Resurrecting the flatline.
I looked up the specs on a replacement pack for the lead-acid batteries to swap in for the dead cells in the Flatline's UPS. Trying to find 12V12Ah units has been a wash locally - higher or lower, sure, but the form factor hasn't matched. I can match the size with a lower ampere-hour rating, but that will affect runtime.
If, that is, APC is telling me the truth...
I grew suspicious of the posted specs, and peeled the APC OEM labels off the batteries that came with the units.
Well, wouldja look at that. Huh. 7.2Ah.
Think I'll buy another two 9Ah units of the same physical dimensions to add to the first two I picked up for testing and call it an 'upgrade'. >.<
Resurrecting the flatline.
@Momentrabbit Wow. That's pretty damned egregious. Still, ultimately a win, despite their best marketing efforts.
re: Resurrecting the flatline.
@porsupah The enclosed hot-swap replacement unit they sell (for $250?!?) is a steel box containing four 12V batteries wired 2x2, parallel by serial, with 60A fuses between the serial packs, so technically - _technically_ - I suppose they can make a case for it being 'a' 24v 14.4Ah 'battery', and saying it uses 12V 12AH batteries is just forgetting to put a comma in between there. 9.9
re: Resurrecting the flatline.
@Momentrabbit Ahhhhh, okay.. that makes sense, though you'd think it'd be simpler just to use a single battery of an appropriate capacity. Maybe these smaller ones wind up cheaper?
re: Resurrecting the flatline.
@porsupah Individually easier to source and work with 'universal' 12v7.2Ah batteries, I'd think. They're a standard in (older) APC uninterruptable power supplies - the toaster-sized units with no displays hold one, the slender towers with an info display hold two, server rack units hold 4 or more - they probably reuse the control logic between different costs and capacities, too. Efficient manufacturing, they only have to buy 1 type and size of battery for an entire product line, and can pick from an army of suppliers.
Plus, they take the bad battery units in for exchange/recycling at corporate level, which I approve completely since that's lead and cadmium and all sorts of nasties. That said, if 3 'cells' are still good and one is fried, and the customer pays for a brand new 4 'cell' pack, well. Ka-ching...8
