Hi guys, this a fast charger for charging rechargeable batteries( Fast Battery/cell Charger Circuit)like Ni-Mh or Ni-Cd,(Don’t have an auto cutoff, but after cells got charged the led is consuming all power so there is no chance of overcharge), etc. This charger is also useful to charge 9v rechargeable batteries up to 2500mah. The charger charges the batteries up to full in just 45 minutes to 1.5 hours.check videos. Fast Battery/cell charger circuit.
Step 1: MATERIALS:-
1.Transformer 0-9v 500ma(recommended)or 9-0-9v if normal one is unable
500ma(use the center wire and one 9v side like
2.Diodes 1N4007 -4pcs
3.Cell holder -max 2pcs
5.Any 3 Amp diode for flywheel protection from
6.Capacitor 2200uf 16v(prefered) or 25v -1pc
7.wooden or cardboard piece for platform or box of
8.LED any color except yellow and white -1pc
Step 2: Circuit & Concept:-
The design discussed here is very simple but powerful. It’s having a 9v 500ma transformer and a
bridge rectifier circuitry using diode 1N4007.
Capacitor 2200uf 16v is used to filter the output
of the bridge rectifier and enhance its current and
quality, a green led is there to indicate that the circuit
is switched on and after the battery is recharged, the power goes to led only and extra power is only consumed by LED. After the 2200uf capacitor, the
output quality enhances from 500ma to 800ma approx. A
3 amp diode is used as a flywheel diode after the
capacitor output to protect the circuit from damages
and voltage strike back.
Step 3:Design & Making
The transformer, the PCB, and the cell holders are all mounted on a wooden plyboard piece, the circuit made on a
general-purpose PCB and curated in such a way so that it’s compact. the charger is easy to carry and can even charge 9 volts batteries(rechargeable).check video for more info.
The transformer, the PCB, and the cell holders are all mounted on a wooden plyboard piece, the circuit made on a general-purpose PCB and curated in such a way so that it’s compact. the charger is easy to carry and can even charge 9 volts batteries(rechargeable).
I HOPE YOU GUYS LIKE THIS. IF YOU GUYS LIKED IT PLEASE COMMENT IT.
A VIDEO IS ALSO ADDED BELOW PLEASE WATCH IT.