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Uninterruptible power supply for 12V Wifi, Router etc

  • 17-09-2020 12:14pm
    #1
    The Continental Op
    Registered Users, Registered Users 2 Posts: 7,094 ✭✭✭


    Anyone seen any plans or ready made units for supplying 12V in a power cut and will automatically cut in and provide power from a 12V battery?

    Strange reason I want this but I get my internet (via Wifi) from a neighbor who is on a totally different mains supply so when we loose power they normally still have power. Our supply is much more subject to outages.

    So far my ideas are to use a APC UPC and just tap straight off the battery , assume that will work without the battery charging electrics interfering or to get a custom built unit. As I'd need at least two I was looking around in case there are some published circuit diagrams and plans to make something cheaper?

    I'd post links but as a new user I can't. youtube has one idea I might use search for Ultimate Battery Backup Hack/Mod and there is an interesting video How to Make Full Automatic 12V UPS for Internet/Wi-Fi Router (V1.0).

    Amazon have a couple of suitable devices but they don't have the run time I was looking for.

    Wake me up when it's all over.



Comments

  • #2
    Johnboy1951
    Registered Users, Registered Users 2 Posts: 14,031 ✭✭✭✭Johnboy1951


    Yes they are available ....... example

    https://www.hw-group.com/accessory/ups-12v

    or a DIY project

    https://www.youtube.com/watch?v=IlEnEn7ptmc


  • #3
    The Continental Op
    Registered Users, Registered Users 2 Posts: 7,094 ✭✭✭The Continental Op


    Thanks, seen the youtube one but for some reason was thinking more about using a 12V gel battery for backup power. I'll research the other link can't find anyone selling the HW-Groupd stuff.

    But think I've finally found what I'm looking for

    banggood.com/YX850-Power-Failure-Automatic-Switching-Standby-Battery-Lithium-Battery-Module-5V-48V-Emergency-Converter-p-1594242.html?rmmds=search&cur_warehouse=CN

    which seems to do most of what I want and I found some projects where its working with a decent sized gel battery.

    Wake me up when it's all over.



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