DBC
Well-Known Member
- First Name
- Don
- Joined
- Oct 1, 2020
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- San Diego
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- Volt ELR
Yes, you're right that you likely only need 100W or so to get the computer running. But battery life depends on many things. Given that you can't get into the MME if the 12V goes flat, so even a portable charger won't help if the car is locked, I'd probably replace it more rather than less often.OK, on a serious note: The Mach-e 12v battery will be much smaller than you might expect. Why? As noted, it doesn't have to "crank" the Mach-e. I would also expect 7+ years of life out of it.
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