Re: APC BR550GI Pro UPS not charging battery
So I have tested the UPS after the capacitors replacement and it seems to work.
Thank you @benq32...
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
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Re: APC BR550GI Pro UPS not charging battery
So I replaced c18 and c32 (i measured them after removal and they were about 300uf instead of 330uf).
Now I get 14.1v when no battery connected and get charging current (measured on the battery wires) of about 0.5A and battery voltage increasing slowly.
Is this charging current OK?
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Re: APC BR550GI Pro UPS not charging battery
Did you measure them (C18, C32) out of the board (removed from board)?
I meausred them on the board (they seem to be connected in parallel and got ~600uF (they are each marked as 330uF 35v). I will try and remove them and measure outside the board.
When I power up the UPS with no battery connected I get ~5.4v and a buzzing sound (see attached zipped video)...Last edited by theone111; 03-20-2022, 09:35 AM.
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Re: APC BACKUPS-RS550 not charging battery
Any luck finding and fixing? I have the same model and problem....
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APC BR550GI Pro UPS not charging battery
I have an APC BR550GI Pro UPS
[url]https://www.se.com/il/en/product/BR550GI/apc-powersaving-backups-pro-550/[/url]
The motherboard model I have in the UPS is the 640-1172A-Z_REV05
The problem I have is that my UPS does not seem to charge the battery when ON.
After charging the battery with an external battery charger and installing into the UPS (updating change date) the battery drains slowly ~7% every 12 hours [B]with no load connected[/B] (the PowerChute SW show decrease in jumps of ~7% not 1% decrements).
I think it does charge the...
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Re: APC BACKUPS-RS550 not charging battery
I have a similar problem with an APC BR550GI Pro UPS
[url]https://www.se.com/il/en/product/BR550GI/apc-powersaving-backups-pro-550/[/url]Re: APC BACKUPS-RS550 not charging b...pro-550/[/url]
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