Is it OK to mix battery types??
I have a new trailer along with its accompanying new 12v deep cycle battery. I also have a nearly new large 12v diesel starting battery just sitting in the garage. I would like to hook them up togethe...
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You can add mixed and mixed age batteries. But, it is not a good idea. A older battery will cause problems with the newer battery and can cause the newer battery to fail prematurely. Interstate Battery, one of the largest makers of Batteries in the USA, They have a policy, If just ONE of their batteries fail during warranty, they replace ALL the batteries in that battery bank. Now to your situation. The RV battery SHOULD be a deep cycle battery. A Chassis battery is NOT. So you will be mixing a Deep Battery with a standard Battery, which is not good. Doug
