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 to c/selfhosted
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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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[–] [email protected] 2 points 1 year ago (1 children)

Additionally, if you where to drop a clamp or touch something by accident, it is most likely to contact negative, as that is the whole chassis. If you adhere to this order and drop the negative clamp, it will most likely just reconnect to negative. If you drop the positive clamp on the negative chassis nothing happens anymore, as you broke the circuit beforehand.

[–] [email protected] 2 points 1 year ago

That's a good point as well.