[Tfug] FTGH: APC Back-UPS Pro 650

[Rich]

On Apr 19, 2007, at 8:54 pm, Adrian wrote:

> So an 8Ah battery
> theoretically could supply 8amps for 1 hour... in reality, it could  
> supply
> something closer to 0.4amps for 20 hours.
Well great in theory and all that, but if UPSs were designed to run  
at 0.4A or even 8A, they wouldn't sell many. (You want a UPS for your  
alarm clock?)

> At a high discharge rate, its capacity is drastically reduced.
And so are the losses relative to the power supplied.

Lead acid batteries are very good at high discharge. (I imagine  
that's how they were discovered. *BANG!* "What was that?" "My  
fingernails")

Besides, it's not up to Sean whether he puts them in series or  
parallel. That was APC's decision. Without ripping the lid off, I  
guess shoving a continuity tester in there somewhere would give you  
the answer. A red-black beep means series. A black-black or red-red  
beep means parallel. Highly entertaining stuff and completely...  
interesting.

R.