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TheMG
Premium
join:2007-09-04
Canada
kudos:2
reply to Thane_Bitter

Re: Looking for a desktop power backup

said by Thane_Bitter:

Have you ever opened it up?

Nope, never had a reason to.

said by Thane_Bitter:

If yours is a 48V DC unit (battery voltage) then this will apply to you.

Mine is 24V.


Thane_Bitter

join:2005-01-20
London

Thanks, ok then it should not be an issue in your UPS, the current through those resistors will be 1/4 of what it is on the 48volt model.



disconnected

@108.210.131.x

One thing that could be better about the new "Smart UPS" line is that the charge rate on the batteries is aggressive, and the batteries only last 3.5 years now. The older RM1200 that I used to have would go 7 years on a set of batteries and it ran cool. I have a 3000 VA Smart UPS now, but every 3.5 years, like clockwork, the batteries fail. And they run hot. Would love to lower the charge current to make it run cooler and get the battery life I enjoyed with my RM1200 years ago.