DIY USB Charger (1 Viewer)

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ped

Glorified monkey
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but they're meant to run off 12-15v...how is a 9v batt supplying enough voltage? second just soldering a small solar panel to the 12v car charger will acheive the same thing...if the panel doesnt already have a converter with it.
 

Garminbozia

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but they're meant to run off 12-15v...how is a 9v batt supplying enough voltage? second just soldering a small solar panel to the 12v car charger will acheive the same thing...if the panel doesnt already have a converter with it.
That is a good question about how a 9v battery can do the job, maybe a car charger concerts the voltage or the amperage is the same??? I'll have to Google that...And if this does work then it'll be more dependable than a solar charger. Cheaper too.
 

ped

Glorified monkey
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Messages
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right but the car charger is designed to output 5v converted from 12v. If it's only being fed 9v it would have to pull excessive amps from the battery running it dead quicker. I bet a pack of 8 AAA (which is 12v) would do a much better job and you can get the pack holders from salvage or radio shack (and online im sure).

then if you get re-chargables you can hook a small 12v panel right to them or charge the pack directly off a cig lighter port.
 

Garminbozia

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Aug 27, 2016
Messages
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Age
34
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St.Cloud, Florida. United States
right but the car charger is designed to output 5v converted from 12v. If it's only being fed 9v it would have to pull excessive amps from the battery running it dead quicker. I bet a pack of 8 AAA (which is 12v) would do a much better job and you can get the pack holders from salvage or radio shack (and online im sure).

then if you get re-chargables you can hook a small 12v panel right to them or charge the pack directly off a cig lighter port.
Lol you can recharge your recharger. Niiice
 

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