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Two battery types on common buss

Larry DeCamp

Well Known Member
I called Earthx for clarification of posts on another thread. If you care or need to know about LiFe and AGM charged from the same source, here is what they said :

Line voltage should be 14.2 to assure full charge of the LiFe unit.

Both batteries will only take what they need to fully charge (13.4 and 12.6 ).

DO NOT design the system so that both batteries are connected in parallel with the master off. The internal discharge rate of the AGM will pull the LiFe down over extended inactivity.

This can be relevant for EI alternate / backup power for example, where you want normal charge of both batteries, but isolation of electricity if the unexpected happens.
 
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