Hi, i've recently bought a 1992 rocky which is great, but i've got problems with the charging.
Recently i've been driving to and from work with the lights on all the time. The battery lacks power and will only just start the engine, although no problems with lights fading or warning lights coming on when driving.I've put a battery tester on it and it says battery at 75/100% and alternator ok, and not over charging either. If i drive about without lights the battery perks up and starting is more lively, but can flatten very quickly if lights on without engine running.
I've taken battery out and found electrolite levels below minimum.one cell (nearest positive terminal) was lower than others and after topping up and charging it did'nt respond to charge like the other cells. not sure how long the levels been low, so not sure if its been over heated or just poorly maintained. I'm convinced the batteries had it but am reluctant to renew yet if there is another fault. sometimes when driving i can hear a quiet buzzing from engine bay but cant locate,Don't think its alternator, when i turn lights on it dissapears.
Also when i start up from cold theres a relay box next to battery that ticks about ten times then stops. If engine is warm then it might tick but maybee only 1 or 2 times. my mates fortrack does the same. Is that normal. if any one can help it would be greatly apreciated.