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    H Carr's Avatar
    H Carr Posts: 2, Reputation: 1
    New Member
     
    #1

    Oct 14, 2016, 09:08 AM
    Which is more 20000mah or 300000mah
    Will a 300000mah solar panel charge a 20000mah battery?
    H Carr's Avatar
    H Carr Posts: 2, Reputation: 1
    New Member
     
    #2

    Oct 14, 2016, 09:17 AM
    Which is more 20000mah or 300000mah
    Will a 5v /300000 mah solar panel charge a 12v lithium battery?
    joypulv's Avatar
    joypulv Posts: 21,593, Reputation: 2941
    current pert
     
    #3

    Oct 14, 2016, 09:22 AM
    H Carr, please move this to the Electrical category.
    smoothy's Avatar
    smoothy Posts: 25,495, Reputation: 2853
    Uber Member
     
    #4

    Oct 14, 2016, 09:53 AM
    Not to mention this sounds like a homework question.
    ebaines's Avatar
    ebaines Posts: 12,130, Reputation: 1307
    Expert
     
    #5

    Oct 14, 2016, 10:25 AM
    No, it won't. The capacity of the battery in mAH has nothing to do with whether it can be charged by a particular source - the important thing here is the voltage. The voltage of the output of the solar panel must be greater than the nominal voltage of teh battery you are trying to charge. And I don't understand the use of mAH terminology as you've applied it to the solar panel - the proper units is watts (i.e. power), or mA at 5 volts, not mAH. I suspect what you are looking at is the rating of a solar-powered charger with an integrated battery - so this is the energy that can be contained in that battery. In essence you are asking about using a battery to charge a battery - is that really what you want to do?

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