7kWh LiFePo4 battery for Remote Station works! (Patreon)
Published:
2023-04-28 14:29:39
Imported:
2026-06
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Because the Remote Radio Station has no grid, we want to go solar. I built a battery with eight 302Ah cells, including a Daly 100A BMS. The 25.6V nominal (23.2 - 29.2V) is converted to a stable 13.8V by the grey buck converter.
On top, you find the needed fuses and breakers. As input, we have solar (an external MPPT) and a 25A charger (orange, background) to be connected to 220V of the generator if somebody is present.
I also added a DC solid-state relay that will be controlled by the modem (emergency off with a simple SMS).
During the initial testing, one cell was weaker than the others and was replaced without cost by the AliExpress seller (I bought batteries that were stored in Germany)
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