Can I Power My Robot Lawn Mower with a Solar System?
Asked by U4Kj6m1b
Hey folks, I'm looking to run a robot lawn mower on a piece of land using my solar setup. I have a 450 watt solar panel coupled with a 200ah 12 volt battery. The mower typically uses a power supply that outputs 240 volts stepped down to 20 volts at 0.5 amps. I'm wondering if I can just attach a DC converter to the battery to raise the 12 volts to 20 volts and run the mower directly without needing the original power supply. Are there any specific considerations I should keep in mind? Thanks for your advice!
Answers
Check if your robot needs 20V at 0.5A because that’s really low power. If it truly requires that, a boost converter could work, but ensure it meets the power needs when the mower is operational!
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Before you proceed, double-check that the charger for the robot mower delivers a stable 20V at 0.5A, as some chargers adjust their output based on the battery's needs. That 0.5A is pretty low and might just be for trickle charging. Also, using a buck converter to raise voltage could be helpful, but make sure it's efficient enough for your setup.
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You can definitely find 12V to 20V boost converter modules. But are you sure that the mower really only needs 20V at 0.5A? That’s just 10W, which isn't much at all. Just a thought!
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U4Kj6m1b: Oh my bad, it's actually 22V at 2.5A, so that's 55 watts! :D