Had a Wasserstein solar panel / floodlight fail. Received a replacement in a few days. Had this on a shelf and decided to try and resurrect it. Found a loose wire in the battery compartment. Wasserstein uses 2 18650 batteries that test about 2400 mAh on my Opus tester. They didn’t skimp on batteries.
The panel has a standard USB connector.
Had a weather resistant box from a previous project so along with a v9 battery shield from Wish (another abandoned project), 4 Molicel P26a 2600 mAh 18650 batteries, and a spare v3, I present my attempt at a solar powered v3 :
If you figure out a way to make it fairly reliable (big enough solar panel to keep the batteries charged enough, etc), you could probably make something like this into a kit and sell them online. People of ALL brands of cams would probably pay a decent amount for kits they can just hook up without having to figure out all the details themselves.
The RAVPower USB power bank depleted its charge faster than the Wasserstein solar panel could recharge it as was expected but the v3 stayed powered up for 4 days, with 2 days of rain and clouds.
Now I will go into my Wish junk box and cobble together something using their 100 watt (cough) solar panel. The solar charge controller will charge a 12 volt gel cell like in a UPS. I have an inverter but why step up 12VDC to 120VAC then drop it back to 5VDC with a wall wart plugged into the inverter? Seems to be overkill. Still figuring it out.