Re: Discuss: Solar Charger & battery pack for the Raspberry

Schwabinger
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Re: Discuss: Solar Charger & battery pack for the Raspberry

Postby Schwabinger » Thu Dec 26, 2013 2:38 pm

Model A is now built into my radio and is desperately waiting for some sun!

http://www.flickr.com/photos/rigasw/11565070874/in/set-72157638612312533/

Schwabinger


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donnie-darko
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Re: Discuss: Solar Charger & battery pack for the Raspberry

Postby donnie-darko » Sat Jun 07, 2014 12:45 pm

Hello Cottonpickers,

is it still posssible to order 1x 1500ma Solar USB Panel Box / Pi Case?

Greetings from Germany

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cottonpickers
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Re: Discuss: Solar Charger & battery pack for the Raspberry

Postby cottonpickers » Wed Jun 11, 2014 6:20 am

Hi DD, Yes all the items I have are still available - including the USB Combo Box (li-ion based or NimH)

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donnie-darko
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Re: Discuss: Solar Charger & battery pack for the Raspberry

Postby donnie-darko » Tue Jun 17, 2014 7:37 pm

Hi,

thanks for your response. I think i will buy one box at the end of the month. (Have to earn some more money :oops: ;) )

Greetings,
DD

benz83
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Re: Discuss: Solar Charger & battery pack for the Raspberry

Postby benz83 » Sun Jun 29, 2014 10:16 pm

Hello guys, sorry if i disturb you. Im daniele from italy. im looking for a solution for solar charger for rasp. Infact i saw different discussion, but not find a real solution,...

I will ask you. Did you know the solar charger with battery build in? i dont know if i can post link of supply. are little solar panel with battery inside and supply tell have 50Ah. Is little: Size: 123mm*78mm*20mm
But is real 50Ah? uhm
and also...when i use the rasp the solar panel work in the meanwhile? can be a good solution? the cost is only 20 dollars

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cottonpickers
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Re: Discuss: Solar Charger & battery pack for the Raspberry

Postby cottonpickers » Wed Jul 02, 2014 6:20 am

benz: I know the small solar chargers with a battery inside. Yes, they typically have a 50ma solar panel and perhaps a 1000mah battery inside. They will work fine with a raspberry pi, but will only power it for about 2-3 hours maximum. Then at 50ma they need 22 hours of sun (so about 4-5 days) to recharge. They are cheap though.

benz83
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Re: Discuss: Solar Charger & battery pack for the Raspberry

Postby benz83 » Wed Jul 02, 2014 6:35 am

arghh, so isnt good. The supply wrote a not real power.. can i post the link?

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cottonpickers
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Re: Discuss: Solar Charger & battery pack for the Raspberry

Postby cottonpickers » Wed Jul 02, 2014 9:23 pm

sure

benz83
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Re: Discuss: Solar Charger & battery pack for the Raspberry

Postby benz83 » Thu Jul 03, 2014 6:51 am

Thanks

its this http://www.aliexpress.com/item/Hot-new- ... 55843.html

is a real 50000MAH?? Uhm

tell me what you think

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cottonpickers
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Re: Discuss: Solar Charger & battery pack for the Raspberry

Postby cottonpickers » Thu Jul 03, 2014 7:24 am

I'm afraid it's not true. 50,000mah is about 200wh. Most large laptop batteries are about 60wh. If you could fit that much energy in such a small pack every laptop would have one.

If it were real, it will take 1,000 hours of sun to charge it if it's got a 50ma solar panel on it (which it likely has). Looks ok but because of the fake claim it means you don't know what you are getting (if they don't tell the truth then they may as well use a tiny battery inside rather than put a proper one in.). We see this with fake 18650s where sellers use second hand batteries and re-wrap them inflating the claimed capacity.


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