Is it necessary to charge a UPS battery for 24 hours? If yes, why?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
You can plug it in and set it up.
But it won’t deliver its full rated runtime until it’s fully charged. Yes, that might take 24 hours.
Why? There’s no good reason to build a high-speed charging circuit into a consumer-grade UPS. It’s going to have plenty of time to charge, or re-charge, before likely need. A simple, low current charging circuit will do the job at minimum cost.
That’s especially true if the UPS uses a lead-acid battery, which isn’t very fussy about charging. I’ve got good reason to believe that mine has a charging circuit that’s nothing more than a half-wave rectifier.