Whether you are working at home or in an office, maybe even just surfing the web on your day off, the last thing you want is your computer dying on you in the middle of something important. Fluctuations in power can harm your computer in the long run, and sudden blackouts can destroy hours of hard work and even your components. This is why so many people opt for an UPS, and it really is a good thing to have some back up, but what happens when your back up suddenly dies on you? Let’s take a look at some things you can do to prolong your UPS battery life and some things you should know about replacement batteries.

APC UPS Battery

Proper maintenance

If you don’t know how to use the UPS in way that it has been designed to be used for maximum efficiency, you will quickly find yourself in a very bad situation. If not properly cared for any device will brake down eventually, and you will go through quite a bit of devices in a short time.


Here are some things you can do to help the batteries last longer:

  • Leave a new UPS plugged in overnight before attaching any equipment – most people recommend leaving your UPS plugged in for 4-5 hours when you first purchase it, this however may not be sufficient and several more hours will ensure that your batteries perform much better.
  • When the UPS is fully charged run your computer on backup power for a while – unplugging your system from your main power source will make it switch to the UPS, some twenty to thirty minutes will be enough to deplete the battery to a minimal level and you should then plug the system back into main power at which point the batteries will start recharging.
  • If your computer is turned off you should turn off the UPS as well – leaving the UPS on when all the components hooked up to it are running serves no purpose other than shortening the life of your battery and that should be avoided.
  • Attach only the most necessary components – there is only so much a single UPS can do, it is a last line of defense and it is only there to keep your computer running a little while longer so any work in progress can be saved and the machine safely turned off, hooking up a surround sound system a fax machine and a printer will definitely overload the device.
  • Shut down your computer in about 10 to 15 minutes after the power goes out – people that have an UPS will often smile when there is a blackout thinking that they have all the time in the world to finish their tasks because of the backup power, some are even playing movies on their computer, and become upset when their monitor goes black after about half an hour; the UPS is only a temporary solution. Meaning, you should not wait until the battery is fully depleted, there is software with various settings regarding the UPS which you can use to program your computer to shut down automatically after a short period.
  • Place the UPS in a place with good ventilation and moderate temperature – batteries are like Goldilocks, if it’s too hot or too cold you will have problems with them, so if you want them to last longer be sure to provide the right conditions, if it’s too hot for you it’s probably too hot for the device.


UPS battery monitoring system

This is a great way to keep closer look on your batteries, it is wired into the system and performs regular voltage and resistance checks to ensure everything is working fine. It also records the ambient temperature of the battery and gives you a clear reading of all the different parameters. This device will ensure that you know when it’s time to use those replacement batteries so that you can replace them regularly to ensure the UPS is functioning at optimal levels.


Replacement batteries

The batteries used in commercially available, personal use UPS devices are Sealed Maintenance Free Acid Lead Batteries, and their longevity depends heavily on the proper utilization of charging and discharging and the frequency of these cycles, as well as room temperature. If maintained properly, as to the above specifications, they can last up to 4-5 years, so it is recommended that you buy replacement batteries when buying the UPS itself, that way you can service the device quickly and efficiently when the old batteries run out.


The UPS is a very important device, it is a last line of defense for your computer, and the heart and the soul of the device are the batteries. They can last quite a while if cared for, but replacement batteries have to be provided to ensure that everything will be running smoothly, so when you buy a UPS get an additional set of batteries and store them away – they will surely come in handy


Bleeping Tech Recommends APC BR1000G Back-UPS Pro 1000 Uninterrupted Power Supply