70 watt load. I'd like to get 4 hours. 280 watt hours. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Jan 20, 2015 4:25 PM, "Gino Villarini" <[email protected]> wrote:
> The 2200 is 48vdc iirc, for a 289 watt load It will be inefficient... > Better off with a 750xl > > Gino A. Villarini > @gvillarini > > > > On Jan 20, 2015, at 5:17 PM, Ken Hohhof <[email protected]> wrote: > > APC charger is calibrated for AGM, doesn’t flooded require different > voltages? Maybe I’m wrong about that. Certainly take out the internal AGM > batteries, you don’t want batteries of different chemistry in parallel. > I’ve only done it with external AGM, but as far as how you get to the right > voltage (I forget if 2200 VA is still 24V or that’s the point where they > started using 48V), I don’t think it matters if you put 2 x 12V or 4 x 6V > in series to get 24V. I’m not sure you’ll find 24 or 48V batteries, the > choices are usually 2, 6 or 12 volt. Make sure to put a fuse in each > series string of batteries. > > *From:* Josh Luthman <[email protected]> > *Sent:* Tuesday, January 20, 2015 2:50 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Bigger batteries for Smart UPS > > > Charger but also just an APC with the management. So far I've got two > solutions: DC and APC. I'd rather avoid another model or method to monitor. > > Should I just load up on some decent size wet cell and wire them up? > > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > On Jan 20, 2015 3:32 PM, "Ken Hohhof" <[email protected]> wrote: > >> I don’t have specific numbers for you, but I have observed that family >> gets pretty inefficient if you run it way below rated capacity. You seem >> to hit a wall as you drop the load, like 200 watts for 4 hours, 100 watts >> for 4 hours, 50 watts for 4 hours, no watts for 4 hours. Especially if you >> are trying to push the runtime out to days. >> >> Any reason you are using a 2200 VA unit for only 70W? Instead of, say, a >> 700 VA unit? Wanting the faster charger? >> >> >> *From:* Josh Luthman <[email protected]> >> *Sent:* Tuesday, January 20, 2015 2:14 PM >> *To:* [email protected] >> *Subject:* [AFMUG] Bigger batteries for Smart UPS >> >> I'm getting a bigger unit - SmartUPS XL 2200 - and I'm looking at >> batteries. I have an Interstate Batteries and Batteries Plus near me so >> I'd like to go with either of them. >> >> This will be indoors. I'm aiming to get 280 watt hours (70 watts, 4 >> hours) of run time. Is there any idea as to the inefficiency of the whole >> AC/DC/AC/DC process? >> >> What type of battery would be best? Should I look for 12/24/48v >> batteries or does it matter (besides having to connect them in series)? >> >> Josh Luthman >> Office: 937-552-2340 >> Direct: 937-552-2343 >> 1100 Wayne St >> Suite 1337 >> Troy, OH 45373 >> >
