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...
I need a small induction furnace to melt metals and silicon. I want to make one by myself and have no idea how to make it. can anyone help me. i need circuit diagram with contorl over temperature and component part numbers. please help. thank you