Request Assistance re/ Tight Squeeze
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Greetings & Kind Regards My APC UPS BN900M needs to have its battery replaced. However removing the battery currently within is proving to be difficult as it refuses to budge more than a few millimeters as it seems to be swollen and so is squeezed within its' compartment. May I please solicit suggestions. Thank You Kindly "If you try to fail, and succeed, which have you done?" - George Carlin
As far as i know, Absorbed Glass Mat, lead acid batteries are sealed, but internally vented, and do not swell like LIPOs. Is it possible ye missed a fastener, screw, clip, or slide-groove, or possible spot of glue securing the battery? Latex gloves and safety glasses are your friends. Not much to lose prying it out, after double checking for fasteners. There may be .pdf instructions on apc support site, google, or a youtube video. They are designed to be replaceable. Unless thrashed, seems wasteful to simply bin it.
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Greetings & Kind Regards My APC UPS BN900M needs to have its battery replaced. However removing the battery currently within is proving to be difficult as it refuses to budge more than a few millimeters as it seems to be swollen and so is squeezed within its' compartment. May I please solicit suggestions. Thank You Kindly "If you try to fail, and succeed, which have you done?" - George Carlin
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Methinx it aint swollen methinx it's glued
"If we don't change direction, we'll end up where we're going"
possible, but what retard company would do that? Oh, wait, Apple, Samsung, etc. Don't get me started on my front loader high efficiency whirlpool washer that you have to disassemble the front to get to the filter....
Charlie Gilley “They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759 Has never been more appropriate.
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Greetings & Kind Regards My APC UPS BN900M needs to have its battery replaced. However removing the battery currently within is proving to be difficult as it refuses to budge more than a few millimeters as it seems to be swollen and so is squeezed within its' compartment. May I please solicit suggestions. Thank You Kindly "If you try to fail, and succeed, which have you done?" - George Carlin
Anyone ever heard about ups' losing their surge protection? I've been told the MOVs break down over time due to surges you never see. Eventually, they loose their ability to control surges.
Charlie Gilley “They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759 Has never been more appropriate.
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possible, but what retard company would do that? Oh, wait, Apple, Samsung, etc. Don't get me started on my front loader high efficiency whirlpool washer that you have to disassemble the front to get to the filter....
Charlie Gilley “They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759 Has never been more appropriate.
charlieg wrote:
Don't get me started on my front loader high efficiency whirlpool washer that you have to disassemble the front to get to the filter....
When I was a student I owned a Citroen "car." One day when I wanted to change the plugs, it took me half a day and more engine parts on the floor than in still in the engine compartment before I could get at them! Funnily enough, never had another Citroen!
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Greetings & Kind Regards My APC UPS BN900M needs to have its battery replaced. However removing the battery currently within is proving to be difficult as it refuses to budge more than a few millimeters as it seems to be swollen and so is squeezed within its' compartment. May I please solicit suggestions. Thank You Kindly "If you try to fail, and succeed, which have you done?" - George Carlin
Had that on rack mount units. BFFI (brute force, ignorance), or get a new unit. As others have said, careful not to puncture.
>64 It’s weird being the same age as old people. Live every day like it is your last; one day, it will be.
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Anyone ever heard about ups' losing their surge protection? I've been told the MOVs break down over time due to surges you never see. Eventually, they loose their ability to control surges.
Charlie Gilley “They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759 Has never been more appropriate.
Well, "it all depends" (management 5th amendment). MOV's are typically rated in joules (sp?). If that is exceeded, like by lightening, they are toast. Most stand alone surge protectors, like on my pool pump circuit, have LEDs that indicate status. I have not seen a UPS that has one. Not that I have seen that many. I would guess, but don't know, that if nothing in your place, that is not on the UPS, has blown it is probably OK. OTOH, if your pacemaker is powered by the UPS, you might want to add an additional MOV :)
>64 It’s weird being the same age as old people. Live every day like it is your last; one day, it will be.
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charlieg wrote:
Don't get me started on my front loader high efficiency whirlpool washer that you have to disassemble the front to get to the filter....
When I was a student I owned a Citroen "car." One day when I wanted to change the plugs, it took me half a day and more engine parts on the floor than in still in the engine compartment before I could get at them! Funnily enough, never had another Citroen!
do they still make those? in all fairness, there were a few American vehicles that had spark plugs up against the firewall. Those designers, engineers, and managers are burning in hell changing those spark plugs. :) Don't get me started with Honda oil filters located on the backside of the engine, up against the firewall, and over the exhaust manifold. Whoever came up with that needs to be caned. Any Singapore's here?
Charlie Gilley “They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759 Has never been more appropriate.
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Well, "it all depends" (management 5th amendment). MOV's are typically rated in joules (sp?). If that is exceeded, like by lightening, they are toast. Most stand alone surge protectors, like on my pool pump circuit, have LEDs that indicate status. I have not seen a UPS that has one. Not that I have seen that many. I would guess, but don't know, that if nothing in your place, that is not on the UPS, has blown it is probably OK. OTOH, if your pacemaker is powered by the UPS, you might want to add an additional MOV :)
>64 It’s weird being the same age as old people. Live every day like it is your last; one day, it will be.
smart a$$. I'm still laughing. but no, my UPS on it's second set of batteries (likely needs a third) has no indicators at all which struck me as odd. As an EE, I'm not sure how you would test an MOV (not my specialty) to see if it's still working. Technically, you'd be wearing it out one test at a time. And, you'd have to generate a really high voltage pulse to do so...
Charlie Gilley “They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759 Has never been more appropriate.
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Greetings & Kind Regards My APC UPS BN900M needs to have its battery replaced. However removing the battery currently within is proving to be difficult as it refuses to budge more than a few millimeters as it seems to be swollen and so is squeezed within its' compartment. May I please solicit suggestions. Thank You Kindly "If you try to fail, and succeed, which have you done?" - George Carlin
Turn the unit over and let gravity, along with a few whacks, help drop the battery out.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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smart a$$. I'm still laughing. but no, my UPS on it's second set of batteries (likely needs a third) has no indicators at all which struck me as odd. As an EE, I'm not sure how you would test an MOV (not my specialty) to see if it's still working. Technically, you'd be wearing it out one test at a time. And, you'd have to generate a really high voltage pulse to do so...
Charlie Gilley “They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759 Has never been more appropriate.
Quote:
Technically, you'd be wearing it out one test at a time.
Back about 200 years ago, in technology time, we had a 200V plate voltage supply with a 1/4 amp fuse. Multimeters, in those days, pulled more than that on ohm scale. Therefore, some new techs had trouble finding a good fuse. WARNING: 2 million ohms!!! :)
>64 It’s weird being the same age as old people. Live every day like it is your last; one day, it will be.
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Quote:
Technically, you'd be wearing it out one test at a time.
Back about 200 years ago, in technology time, we had a 200V plate voltage supply with a 1/4 amp fuse. Multimeters, in those days, pulled more than that on ohm scale. Therefore, some new techs had trouble finding a good fuse. WARNING: 2 million ohms!!! :)
>64 It’s weird being the same age as old people. Live every day like it is your last; one day, it will be.
first job I had, we had a very well seasoned ee - Frosty. He was feisty. I learned to control my sarcasm around him (almost got punched one day). Turns out he was faster than he looked... lol, anyway, he was trying to trace down some spurious noise on a control board coming off some factory production line. The ground lines were getting in the way, so he removed all of those to isolate the noise.... As he's looking at the scope, he glances over to see insulation dripping off his probes :). There goes a 20k oscilloscope... you youngsters, I envy you. You can go out to Amazon and buy for $50 bucks what we had to beg for in the past. For the record, I'm not judging Frosty. After one year, the union electricians came to love me. I blew up more crap than I could count - they got overtime, and I got the nickname "Sparky".
Charlie Gilley “They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759 Has never been more appropriate.
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Greetings & Kind Regards My APC UPS BN900M needs to have its battery replaced. However removing the battery currently within is proving to be difficult as it refuses to budge more than a few millimeters as it seems to be swollen and so is squeezed within its' compartment. May I please solicit suggestions. Thank You Kindly "If you try to fail, and succeed, which have you done?" - George Carlin
I've had the same problem. I would just turn it over and thump it onto the floor. A thin mat would save the finish on floor and UPS a bit. I don't remember needing a lubricant in the past, but feel free to use penetrating oil or even butter. I have used files to enlarge the battery compartment before reassembly, not all of the batteries are the same size.