On a Leaf, the 12 volt battery never experiences the high starting
current that a typical starting battery does in an ICE.
It is used to supply longer steadier draws. Thus, I would opt for a
li-ion battery with similar A-hr capacity as the lead acid it is replacing.
Bill D.
On 4/19/2021 12:37 PM, Lawrence Rhodes via EV wrote:
This Canadian has extreme use needs. This video was made for motorcycles but I think
transfers well for EV's. He demonstrates flooded lead, gel, sealed and lithium 12v
starting batteries what we need in our EVs to run the 12v system. Surprisingly the little
lithium does not perform as well as I thought it should and there is a reason. Testing
against the 9 ah motorcycle batteries with 500CCA the lithium had very similar CCA. I was
puzzled. Then the reveal. The "9" ah lithium was in reality a 3ah battery. So
they based their ratings like light bulbs. Going for lumen. In this case what was shown
is you only need a third the capacity in lithium to equal a lead storage battery. When I
size the Leaf 12v battery I am going to look for a battery a third the size in
capacity...maybe even less. Lawrence Rhodes https://youtu.be/3ywopGAXP-I
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