funny blog or something idk lol
for me to keep track of the stupid shit I do
Post #13
208

today's ($10) gamble: an APC Smart-UPS 750 (from the previous generation, i.e. the SUA750I)
seller says it doesn't power up no matter what they try, including "with different power cords". doesn't seem like they've tried anything else (including looking at the batteries), though
but unlike the latest generation of Smart-UPS UPSes, these ones don't have a separate SMPS for maintaining battery charge after the battery is charged up — they just use the inverter in reverse, all the time
my hunch is that the battery is completely dead, so it's got no power to even switch on the AC relays or whatever it is that it needs. pulled out the batteries, and whaddya know — they're practically bursting at the seams, and probably don't have much charge at all!
i've got a good feeling about this, so I guess all that remains is buying replacement batteries (off Taobao?) and a NMC2 (AP9630, probably). then, i'll have a(nother) perfectly serviceable network-managed UPS for $50 or so
seller says it doesn't power up no matter what they try, including "with different power cords". doesn't seem like they've tried anything else (including looking at the batteries), though
but unlike the latest generation of Smart-UPS UPSes, these ones don't have a separate SMPS for maintaining battery charge after the battery is charged up — they just use the inverter in reverse, all the time
my hunch is that the battery is completely dead, so it's got no power to even switch on the AC relays or whatever it is that it needs. pulled out the batteries, and whaddya know — they're practically bursting at the seams, and probably don't have much charge at all!
i've got a good feeling about this, so I guess all that remains is buying replacement batteries (off Taobao?) and a NMC2 (AP9630, probably). then, i'll have a(nother) perfectly serviceable network-managed UPS for $50 or so
