Rodallg
Sep 19, 2013Explorer
Battery check
Checked my chassis battery 1 week ago and it was at 12.17 vdc (with the neg. lead disconnected), today I checked and it was at 11.88. Is this an expected drop? Battery is 2.5 years old. I checked the ...
Rodallg wrote:What are you using to charge the battery? Is it a small float charger? Manual car charger 6+ amps? Or a 3 stage smart charger? How long are you charging it for? How do you know when it is fully charged? You should let it sit overnight before taking voltage readings. By waiting several hrs like you stated you are just reading a surface charge. If you disconnect your neg cable or install a disconnect on the neg cable you should be able to last several months without recharging on a fully charged battery. I have an older MH also with a 7 year old Walmart battery and have a .4 amp draw without disconnecting the battery. A 2.5 year old battery should still be good unless it was severely undercharged for that period. I would get the 40 amp B&D or Stanley smart car charger if you don't have one already and fully charge it, then run the equalize function. Hope this helps.
Any comments?