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Solar Charger? Answered

Hi everyone!

i want to build solar powered charger... i already build ups system using old computer system ups...
configuration : 650va ups with 12v 35ah  battery. The battery is deep cycle one and should be charged in 8 hrs of good sun light....

so how many solar cells i need to buy and describe the calculation? Best online shop to buy a cheap and best cells ?

Thanks in advance...

5 Replies

steveastrouk (author)2013-02-20

8 hours, to deliver shall we say 40ah, thats 5a/hour x 8. So you need a panel that can deliver 5A@14V. You're lucky to have the sun as a resource !


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Here are a couple of options.

Buy this panel new for about $80.

Or get the same panel used off ebay for $17

It's rated for 10W 12V@5A but the output will vary from 10V to 17V.

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arshanmugam (author)steveastrouk2013-02-21

Thanks you.. i want to build my own solar panel... so if you know any seller to buy 6x6 ploy solar cells at cheap price tell me....

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