6V Gel Cell Battery Charger

Sun, 16 Jan 2011 03:58:16 +0000

The following scheme diagram is the battery charger circuit for 6V Gel Cell battery type only.

Above diagram is the schematic of 6V Gel Cell Battery Charger. This circuit requires a regulated 10V-DC front end capable of supplying 2 Amps electric current, you should build this kind of power supply first. Begins the charge period at 240mA and at full charge switches automatically to a float condition (trickle charge) of 12mA. The capacitors should be the ceramic 50V (or greater) model.

" data-image-caption="" data-medium-file="https://i0.wp.com/electronicscheme.net/wp-content/uploads/2011/01/6V-Gel-Cell-Battery-Charger.jpg?resize=200%2C135&ssl=1" data-large-file="https://i0.wp.com/electronicscheme.net/wp-content/uploads/2011/01/6V-Gel-Cell-Battery-Charger.jpg?resize=630%2C380&ssl=1" class="size-medium wp-image-746 aligncenter" title="6V Gel Cell Battery Charger" src="https://i0.wp.com/electronicscheme.net/wp-content/uploads/2011/01/6V-Gel-Cell-Battery-Charger-300x245.jpg?resize=300%2C245" alt="6V Gel Cell Battery Charger" width="300" height="245" />

Components List:

R1 = 22 ohm, 1W
R2 = 270 ohm
R3 = 220 ohm
*R4 = 715 ohm, 1%
*R5 = 3.57K, 1%
*R6 = 1.40K, 1%
*R7 = 1.47K, 1%

C1 = 0.1uF, ceramic
C2 = 0.1uF, ceramic
D1 = 1N4001
T1 = TIP31A, B, C (or equivalent)
U1 = NE555V (or equivalent)
S1 = Toggle switch, ON-OFF

* Resistors are carbon type, 1/4 watt, 5% tolerance, unless otherwise indicated.

Circuit explanation:
This circuit requires a regulated 10V-DC front end capable of supplying 2 Amps electric current, you should build this kind of power supply first. Begins the charge period at 240mA and at full charge switches automatically to a float condition (trickle charge) of 12mA. The capacitors should be the ceramic 50V (or greater) model.

Switching transistor T1 is an NPN, Si-Power Output/SW, with a TO-220 case and can be changed by using a appropriate substitute such as the NTE291, ECG291, etc. Timer/Oscillator U1 is a 8-pin NE555V and can be changed with a NTE955M or ECG955M. Resistors R4, R5, R6, and R7 are 1% metal film types. They may not be obtainable at your nearby Radio Shack/Tandy retailer and need to be ordered in. Try Electro-Sonic or Newark Electronics supply stores.

NOTE: This circuit is only designed for 6-volt, 1.2Ah Gel Cell type batteries!

The post 6V Gel Cell Battery Charger first appeared on Electronic Schematic Diagram.

Gel Cell charger schematic | Electronic Schematic Diagram

6V Gel Cell Battery Charger