Emergency Keyring Phone Charger

Ever been stuck somewhere with a dead phone, if so this is the perfect project for you. We do this by charging our phone with a common displasoable 9 volt battery.
full instructions with links : goo.gl/o1EY9x
follow me on instagram: @Builditdante

[@Ferferite]

Here is an idea:you should try to do the same,but insted of using a buck converter,use a boost converter and glue it to two batterie holders.The two batteries should have 3V and it wold be enough to charge it

[@BuildItnow]

I tried this an it seems that two AA batteries can't deliver enough amps to run a phone at 5 volts 1 amp

[@Ferferite]

@@BuildItnow You are right

[@OmarHassan-e3u]

​@@BuildItnowsee my other my other comment

[@charliebrownau]

Cool idea . I would probly goto the extra length of choosing a rechargeable battery and adding a solar panel to it

[@BuildItnow]

+charlie brownau I was going to do that too! But the parts that I could find we just too big

[@OmarHassan-e3u]

What is the correct spelling of bekinberf

[@charliebrownau]

Gday Have you seen the DIY phones using raspi . I would love an DIY nokia phone with 3/4g + button keypad and 2-3" lcd with proper old style gui

[@a3qn]

nice