Re: Batteries - EV Conversion

"Clare Snyder"  wrote in message news:34j3vj96hg0104drb5h02sntpm3i534jki@4ax.com...
On Wed, 26 Feb 2025 16:38:48 -0700, Bob La Londe <none@none.com99>
wrote:

I kinda had a plan.  I was going to use LiFePo batteries instead of
lithium Ion because they are safer.

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LiFePO4 has a higher internal resistance and lower maximum current capacity than Li-ion or lead batteries.
https://www.litime.com/products/litime-12v-100ah-lithium-lifepo4-battery?
"Note: This 12V 100Ah battery is suitable for energy storage rather than start-up."
It's not dual purpose like a lead acid marine battery.
The internal BMS, the protection circuit, limits the current from one battery and also the total current and voltage from a pack of several batteries in series and parallel.
For LiFePO4 the current limit is typically the Amp-hour rating or a small multiple of it, while Li-ion cells and batteries are available with maximum current ratings of 50 or more times the Amp-hour capacity.