Senior Member
Joined: 12/09/2020
Location: United StatesPosts: 120
| Posted: 06:37pm 13 Dec 2024 |
Hi,
I got hold of some bulk-priced LiFePo batteries! I'm considering upgrading my setup to these ones, but I wanted to see how I need to change the code for the MPPT.
The easy one is ending voltage (14.4V * 4 -> 57.6V), that's obviously trivial to change, as well as turning off the temperature compensation.
Additionally, I have a "standby load" at my site (electric fence) that I wish to keep connected, so I can't completely power off the setup when I am gone.
What I'm unsure about now is usage vs storage voltage. Since LiFePo are not supposed to be float charged, I would think we need a way to select between "use" and "storage" voltage.
I've seen that you can keep them charged to 3.3V / cell (so, 52.8V) for long-term storage, would people agree with that?
Is anyone using this MPPT for LiFePo batteries? If yes, what settings are you using?
Cheers,
R
Edited 2024-12-14 04:45 by flyingfishfinger