Portable iPhone charger

[maffa ent]

Evening all!

I want to make myself a charger unit for iPhone / iPad? I'm thinking a 22ah battery, charge level indicator, and usb sockets on the output?

Does anyone have any experience, advice, or recommendations, that they think may be of use please?

Thanks in advance!

 

[amlu]

that will work, but 22ah battery will weight couple of kilos, you sure you want to carry it around?

 

[shanky887614]

Evening all!

I want to make myself a charger unit for iPhone / iPad? I'm thinking a 22ah battery, charge level indicator, and usb sockets on the output?

Does anyone have any experience, advice, or recommendations, that they think may be of use please?

Thanks in advance!

make your life easy.

use 12v batteries, wire in a V indicator and dont use usb ports, use panel mount cigarette lighter sockets.

otherwise if you wire it straight to a 5v transformer then you might only be able to charge the iPhone at 500mah.