roltex_rohit1231
- May 20, 2010
- 4
- Joined
- May 20, 2010
- Messages
- 4
I have rebuild my laptop battery. it has yeilded me 6 cells (old ones holding good charge). now i want to utilise them to make a backup charger for my cell phone.. I have a seperate charger to charge them.
when i go for trek or there is a power failure at home, i want to charge my cell phone from the battery pack charger(from the laptop batteries) i want to make.
now the voltage of the batteries is 4.1-4.2 volts. i want 6 volts at 500ma for charging my cell phone ( these are the specs given on my cell phone charger).
I am not replacing ipod or cellphone battery with laptop batteries.
I want to build a circuit to convert the 4.2 volts to 6 volts at 500ma.
I want help regarding this. what ic can i use how should the circuit be?
when i go for trek or there is a power failure at home, i want to charge my cell phone from the battery pack charger(from the laptop batteries) i want to make.
now the voltage of the batteries is 4.1-4.2 volts. i want 6 volts at 500ma for charging my cell phone ( these are the specs given on my cell phone charger).
I am not replacing ipod or cellphone battery with laptop batteries.
I want to build a circuit to convert the 4.2 volts to 6 volts at 500ma.
I want help regarding this. what ic can i use how should the circuit be?
