Dallas Real Time Battery Hack Help \ VOGONS

Dallas Real Time Battery Hack Help

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First post, by GabrielKnight123

Posted on 2018-09-16, 16:47

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I have a motherboard with one of the built in batteries inside a real time chip I have the "Dallas DS12887A Real Time" chip and I have seen a video with one that looks very much the same

https://www.youtube.com/watch?v=NdlSfqto_0o

the pins are the same so is the above what I should shoot for? In another video they used a rechargeable 3v battery so im not sure which way to go, non rechargeable or rechargeable and should I remove some of the top of the chip to remove the old battery or just leave it in?

Reply 1 of 4, by wiretap

Posted on 2018-09-17, 11:03

wiretap Offline

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It's far easier just to install a DIP socket on the motherboard so you can either swap RTC's quickly, or mod the old RTC -- if you screw up you can just pop in a new one. Plus with a DIP socket, it will sell easier since buyers look for things like that instead of ghetto hacks. 🤣

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Reply 2 of 4, by GabrielKnight123

Posted on 2018-09-17, 11:44

GabrielKnight123 Offline

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Yes wiretap that is my thoughts too exactly and luckily the motherboard already has a DIP socket but I read or watched a video that says if you buy a new RTC with a battery there is no telling if its a good one or not and might only last for a short time I dont remember if the source was talking about ebay or some other place thats why I would like to try making it last for a long time with a battery clip that attaches to the RTC. If I go with the route of replacing the RTC does someone know of a place to get one that is reputable online?

Reply 3 of 4, by wiretap

Posted on 2018-09-17, 12:01

wiretap Offline

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I buy them off Ebay. Never had a bad one yet.

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Reply 4 of 4, by tannerstevo

Posted on 2018-09-17, 19:42

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If you live in the US, Mouser has them.
https://www.mouser.com/Search/Refine.aspx?Keyword=DS12887A
I got one from there and it was only a few months old. (They have a date code on them.)
Maxim makes the dallas RTCs now and they are the same. They even say dallas on them.

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