this post was submitted on 24 Jul 2023
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I replaced 12x 12v batteries in my UPS stack this weekend and ONLY insta-welded two connectors. (lemmy.world)
submitted 1 year ago* (last edited 1 year ago) by BobsAccountant@lemmy.world to c/selfhosted@lemmy.world
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I see this as an absolute win. Be careful, folks. Just because it's DC doesn't mean it won't cause serious damage.

Edit for Clarification: When done correctly, the batteries should not arc. My problem is I did not wire the array correctly the first and a-hem second times. It only cost me one battery, which is a lot cheaper than a trip to an American ER.

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[–] Cyber@feddit.uk 1 points 1 year ago (1 children)

Replaced the batteries?

I'm in the process of topping up the water in mine intending to refresh them... but you've made me think... I need to check them for deadshorts / opencircuit

And I thought you'd burnt a horrible groove in your finger!

[–] BobsAccountant@lemmy.world 1 points 1 year ago

Yeah these are the small, closed cell 12v batteries. Just make sure you have the circuit open until the very last step. Additionally, if you have an array of batteries, make sure you're paying attention to their configuration.