ArchonSoft
Programmer
what is the average battery life of UPS?
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average battery life 1
- Thread starter ArchonSoft
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Most of them last for about 5-30 minutes, long enough for you to save your data and turn the computer off, work through a short blackout, or move the computer. You can put together a system on your own that will get you more time, but don't look into this unless you feel like reading up on the products involved (batteries, inverters, etc.).
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ArchonSoft
Programmer
Thank's but i mean how long the battery will work properly until it cannot be recharge anymore
The typical life of a lead-acid battery is about 400-500 cycles; if you don't have to deal with frequent blackouts, the battery would probably last a while. It depends not only on how many cycles you put it through, but also how much you draw from the battery. If you run the battery completely down, the number I mentioned earlier will be less. It also depends on the quality of the battery, but for one that would probably be used in a UPS, that should be about right. Keep in mind that this is for lead-acid batteries; other types might be different.
AlexandreAmant
IS-IT--Management
If you have very short and non-frequent power outages, you can hope to keep the same UPS for about 5 years.
If you are in an area with long and frequent power outages (I am in Kenya...), an UPS will last you max. 3 years.
High-end UPS have now the facility of having user-changeable batteries, while for low-end ones, you'd better buy a new UPS, cheaper and with better performances than the previous one.
I always advise to make a real test by unplugging your equipement and wait until you hear the critical beeping saying that the UPS will die soon (at that point you plug back to be sure not to crash your system). Keep track of the time it last and do this about every 3 or 6 months and you should see the evolution of the life of your UPS.
Ask for more if you need !
@lex
If you are in an area with long and frequent power outages (I am in Kenya...), an UPS will last you max. 3 years.
High-end UPS have now the facility of having user-changeable batteries, while for low-end ones, you'd better buy a new UPS, cheaper and with better performances than the previous one.
I always advise to make a real test by unplugging your equipement and wait until you hear the critical beeping saying that the UPS will die soon (at that point you plug back to be sure not to crash your system). Keep track of the time it last and do this about every 3 or 6 months and you should see the evolution of the life of your UPS.
Ask for more if you need !
@lex
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- #6
proximacentauri
Technical User
Hi All
UPS batteries are a gel type sealed lead acid cell.
The majority of those used in UPS are of the cheap variety
and cannot handle deep cycle discharging.
By this i mean that the battery gets discharged below it's
threshold of around 10.5 vdc for a 12volt battery.
The life of the battery depends entirely if this occurs,how often and the quality of the cell.
Sonneshien batteries are about the only battery guaranteed to do 500 plus cycles but this is only if they are charged for deep cycle use. Now thats another story all together.
What i am trying to say in a long winded way is that the MAJORITY of UPS batteries will fail after being deep cycled more than a handfull of times and to that end the life in years can be hard to judge.
Batteries in an UPS are charged at float votage not at deep cycle voltage and this is why they fail readily when deep cycled.
13.8 volts is float and 14.2 volts is deep cycle charge
and of course this is for 12 volt batteries.
I hope this helps
UPS batteries are a gel type sealed lead acid cell.
The majority of those used in UPS are of the cheap variety
and cannot handle deep cycle discharging.
By this i mean that the battery gets discharged below it's
threshold of around 10.5 vdc for a 12volt battery.
The life of the battery depends entirely if this occurs,how often and the quality of the cell.
Sonneshien batteries are about the only battery guaranteed to do 500 plus cycles but this is only if they are charged for deep cycle use. Now thats another story all together.
What i am trying to say in a long winded way is that the MAJORITY of UPS batteries will fail after being deep cycled more than a handfull of times and to that end the life in years can be hard to judge.
Batteries in an UPS are charged at float votage not at deep cycle voltage and this is why they fail readily when deep cycled.
13.8 volts is float and 14.2 volts is deep cycle charge
and of course this is for 12 volt batteries.
I hope this helps
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