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post #3 of (permalink) Old 12-31-2018, 03:30 PM - Thread Starter
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Quote: Originally Posted by AllenG View Post
The lower end ones click in fully whenever the voltage goes out of range
that's the offline UPS you're talking about (aka. standby UPS) not line-interactive

there's 3 types of UPS:

- offline (the low end cheapest)
- line-in
- online (most expensive)

we already know that batteries of both online & line-interactive UPS last longer than those of offline UPS

The on-line ups's only draw what they have to from the battery system, to make up the difference.
same for the line-interactive ones they too can regulate voltage without using the battery

hence my question: do batteries from online UPS also last longer than those of line-interactive (not offline) UPS?

and if so why?
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