UPS with external batteries are not sleek nd is hard to transport, but does its job gr8ly, at lower cost. Some tubular batteries has to be maintained[sub 3k ones] with distilled water every 6months or so.
A tubular battery is like this:
These are big. Bigger than Bus bateries. Almost twice as big nd has 12v with 200A, 350A nd 500A versions. But UPS batteries are 12v with 7A to 12A capacities.
And Inverters are for other electronic equipments. There is not much problem is there is a small delay in between the swithching from mains to inverter when power fails. But for a PC, it does nd might restart. And most inverters give square wave type wave outs which is bad for some equipments especially for computers in long run.
A sine wave inverter produces waves similar to the wave we get from the mains, so no problems there and even PC cud work charmlessly. But even Sine wave inverters have a small delay while switching. To be more precise, most sine wave inverter will produce a delay of a half wave in time of switching, which is enuf for a PC to restart. But if u have a high quality PSU, it wont matter.
Inverters dun produce ny delay while switching[which makes them more expensive], but have limited backup, due to size limitation.
A gud PSU cud make up the delay produced due to the delay of that half wave in Sine Wave inverter. Gud PSu's have high power capacitor inside it, which is enough to compensate for that delay. Ive personnaly tested it nd have done a small research on the issue b/w ma PC, PSU, UPS nd inverter nd now ive solved it.
Now im getting more than 10Hrs of backup.
APC UPS 820w or 1000W?
pls bear)
Linear Mode
