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Bi-mode (Solar-115VAC input) 12V battery charger

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  • SunEagle
    replied
    Originally posted by J.P.M. View Post

    A typo . Actually -40 F.
    Actually I have seen that -40C requirement before. My guess it is for use somewhere in the Alps or high mountain region.

    Leave a comment:


  • adoublee
    replied
    How about 233.15K

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  • J.P.M.
    replied
    Originally posted by jflorey2 View Post
    Very funny!
    Only for those who know why.

    Worst case: No harm done.

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  • jflorey2
    replied
    Originally posted by J.P.M. View Post
    A typo . Actually -40 F.
    Very funny!

    Leave a comment:


  • J.P.M.
    replied
    Originally posted by adoublee View Post
    -40C? You sure?
    A typo . Actually -40 F.

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  • adoublee
    replied
    -40C? You sure?

    Leave a comment:


  • francoisB
    started a topic Bi-mode (Solar-115VAC input) 12V battery charger

    Bi-mode (Solar-115VAC input) 12V battery charger

    I am doing a small cellular transceiver that needs to work from AC 115V input or from solar panels (in the case of 115V failure), and on battery during nights and cloudy period.
    Working Temperature range: -40C to +50C
    Charging current between 2 and 10 amps on a 12V gel cell type
    minimum : 3 stages charger

    Does this charger exist?

    Else, can a simple adaptor circuit "AC115V to DC18V" feed a standard solar MPPT charger using the solar panel input ? Does such device exist ?

    Please, let me know
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