Frozen battery cells
My MH has been in MT for 3 mos(another thread) I asked the shop to charge the batteries because they sat so long over the summer since July. Apparently the charged the chassis battery but not the hous...
Forum Discussion
eHoefler wrote:
Your batteries are junk. Never try to charge batteries that are frozen or have been frozen then thawed. They can and will explode! I have had 4 batteries explode on me over the years working in class 7 & 8 truck. Replace them!!
AGMs are not like that. They can freeze without damage. They can be thawed and then charged.
I don't know how you are supposed to tell that they are frozen as they are sealed. I doubt you could observe any swelling as there is not much liquid in there and what there is, is absorbed. Probably a pint per gallon of liquid compared to FLA.
I guess an IR gun would help or you may have the type of charger that uses a temp sensor cable. My solar controller system records battery temp at one minute intervals.
HTH;
John
