a Smartgauge.
We usually live aboard but have been away for 2 months, during which we turned all the power off. We returned on Thursday and have been trying to charge the batteries. The Elecsol leaflet we have says that the batteries are fully charged at 12.8, 50% charged at 12.4 and totally discharged at 10.8. However, the Smartgauge keeps flashing an 'E 03' error code at us when the generator is on, which I understand means too high voltage. When we switch the generator off and leave it a couple of hours, it says the batteries are at 12.25 and 67% charged, which doesn't make any sense to me.
My queries are:
1. Have we set the charging voltage incorrectly? If so, what should the charging voltage be for Elecsols?
2. Why is the Smartgauge saying the batteries are at 67% when the 12.25 reading doesn't agree with that?
3. What are we doing wrong?!!
We really need some help before we bu**er up the batteries any more than we probably already have!
Thanks very much,
Becks101