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APC UPS -- replace battery, or...?
On 01/13/2017 09:48 PM, Don Bruder wrote:
In article , "Percival P. Cassidy" wrote: I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? Perce Whether it's "worth it" or not would depend on how much you're willing to spend on the battery. Whether or not that will cure things, shrug no way for me to say. The battery is the most likely thing to be failing, but without a whole lot more information than you're likely going to be able to give online, there's no way to be certain that's truly the problem. If you can get your hands on a battery cheap, it's worth trying. If not... Ditch the Back-UPS and get a Smart-UPS off eBay--they're much easier on batteries. I collect the rebadged ones (IBM 750T) and stick Powersonic batteries in them. I have four running at the moment. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net |
APC UPS -- replace battery, or...?
I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not
particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? Perce |
APC UPS -- replace battery, or...?
In article ,
"Percival P. Cassidy" wrote: I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? Perce Whether it's "worth it" or not would depend on how much you're willing to spend on the battery. Whether or not that will cure things, shrug no way for me to say. The battery is the most likely thing to be failing, but without a whole lot more information than you're likely going to be able to give online, there's no way to be certain that's truly the problem. If you can get your hands on a battery cheap, it's worth trying. If not... -- Brought to you by the letter K and the number .357 Security provided by Horace S. & Dan W. |
APC UPS -- replace battery, or...?
On Friday, January 13, 2017 at 6:12:27 PM UTC-8, Percival P. Cassidy wrote:
I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case Those batteries have a ten-year life. If it is ten years or more old, and you need a UPS, just buy an APS replacement battery. They recycle the old one for you... |
APC UPS -- replace battery, or...?
whit3rd wrote:
Is it worth replacing the battery just in case Those batteries have a ten-year life. If it is ten years or more old, and you need a UPS, just buy an APS replacement battery. They recycle the old one for you... ** It's just a regular SLA battery ( aka gell cell) - right ? IME you are lucky to get more than 2 years out of one, specially when abused with massive, high current, short term discharges as here. If not charged regularly, the things self destruct in about 1 to 2 years from NEW through internal corrosion. As another poster has said, i'ts odds on the battery/s are stuffed. ..... Phil |
APC UPS -- replace battery, or...?
Percival P. Cassidy prodded the keyboard with:
I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? Perce Use your car battery for a test ! -- Best Regards: Baron. |
APC UPS -- replace battery, or...?
On 01/14/2017 06:07 AM, Phil Allison wrote:
Is it worth replacing the battery just in case Those batteries have a ten-year life. If it is ten years or more old, and you need a UPS, just buy an APS replacement battery. They recycle the old one for you... ** It's just a regular SLA battery ( aka gell cell) - right ? IME you are lucky to get more than 2 years out of one, specially when abused with massive, high current, short term discharges as here. If not charged regularly, the things self destruct in about 1 to 2 years from NEW through internal corrosion. As another poster has said, i'ts odds on the battery/s are stuffed. Yes, regular SLA battery. CSB branded on the end, with an APC label on the front. As I stated in my original message, there is no indication that the battery needs replacing -- BUT now that I look at the thing closely, there is no sign of the "Replace Battery" indicator that, according to the user guide, is supposed to flash when the battery needs replacing: it simply does not exist. I don't remember when or where I bought this UPS; could it be a dumbed-down-for-sale-in-discount-stores variant -- but still with the same model number? Perce |
APC UPS -- replace battery, or...?
On 01/14/2017 12:01 PM, Percival P. Cassidy wrote:
Is it worth replacing the battery just in case Those batteries have a ten-year life. If it is ten years or more old, and you need a UPS, just buy an APS replacement battery. They recycle the old one for you... ** It's just a regular SLA battery ( aka gell cell) - right ? IME you are lucky to get more than 2 years out of one, specially when abused with massive, high current, short term discharges as here. If not charged regularly, the things self destruct in about 1 to 2 years from NEW through internal corrosion. As another poster has said, i'ts odds on the battery/s are stuffed. Yes, regular SLA battery. CSB branded on the end, with an APC label on the front. As I stated in my original message, there is no indication that the battery needs replacing -- BUT now that I look at the thing closely, there is no sign of the "Replace Battery" indicator that, according to the user guide, is supposed to flash when the battery needs replacing: it simply does not exist. I don't remember when or where I bought this UPS; could it be a dumbed-down-for-sale-in-discount-stores variant -- but still with the same model number? It works with a different (but not new) battery. Perce |
APC UPS -- replace battery, or...?
"Percival P. Cassidy" wrote in message ... I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? A UPS I bought had an energy saving feature that prevented it operating if the load was under a specified value. The last battery problem I had involved a battery that seemed to be OK, but the UPS played dead. All tests suggested the battery was good - but it was sluggish turning over a motorcycle starter. |
APC UPS -- replace battery, or...?
"Phil Allison" wrote in message ... whit3rd wrote: Is it worth replacing the battery just in case Those batteries have a ten-year life. If it is ten years or more old, and you need a UPS, just buy an APS replacement battery. They recycle the old one for you... ** It's just a regular SLA battery ( aka gell cell) - right ? IME you are lucky to get more than 2 years out of one, specially when abused with massive, high current, short term discharges as here. High current will take a toll - but the batteries last longer if you have frequent outages. If its only ever float charged; the distilled water eventually gasses away - the more concentrated H2SO4 left behind sulphates the plates. |
APC UPS -- replace battery, or...?
On Saturday, January 14, 2017 at 7:43:01 AM UTC-5, Baron wrote:
Percival P. Cassidy prodded the keyboard with: I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? Perce Use your car battery for a test ! -- Best Regards: Baron. NOT if your car has a 'brain'. Removing the battery will remove much of the 'learning' it does, wipe the radio code (do you remember where that is?), wipe out any sync, and, perhaps, wipe some of the operational updates (there are always some) that have been done on the car since it was first programmed at the factory. Peter Wieck Melrose Park, PA |
APC UPS -- replace battery, or...?
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APC UPS -- replace battery, or...?
On Sunday, January 15, 2017 at 8:43:08 AM UTC-5, Baron wrote:
prodded the keyboard with: On Saturday, January 14, 2017 at 7:43:01 AM UTC-5, Baron wrote: Percival P. Cassidy prodded the keyboard with: I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? Perce Use your car battery for a test ! -- Best Regards: Baron. NOT if your car has a 'brain'. Removing the battery will remove much of the 'learning' it does, wipe the radio code (do you remember where that is?), wipe out any sync, and, perhaps, wipe some of the operational updates (there are always some) that have been done on the car since it was first programmed at the factory. Peter Wieck Melrose Park, PA He doesn't have to remove the battery, just use jumper leads to test the UPS. -- Best Regards: Baron. Really? We have established that the UPS is not working. What if the "not working" has nothing to do with the battery? Now you are connecting one system - defects unknown - to another system not (yet) defective, directly. Smart move! Peter Wieck Melrose Park, PA |
APC UPS -- replace battery, or...?
"Baron" wrote in message ... prodded the keyboard with: On Saturday, January 14, 2017 at 7:43:01 AM UTC-5, Baron wrote: Percival P. Cassidy prodded the keyboard with: I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? Perce Use your car battery for a test ! -- Best Regards: Baron. NOT if your car has a 'brain'. Removing the battery will remove much of the 'learning' it does, wipe the radio code (do you remember where that is?), wipe out any sync, and, perhaps, wipe some of the operational updates (there are always some) that have been done on the car since it was first programmed at the factory. Peter Wieck Melrose Park, PA He doesn't have to remove the battery, just use jumper leads to test the UPS. If cell internal resistance can be an issue, the resistance of jumper leads probably can be too. |
APC UPS -- replace battery, or...?
On 01/15/2017 09:37 AM, wrote:
On Sunday, January 15, 2017 at 8:43:08 AM UTC-5, Baron wrote: prodded the keyboard with: On Saturday, January 14, 2017 at 7:43:01 AM UTC-5, Baron wrote: Percival P. Cassidy prodded the keyboard with: I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? Perce Use your car battery for a test ! -- Best Regards: Baron. NOT if your car has a 'brain'. Removing the battery will remove much of the 'learning' it does, wipe the radio code (do you remember where that is?), wipe out any sync, and, perhaps, wipe some of the operational updates (there are always some) that have been done on the car since it was first programmed at the factory. Peter Wieck Melrose Park, PA He doesn't have to remove the battery, just use jumper leads to test the UPS. -- Best Regards: Baron. Really? We have established that the UPS is not working. What if the "not working" has nothing to do with the battery? Now you are connecting one system - defects unknown - to another system not (yet) defective, directly. Smart move! Peter Wieck Melrose Park, PA It would have to be a pretty small car battery for a 750 VA UPS to do any harm to the car. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net |
APC UPS -- replace battery, or...?
On Monday, January 16, 2017 at 10:22:11 AM UTC-5, Phil Hobbs wrote:
It would have to be a pretty small car battery for a 750 VA UPS to do any harm to the car. I am thinking more of some level of dead-short or similar. Peter Wieck Melrose Park, PA |
APC UPS -- replace battery, or...?
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APC UPS -- replace battery, or...?
"mike" wrote in message ... On 1/16/2017 9:01 AM, wrote: On Monday, January 16, 2017 at 10:22:11 AM UTC-5, Phil Hobbs wrote: It would have to be a pretty small car battery for a 750 VA UPS to do any harm to the car. I am thinking more of some level of dead-short or similar. Peter Wieck Melrose Park, PA Have you tried the power interrupt with a very light load, like a 4W night light? That might give you a clue whether the system will run with a new battery. Use a voltmeter to measure the voltage on the UPS battery when unloaded. Turn on the system, do the power interruption and see what the battery voltage does. Try it with a very light load. If you're paranoid, put a 20 amp fuse between the car battery and ups battery. Another option is to hook a car headlight or some other heavy load directly to the UPS battery to see if it is good. I've seen some pretty clapped out batteries light a H4 headlamp bulb with no problem - its not a reliable test. A UPS battery should turn over a typical motorcycle starter without any sign of being sluggish. Some UPS units play dead if there's high internal cell resistance. Another point many overlook - Ah capacity falls as current draw rises. |
APC UPS -- replace battery, or...?
On Friday, January 13, 2017 at 10:12:27 PM UTC-4, Percival P. Cassidy wrote:
I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? Perce I usually slap on a used auto battery with cable extension to get a couple hours backup on my PC. |
APC UPS -- replace battery, or...?
On 01/22/2017 11:00 AM, Ancel UnfetteredOne wrote:
I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? I usually slap on a used auto battery with cable extension to get a couple hours backup on my PC. A few years back I read that one should not do this with consumer-grade UPSes because they have no cooling and are designed so that during the short time the standard battery lasts they will not reach an unsafe temperature. Anyway, I replaced the battery by a used one from another UPS, and all seems to be fine. Perce |
APC UPS -- replace battery, or...?
"Percival P. Cassidy" wrote in message ... On 01/22/2017 11:00 AM, Ancel UnfetteredOne wrote: I have an APC Back-UPS ES 750 to which I have plugged in my PVR (a not particularly high-powered computer, and with only one HD). It is not indicating that the battery is dead and needs replacing, but whenever the power goes off, even for just a second or two, the UPS indicates that it is overloaded (no indicator lights, and continuous sound). Is it worth replacing the battery just in case, or is this thing ready for the recyclers? I usually slap on a used auto battery with cable extension to get a couple hours backup on my PC. A few years back I read that one should not do this with consumer-grade UPSes because they have no cooling and are designed so that during the short time the standard battery lasts they will not reach an unsafe temperature. All I've seen so far had "snapper disk" thermal cutouts. Don't know the correct name, but usually a small bakelite cylinder with a swaged on aluminium cap and 2x 1/4" spade terminals and are usually mounted by a loose flange with 2 screw holes. The active bit is a bi-metal disk that is bowed, it snaps to bowed the other way when it gets hot. You'll always find one on the magnetron/fan duct housing in a microwave oven, they can turn up in pretty much anything that could overheat. |
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