Forum Discussion
MEXICOWANDERER
Oct 25, 2016Explorer
"Nehhhh"
Check charging voltage. If above say 13.4 and it's a 75 degree day the voltage is too high. Battery #2 could have an open cell.
If charger voltage is normal then suspect the thirsty battery as having gone bad. Test it.
If the "good" battery is more than a year-and-a-half old you should replace both. You can have a hundred batteries on a charging line. Twenty can be bad. The good batteries will not suddenly start using a lot of water
If you play
Eat one now save the other for later...
The old baytery will eat the new battery. Fiscally a poor choice. Boiled-down there isn't really advantage in testing unless the batteies are recen
Check charging voltage. If above say 13.4 and it's a 75 degree day the voltage is too high. Battery #2 could have an open cell.
If charger voltage is normal then suspect the thirsty battery as having gone bad. Test it.
If the "good" battery is more than a year-and-a-half old you should replace both. You can have a hundred batteries on a charging line. Twenty can be bad. The good batteries will not suddenly start using a lot of water
If you play
Eat one now save the other for later...
The old baytery will eat the new battery. Fiscally a poor choice. Boiled-down there isn't really advantage in testing unless the batteies are recen
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,283 PostsLatest Activity: Jul 17, 2025