12V battery replacement ...

I've been using a LiFePO4 battery in our 2017 ED for almost a year now and have experienced no problems whatsoever.
It's important to remember that the starter battery is only used for a brief time during start up and then begins to charge
from the H/V pack as required. However a 2 amp hour motorcycle battery just isn't going to cut it in my opinion.
My battery is a 38 amp hour and fits perfectly in the OEM space provided. Even Tesla's use a LiFePO as replacements
which are lower in Amp Hours than the factory provided versions...Also, some manufacturers' now fit LiFePO4 as standard.

That relates to a motorcycle's regulator. My LiFePO battery has it's own internal BMS which negates
any overcharging concerns...

Jeb Baker said:

I noticed just the other day I had 14.67v on the battery in my smart while it was plugged in charging the mains.

Lebikerboy, does the LiFePO4 battery you have in your smart have a maximum acceptable voltage?

Click to expand...

Whatever maximum voltage input is programmed into the BMS which, I believe is 14.0 volts...