Recently the battery in my APC Back-UPS 300 died (no longer holds enough charge to power my desktop).
I am trying to decide whether to replace the battery, get a new unit, or what.
(This is a home office computer in a city with pretty reliable power - just needs to power long enough to get over the occasional short power dip, or enough time to save work in a blackout.)
The replacement batteries are $40 from APC, though less expensive ones may be available from other names. (But don't know good brands.)
Replacement UPSs start at about $50 (one of those cases where most of what you are paying for is marketing/distribution/etc., and not the actual product, I guess).
How much power does a typical consumer grade UPS use?
Some of the newer UPSs make claims of "Greenness", but I haven't been able to find comparisons of how much power does a small UPS use, or comparisons of older models (Like the Back-UPS 300, or Back-UPS ES 500) with current ones. Are these Green claims just marketing fluff?
If newer UPSs are more efficient, how much (how much less energy use compared to older model)?
Is it enough to make a significant difference in energy use in a typical home or office user setting, where most of the time the computer is off, computer is on for a few hours a day, and blackouts are rare.
(e.g., Would the power savings from a new unit offset the additional cost of the new unit?
Would it be greener to stick with the UPS I have and replace the battery - considering all the energy involved in manufacture/disposal/etc. of the UPS?)
My computer has an older power supply (Nexus NX3500) - less energy efficient. I have been considering updating to more efficient model.
Since a UPS is really just an AC-DC converter/battery charger/inverter and some switching, it seems like a poor design for today's PCs (since LCD monitors just need a DC supply). Seems like should do it AC-DC converter/battery charger/DC-DC converter (like a PicoPSU) to supply other computer voltages (and to power LCD). (Similar to the Google's servers
but adding an output for an LCD monitor and/or external hard drives. )
I found the battery charger unit sold by minibox, but it doesn't seem to be designed to work with the regular PicoPSU - e.g. needs higher input voltage.
Are there similar solutions where the pieces come together (so you don't have to piece everything together yourself)?
Are there published examples where somebody has worked out the details of getting something like this to work.
How efficient would that be, compared to stand-alone UPS and power supply?