Forum Discussion
Chuck_S
Oct 06, 2013Explorer
The LP detector "low voltage" alarm is what you heard. The parasitic electrical loads on the battery (the LP detector and radio memory for starters) will kill a Group 24 battery is about 2 weeks. Faster if the battery is indifferently charged or old/damaged. The battery must be disconnected between camping trips. A switch on the ground (negative) cable is the most effective.
It's doubtful your battery will fully recover from 7.6v but it won't hurt to try.
Add enough distilled water to cover the plates. Dry plates are dead plates. Charge for 24 hours. Completely disconnect the battery and add distilled water to the fill marks. Let sit 24 hours and measure the voltage. 12.7 is fully charged. If not charge another 24 hours, disconnect and let sit 24 hours, and re-measure.
Well maintained batteries should last many years. Leaving the trailer connected to shore power should maintain battery charge but can also "boil" the battery dry. Periodic checks of the electrolyte lever should be made. Remember dry plates are dead plates.
-- Chuck
It's doubtful your battery will fully recover from 7.6v but it won't hurt to try.
Add enough distilled water to cover the plates. Dry plates are dead plates. Charge for 24 hours. Completely disconnect the battery and add distilled water to the fill marks. Let sit 24 hours and measure the voltage. 12.7 is fully charged. If not charge another 24 hours, disconnect and let sit 24 hours, and re-measure.
Well maintained batteries should last many years. Leaving the trailer connected to shore power should maintain battery charge but can also "boil" the battery dry. Periodic checks of the electrolyte lever should be made. Remember dry plates are dead plates.
-- Chuck
About Travel Trailer Group
44,029 PostsLatest Activity: Jan 28, 2025