Now look at the standard umbrella and figure out if it is 25x30cm…
Comment on Solar powered personal umbrella with battery?
Valmond@lemmy.world 20 hours agoI have 2, around 25cm x 30cm and, when perfectly aligned to a strong summer sun, they do 1 watt and 2 watts respektively. Amazing.
Also, sitting outside in the harsh sun with a laptop? No thank you 😁.
This is really niche stuff for when you can’t even reload your power bank once every couple of days IMO.
nimpnin@sopuli.xyz 18 hours ago
Ilovethebomb@sh.itjust.works 20 hours ago
Yeah, that’s my experience as well, you leave them out all day and get half a power bank if you’re lucky. Basically only worthwhile if you’re camping somewhere remote for an extended period of time.
pineapplelover@lemmy.dbzer0.com 6 hours ago
I got one to charge my phone to 1%. Pretty happy