Gel Cell Battery Charger Circuit

When a discharged gel cell is connected the charger goes into a fast charge mode at a fixed rate of 400 ma.

Gel cell battery charger circuit.

The circuit in figure 1 was designed specifically for 12 volt gel cells. Noco genius1 1 amp fully automatic smart charger 6v and 12v battery charger battery maintainer and battery desulfator with temperature compensation. Next attached the output to the gel cell battery to be charged. After the chip detects the voltage leveling off or when 4 1 2 hours has elapsed.

This is a gel cell battery charger circuit using lm317. When attempting to charge a gel battery with a lead acid charger you must ensure the peak charging voltage does not exceed 14 7 volts which would result in dried non conductive gel. This circuit can charge gel cell battery with reverse current and overcharging protection. The led should be lit.

This 12 volt gel cell battery charger. To use the charger connect your wall wart to the input and plug it in. 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. Place the battery on the gel cell battery charger by following the manufacturer s instructions for insertion.

It can charge any size of the gel cell batteries with the charging current 300ma 650ma and 1 3a. Simple 12 volt gel cell battery charger circuit constructed by using few easily available components. 4 5 out of 5 stars 3 035. It can extend the life of the gel cell battery.

We know a gel cell battery is a vrla valve regulated lead acid battery with a gelified electrolyte and this type of batteries are maintenance free batteries. As the battery terminal voltage starts to reach the float charging range the led will begin to light. Because it is a lower voltage charging adjust the voltage of 13 4v. Step 2 turn on the charger and charge the battery until the voltage on the terminal reaches 2 40 to 2 45 volts per battery cell 14 4 to 14 7 volts on a 12 volt battery at 58 degrees fahrenheit 20 degrees celsius.

If the battery needs a fair amount of charging the led will go out. While the circuit is running the led indicates. 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 read more. Above diagram is the schematic of 6v gel cell battery charger.

Begins the charge period at 240ma and at full charge switches automatically to a float condition trickle charge of 12ma read more.