## Monday, March 24, 2014

### Simple Circuit Schematic Multiple Battery Charger for NiCd and NiMH

Robometricschool. - Do you want to build electronic device that can be used to charge multiple battery voltage of many electronic device as like batteries from radio, MP3, iPod, smartphone, and others batteries from electronic devices?

In this time we want show you one electronic circuit schematic that can be used as Multiple Battery Charger for NiCd and NiMH like in figure 1 below. We think it is very simple electronic circuit schematic that very useful to you.

Circuit Schematic

 Figure 1. Multiple Battery Charger for NiCd and NiMH

Component List
1. D1 = IN4005
2. C1 = 220 uF/25V
3. R1 = 120 ohm 5W
4. Q1 = BD 135
5. D2 = LED
6. RX = see table ......>

Description

According description from circuitdiagram site show us that we can charge multiple voltage batteries with the help of  the input voltage chart given below for example if you want to charge 1.2V battery then the minimum voltage should be 6.5V and maximum should be 10V.

We can also change the output current to desired value by changing the value of resistor RX. The output current chart is also mentioned below. It is better to charge a battery with a current ten time smaller then the battery capacity.

If we double the charging current then the battery will charge in half time. I suggest you to charge the battery for 15 hours if you select charging current ten times smaller but if you double the charging current then the battery will become charge in 7 hours.