On Sat, 2024-02-10 at 08:57 -0500, Felix Miata wrote: > hw composed on 2024-02-10 11:01 (UTC+0100): > > > On Fri, 2024-02-09 at 22:28 -0500, Felix Miata wrote: > > > > Those from the above URL are the same spec batteries used in many APC > > > models. > > > Maybe, maybe not. I couldn't get replacement batteries for the UPS > > from HP not only because HP was so ridiculous as to tell me that I > > could pay for a support ticket to get a price for the batteries, but > > also because the replacement batteries I could get had smaller > > contacts. > > Contact size is part of an SLA battery's specs. Small contacts are > terminal type "F1". I've never encountered a UPS that uses them. All > I've encountered use terminal type "F2", which is 1/4" or about > 6.35mm wide spade.
I don't remember how wide the contacts are the UPS from HP uses. 6.35mm is probably a common size, same as yellow connectors use. There are connectors of the same type that are wider than that. > > At least you have some cooling. Basically nobody here has that, > > though it's probably becoming more widespread because it gets warmer > > all the time, and it's unbearable in the summer. Electricity is > > insanely expensive here and keeps getting more expensive all the time. > > It's a big planet. Where is your "here"? Germany > > Hm, if the OEM batteries actually lasted 5 years and if what you say > > is true, they must have been some awesome batteries. That UPS takes > > two batteries which are tightly packed, and they can get very warm. > > OEM batteries must hold up through warranties, so are probably more > locally sourced for high quality rather than low cost from > China. Less expensive UPS models might be designed for a shorter > expected lifetime, overcharging more as they get older and heat > takes its toll. It's not something very many consumers are equipped > to test. The cheap APC models seem to produce a lot more heat, and their batteries don't seem to last as long. They work and they're not really a good deal. I don't have test equipment for UPCs, but you can feel how warm they get and see how cheaply they're built without special equipment.