External battery on board that don't have headers for it \ VOGONS

External battery on board that don't have headers for it

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First post, by relo999

Posted on 2017-07-02, 16:50

relo999 Offline

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I was wondering if you could add an external battery pack to motherboards that don't support it. So is there some way to add one to a board that doesn't support it?
(I had ordered a Zida/Tomato board 4DVS but that does't seem to have the headers to support an external battery, which led me to this question)

Reply 1 of 6, by mrau

Posted on 2017-07-02, 20:12

mrau Offline

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can't You attach it where the barrel was?

Reply 2 of 6, by relo999

Posted on 2017-07-02, 20:43

relo999 Offline

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Not that I know of, my other motherboard does has one of those external battery headers but those don't seem to be directly connected to the battery. So I was wondering if it was possible to connect that up, maybe even with some added circuitry to compensate for it's non rechargability if that is even needed.

Reply 3 of 6, by mrau

Posted on 2017-07-02, 21:03

mrau Offline

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a diode imho and you're set, but i am a total noobastic so let's wait someone else's advice;

Reply 4 of 6, by gdjacobs

Posted on 2017-07-03, 03:02

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A 3x NiMH pack with leads soldered onto the terminals for the barrel battery should do the trick.

All hail the Great Capacitor Brand Finder

Reply 5 of 6, by relo999

Posted on 2017-07-03, 12:07

relo999 Offline

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I know a NiMH pack will work, but I want something more future proof like the AAA packs. (not to mention working away those packs look a lot neater)

Reply 6 of 6, by gdjacobs

Posted on 2017-07-03, 15:05

gdjacobs Offline

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Yes, whatever you use should definitely be tucked away so they don't leak onto anything if they fail. You can use a 3x NiMH pack for a cordless phone or 3x AA/AAA NiMH cells in a plastic holder. You can use non rechargeable cells in a plastic holder as well, but you will need a diode to prevent current flow into the batteries.

All hail the Great Capacitor Brand Finder

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