Need a charging circuit for 12V 7.2Ah Amaron Quanta Lead acid Battery

[tpetar]

Often, peoples dont know how something will work practically in real environment, calc is made all checked but, often is needed prototype for testing. Real environment usage showup what is needed to change and what is ok.

Yes try that like you say, but with new battery this what you have is bad, you discharge battery at 8V level.

 

[cmsrlabs]

i tried this just to check any change in performance of battery.

Any suggestion to design circuit as per post 29

 

[cmsrlabs]

Hello

I have tested the circuit by setting charging 13.8 Volt and seems battery takes approx 15 hours to fully charged from 10.8 Volt. At 10.8 Volt the charging current is 400mA.
then i increased the charging voltage to 14.5 Volt with current 700mA along with cutoff at 13.8 Volt, then battery gets fully charged in 6 hours.

So is there any harm on battery by increasing charging voltage along with cut off at 13.8 volt

 

[tpetar]

Read manufacturer datasheet all is there.

 

[cmsrlabs]

Actually i want to design circuit which can gives best result in all batteries from all manufacturers.
send me circuit at cmsrlabs@gmail.com

 

[Osama Javed]

Hello cmsrlabs,
Can you kindly send me the PIC Microcontroller circuit that you made for lead-acid battery charging circuit?
I want that circuit for my project.
Thanks.

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