This spells trouble for many electronic devices. Without consistent power supply or without stable voltage, your latest gadget could fry within seconds if it is left unprotected. That's why computer shops and office supply stores near my area sell a lot of surge protectors, voltage regulators, and uninterruptible power supply (UPS) units.
My preference will always be UPS+surge protector units like APC's Back-UPS ES 500. They give me a few crucial minutes to shutdown my computers and other devices properly; hence, reducing the chance of data loss or equipment damage. But the batteries within these UPS units are typically not heavy duty and do not last long against the constant voltage changes. So if you find that your UPS unit dies out and it is no longer under warranty, don't think you have to totally replace it. You may just need to change the battery. You can still save it by buying a battery replacement.
Steps on how to fix it
- Unplug all devices, unplug the UPS unit, and make sure it is fully drained (no battery life, doesn't turn on).
- Buy a 12v9Ah/20HR battery from any hardware store (note: your UPS unit maybe different from mine and the battery unit might be different). In this case, I bought an Akari branded battery.
- Get a Philips screwdriver and unscrew the 5 screws from the bottom part of the UPS unit.
- Take note and remember the placement of the two power plugs - red and black - that you see on the old battery.
- Remove those power plugs and replace the old battery.
- Screw it back on and put in the screws back in place (wait 15 minutes before plugging in anything new into the sockets).
Viola! Your UPS unit should be fully working like new. If it still does not function, you either did it wrong or there's other issues with the unit.
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