#14 in Mp3 player chargers & power adapters
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Reddit mentions of Sunpak SC-800 Solar USB NiMH 800 mAh Battery Charger
Sentiment score: 1
Reddit mentions: 1
We found 1 Reddit mentions of Sunpak SC-800 Solar USB NiMH 800 mAh Battery Charger. Here are the top ones.
or
- Solar Or USB Input
- 800 mAh
- Solar Charging: 8-10 Hours
- USB Charging: 2-3 Hours
- Weight: 1.94 Oz
Features:
Specs:
| Height | 1.6 Inches |
| Length | 9.5 Inches |
| Number of items | 1 |
| Weight | 0.25 Pounds |
| Width | 5.5 Inches |
Hi there! Understanding you are not the guy in the video, there is a lot wrong here.
He is scavenging the connector from a cheap charger my cutting away the power source. These connectors are available from a source like Mouser for pennies. He's wasting a working charger there.
He is combining multiple small solar cells into a bank of cells and wiring it to the cord. Most sources such as mouser can provide a cell already soldered and wired for almost the same price.
His final fan design results in covering a significan portion of each cell. He is not getting nearly as much voltage as he could from the array.
Solar cells have a naturaly varying voltage depending on light conditions. Without a regulator, He could be running anything from 0 to 12v directly into his phone. The charging circuit inside will prevent the batteries from overcharging, but running 12v say into a socket designed for 3.3v will burn something out eventualy. He needs to run the output of the cells into a board with some caps and a 7805 regulator at least. You will get a small drain from the regulator circuit, but it won't blow out your phone. And before anyone says it, yes some phones can handle the varying voltage just fine, but I'm not going to count on it.
Or you could take 5 minutes and order one of these.
http://www.amazon.com/Sunpak-SC-800-Solar-Battery-Charger/dp/B003DS7P0E/ref=sr_1_4?ie=UTF8&qid=1345997225&sr=8-4&keywords=solar+phone+charger
EDIT:spelling