Just picked up a APC 2200. I have it charging the factory batteries now. We'll see if they hold a charge and then I might add some custom batteries. I priced the factory replacement batteries and they are 200 bucks. This thing is HEAVY, specs show it at 130lbs. About killed me carrying it up the steps here at home. If everything works,, it will go to the basement out of the way running the important stuff. replyKilla200 @ 28th Aug 10:05AM: Re: [OT] Custom battery backup
Ive got one of those myself. Don't get the batteries from APC, trust me its a killer price wise.
Go for something like these, get 2 sets of the quantity 4:
I bought from them last replacement as the extra 2AH per battery seemed like a good idea, while not too much over the standard battery to fry the APC. Atm I'm at 126 days up on the unit, and i get roughly 50 minutes out of a 36% load. replyevgray @ 23rd Sep 07:27PM: Re: [OT] Custom battery backup
Well, my apc is dead. You can charge it all up and when you plug in the serial cable it shuts off. I pulled the batteries and checked them with a volt meter and they all have 26 volts. (two batteries tied together). Every once in awhile it will work like it should till you plug in the serial cable. I have an apc 350 that I thought about using as a custom battery back up with the batteries from the 2200 apc tied into. replyKilla200 @ 24th Sep 01:55AM: Re: [OT] Custom battery backup
are you using a standard serial cable or the apc specific one? If you use a standard it will shut it off when you plug it in, as the cable is a custom job. replyevgray @ 24th Sep 07:07AM: Re: [OT] Custom battery backup
I just used a standard cable. I think that I have another cable, I'll give that a try and post back. thanks replyThane_Bitter @ 24th Sep 12:58PM: Re: [OT] Custom battery backup
APC has a variety of serial cables designs which are not standard (the plugs are, however in a few cases they have incorporated some electronics into the cable, switched wires around etc.). Use the exact model number of your UPS on the APC website to get the correct part number for the cable. Once you know what cable you need you can either buy one, or make one if you have a few parts. I made one for a Back-UPS 600, it was a few years ago but the cable required a transistor and a few other components to work.
edit - attached PINOUT for APC 940-0020B (simple signalling cable).
APC 940-0020···nout.txt 3,866 bytes
[OT] Custom battery backup Page 2