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Solar Power Experts: solar outlet in a shed

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Forum topic by CharlesA posted 05-31-2015 04:08 PM 568 views 0 times favorited 4 replies Add to Favorites Watch
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CharlesA

3025 posts in 1265 days


05-31-2015 04:08 PM

From what I can tell, my idea is not worth doing, but I thought I’d check in. We have a new (to us) 24v cordless lawn mower, and I store it in an unpowered shed. B&D recommends keeping it plugged in when not in use. Hmm.

So, my wild idea was to install a solar panel with an outlet in the shed and keep the mower plugged in to it. But it loos like the cheapest way to go would be the HF solar kit ($185) plus a storage battery and converter. Not worth it for a little convenience. Is there a cheaper solution I’m overlooking?

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson


4 replies so far

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bigblockyeti

3668 posts in 1188 days


#1 posted 05-31-2015 04:22 PM

You can get a 100W monocrystalline solar panel off amazon for $150 and an inverter that would handle your mower’s battery charger for another $40 or less. For the time being you wouldn’t need a storage battery but you could add one later. You would only get charging on sunny days, but that should be frequent enough to keep the mower’s battery in good shape. Down the road if you feel it would be beneficial, you could add a battery and install 12V lighting as well for night time visibility.

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CharlesA

3025 posts in 1265 days


#2 posted 05-31-2015 04:34 PM

I wouldn’t need a voltage regulator?

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

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bigblockyeti

3668 posts in 1188 days


#3 posted 05-31-2015 04:39 PM

Most decent inverters will shut down by themselves if the load is to high or the input is too high or low (very unlikely a good solar panel would put out too much power for an inverter designed for automotive application).

View Steve Peterson's profile

Steve Peterson

325 posts in 2550 days


#4 posted 05-31-2015 04:49 PM

They make small solar battery chargers for 12V batteries. HF 68692 is an example, 1.5W for $15. You would need 2 and it might only work if your mowers 24V is actually built using 2 12V batteries.

It’s primary purpose is to maintain a trickle charge on an RV or boat battery to keep it from draining while sitting for long periods of time. It’s probably not designed to bring the mower back to full charge after using it for a few hours. The $185 kit is probably what you need for that.

-- Steve

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