diy solar

diy solar

Charging using a power supply without current limitation

Just an update for anyone in a similar situation to share my experience.

I used 2x 100w 0.1Ohm resistors in parallel

used a piece of aluminium as an additional heatsink.

I set the charging voltage to 29V which resulted in 20-25A of current.

Each resistor dissipated around 15W, much below the rated 100W, but still their temp was slightly above 100 Deg C (water slowly boiled when in contact). The spec states they are good up to 300 Deg C, so I should be good.

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