|portable mobile phone charger|
How to make a portable charger for your mobile phone.
The charger is fairly simple -all you need is basic soldering knowledge.
9 volt rechargable battery
one resistor (150Vohm-500ohm)
voltage regulator like LM7805 or UA7805 or any 7805
mobile phone cable
The circuit can be built on a much smaller pcb but beginner might find it easier if a big one is used.