Me thinks our leisure battery might be at the end of its life.
Basically we came back from ashbourne about 3 weeks ago, disconnected the battery as I always do, decided to check its charge sunday just gone and it was 11.99v, so went back yesterday morning and brought the battery home and put it on trickle charge, charger states 3ah on trickle, It was on for a good 16hrs but never got past 14.11v and 75% on the charge display. So I disconnected it and checked voltage and it was steady at 13.73v at 11pm last night. I rechecked it at half 4 this evening and it was 12.90v, so its back on charge now and keeps getting to 14.1v but the next time I go out, about half an hour later its back down to 13.93 the fluid in the cells are fine.
It's not unusual for the voltage to fall after a few hours, particularly if it has been charged with a car charger rather than a leisure battery charger or smart charger. There is a tendency for the battery to take a surface charge which appears to be a higher voltage but quickly drops back to the actual voltage.
The battery should never go above 13.8v unless it has been overcharged, which could very well fry it anyway.
after i took it off charge last night the voltage stayed at 13.90v, so from what I have read if its about 12.7 when I check it tonight when I get in about half 4 is should be fine, we are away this weekend so the battery is at home for the rest of the week. How much would a battery voltage drop from now till friday evening?
Quote: Originally posted by Dave+Maria on 31/8/2011
Just checked the voltage and its 12.89 so will check again in the morning and again at night to make sure its holding charge
Quote: Originally posted by Dave+Maria on 31/8/2011
Just checked the voltage and its 12.89 so will check again in the morning and again at night to make sure its holding charge
Checked again about an hour ago and its reading 12.83v seems like its still good ay, must get a solar panel to keep voltage from dropping below 12v when in storage, wonder if 10w will suffice?