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Model Forum / General / Rockets / November 2006Old UPS
OK, I've got this old 1000 VA UPS that is unreliable as far as powering a server goes, but it still hold a charge. On the back are several standard US configured female outlets. Can I use this as a power supply for launching my rockets? The output is 120V AC, but is that a problem for momentary charges? Yes, I've got to find the annoying alarm that sounds if I turn it on while it is not plugged in to a wall outlet and disable the alarm, but other than that, it seems to hold a charge for quite a while.Looks promising, but I'd hate to zap myself for the sake of science ;-{0} > OK, I've got this old 1000 VA UPS that is unreliable as far as powering a > server goes, but it still hold a charge. On the back are several standard US [quoted text clipped - 7 lines] > that, it seems to hold a charge for quite a while.Looks promising, but I'd > hate to zap myself for the sake of science ;-{0} You'll have to pull the batteries to use for the launcher. I just disassembled two APC 2200RM units and scored 4(out of 16) 12v 7.2ah batteries. Just for grins I tested a AT Firstfire igniter with one of my batteries and got INSTANT ignition. See my previous thread '12v 7l.2ah' for details. Ted Novak TRA#5512 IEAS$75 Ted Would you want to get rid of the APC 2200RM without the batteries? Interested if price and location (shipping) is right. I am located 100 miles north of St. Louis in Quincy, IL Hugh >> OK, I've got this old 1000 VA UPS that is unreliable as far as powering a >> server goes, but it still hold a charge. On the back are several [quoted text clipped - 22 lines] > TRA#5512 > IEAS$75 > OK, I've got this old 1000 VA UPS that is unreliable as far as > powering a server goes, but it still hold a charge. On the back are [quoted text clipped - 7 lines] > other than that, it seems to hold a charge for quite a while.Looks > promising, but I'd hate to zap myself for the sake of science ;-{0} You could just salvage the sealed lead-acid batteries (SLA)from it for an ordinary launcher supply,and use a charger with desulfating capability to maintain them. A major Problem with old UPS units is that the SLAs get sulfated and lose capacity.  SignatureJim Yanik jyanik at kua.net > Can I use this as a power supply for launching my rockets? The output is > 120V AC, but is that a problem for momentary charges? Just to reinforce what others have said, do NOT attempt to use 115-120V for launching. Pull the batteries and use them. I've done exactly that in the past. None of the commercial launch equipment is intended for that voltage; and 115 V is enough to "surprise" you. OTOH, batteries of that type (perhaps a bit smaller than those for a 1000 VA unit) are available for less than $30, more than adequate for the task, and you don't have to wonder of they're suddenly going to disappoint you... How about using an old UPS delivery truck to launch rockets... SignatureTAI FU > OK, I've got this old 1000 VA UPS that is unreliable as far as powering a > server goes, but it still hold a charge. On the back are several standard [quoted text clipped - 9 lines] > that, it seems to hold a charge for quite a while.Looks promising, but I'd > hate to zap myself for the sake of science ;-{0} > How about using an old UPS delivery truck to launch rockets... If UPS will deliver, I will launch. SignatureRocketry Planet — hobby rocketry news, feature articles, news archive, discussion forums, live chat, free auctions, launch calendar and the largest collection of web links anywhere! http://www.rocketryplanet.com > How about using an old UPS delivery truck to launch rockets... What can Brown do for you?.... :) Well you could mail a rocket by UPS express which will go into those brown UPS planes and it will get launched to about 33,000 feet to the other side of the world... I dont know of any motor (available to general hobbyist that is) that can take it that far... SignatureTAI FU > >> How about using an old UPS delivery truck to launch rockets... > > What can Brown do for you?.... :) |
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