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Unread 07/13/2007, 01:26 AM   #1
KMP
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Why do we not see this more? Battery back-up.

I've been in this hobby for 1.5 years now. I've read countless threads about tanks crashing when the power went out. I haven't ever seen anyone discuss having a battery back-up on their system.

http://www.buyupsonline.com/products...ck-ups-pro-420

You won't need to power the whole tank - just some powerheads, etc.


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Unread 07/13/2007, 06:45 AM   #2
sjm817
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It does come up quite a bit. There have been several threads about it in this forum just this week. I use a 750W APC UPS to back up one of my Tunze 6100s.


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Unread 07/13/2007, 06:54 AM   #3
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its enough of an issue that EcoTech Marine (with Icecap) have a battery backup solution for their Vortech line of powerheads. When the power goes out, the unit automatically switches to the battery backup, and reduces its strength to 50% or less. The BB can run for aprox. 36 hours.

I have one.


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Unread 07/13/2007, 08:46 AM   #4
miatawnt2b
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a big issue is that for AC powerheads/pumps you can damage the pump by using a cheap UPS. Most of the cheap versions do not output true sine wave A/C which is what you need to run a standard pump without hurting it. Some of the Tunze pumps use a transformer and rectifier to convert AC-DC and the actual pump runs off of DC. A cheapo UPS on this style of pump is fine as the rectifier could care less if you input a true sine wave.

-J


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Unread 07/13/2007, 09:12 AM   #5
rakeck
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Quote:
Originally posted by miatawnt2b
a big issue is that for AC powerheads/pumps you can damage the pump by using a cheap UPS. Most of the cheap versions do not output true sine wave A/C which is what you need to run a standard pump without hurting it. Some of the Tunze pumps use a transformer and rectifier to convert AC-DC and the actual pump runs off of DC. A cheapo UPS on this style of pump is fine as the rectifier could care less if you input a true sine wave.

-J
VERY TRUE miatawnt2b. Take a typical APC purchased at Wal-mart or Office Depot, then try and run the typical powerhead or eclipse pump, etc (especially the smaller pumps) on the back-up while on battery power and listen to the pump chatter and clatter trying to run .... What someone needs to do is design an inexpensive pump that will run on non-pure sinewave power (on battery), or we need to look for ups's that output pure sinewave while on battery (expensive)

But as far as I know, most of the larger "main-pumps" will run ok on non pure sinewave power provided it provides enough amp-hours to do any real good for the higher amp draw pumps.



Last edited by rakeck; 07/13/2007 at 09:34 AM.
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Unread 07/13/2007, 09:24 AM   #6
jc9394
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Will this work with Tunze 6025?

http://www.buyupsonline.com/products/smart-ups-1000

Waveform Type: Sine wave


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Unread 07/13/2007, 09:25 AM   #7
Bebo77
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i have my wavebox on a UPS...


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Unread 07/13/2007, 09:27 AM   #8
yeldarbj
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I tested both a Seio 620 and Maxijet 900 on a modified wave backup unit. Both ran fine on my Xantrex Powersource 400. In fact, I was able to run a single MJ-900 for just over 36 hours. I only paid $120 for the UPS so if I end up ruining an inexpensive powerhead, it's not that big of a deal, if it saves the investment in my tank. At some point, I do plan on getting a Tunze pump that converts AC to DC and won't have this potential problem.

On the other hand, it would have cost well over $200 for a true sine wave UPS.


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Unread 07/13/2007, 09:36 AM   #9
miatawnt2b
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Yep, the cheapest tripplite TSW UPS is the "Smart Online" series starting at about $400 for a 1000VA 800W unit.
-J


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Unread 07/13/2007, 09:57 AM   #10
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good to see i had my head in the sand. when i was enlightened yesterday i couldn't believe i've never read about this...obviously i was just looking in the wrong places.

which makes this a good thread. so there are other things to be considered "sine wave". perhaps for my home tank when i get that set up but for now i was looking at the APC unit i posted in the original thread to run a minijet 606 on an 8 gallon nano.

so my question for the experts: what would be the affect of running the battery back up i posted on a minijet 606? if it's just a matter of it may "damage" the pump, that's ok. i'd rather replace a $12 pump than loose tank corals/critters.

__________________________________


Battery back up specs:

APC Back-UPS Pro 420

- Automatic Voltage Regulation Technology (AVR) corrects under voltages, without draining the battery to handle even the deepest brownouts.
- Internet Ready – 2-line phone/fax/modem/DSL or network dataline surge suppression
- Three year comprehensive warranty! – On-Line, On-Battery, Overload, Replace Battery
- Audible alarms alert you of changing power and UPS conditions
- Site Wiring Fault indicator automatically detects potentially dangerous wiring problems with the wall circuit
- Intelligent battery management maximizes battery performance, life and reliability
- Self diagnostics automatically tests all components every 14 days


Output Power Capacity: 264 Watts / 420 VA
Max Configurable Power: 264 Watts / 420 VA
Nominal Output Voltage: 120V
Output Connections: (4) NEMA 5-15R

Nominal Input Voltage: 120V
Input Frequency: 50/60 Hz +/- 3 Hz (auto sensing)
Input Connections: NEMA 5-15P


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Unread 07/13/2007, 10:38 AM   #11
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My guess is that it would work fine. I think you will just have to try it and see. I really don't see the need to spend the money on a true sine wave UPS to run a $12 pump.

Just remember that the computer UPS's are built to carry a high load for a very short time (just to save and shutdown) where as we would prefer to run a lower load for an extended period - that's what led me to Xantrex. It's not designed for computers necessarily. Check their website for specs.


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Unread 07/13/2007, 10:44 AM   #12
jeffbrig
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I have a 1400VA APC Smart-UPS on my Tunze 6100s. It's good for several hours of power outage, and it has been used a couple of times. I think I paid about $140 for it.


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Unread 07/13/2007, 10:59 AM   #13
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Just curious, would battery operated air pumps do anything? Or is it best to run at least one powerhead?


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Unread 07/13/2007, 01:02 PM   #14
daven
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I was told the following. For short outages all you need is one or more battery operated airpumps. For longer you want to get more water movement.

An option is to use an an inverter that converts dc to ac. You can get ones that produce pure sine wave output. Then you could use your car battery and if it runs for a while use your car to charge the battery.

Another option is a deep cycle marine battery hooked to the inverter. These batteries will run longer than a car battery before dischanging. Keep the inverter on a trickle charger. Again, if it takes a while you can charge your deep cycle battery from the car.

The trick is to compute the power you need and get the right size inverter.


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Unread 07/13/2007, 02:05 PM   #15
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I keep a deep cycle battery and charger and a minnow aerator I got at some outoor sporting goods store. This is better than nothing for larger systems after an hour or 2 of outage, for smaller systems, the readily available d-size battery aerators can mean the difference between a crash or not, for extended outages.


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Unread 07/13/2007, 03:50 PM   #16
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Quote:
An option is to use an an inverter that converts dc to ac. You can get ones that produce pure sine wave output. Then you could use your car battery and if it runs for a while use your car to charge the battery.
I did that when I was tank sitting my buddy's tank and his power went out. Had heaters hooked up to it though and the end result was 2 fried heaters.


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Unread 07/13/2007, 04:00 PM   #17
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Heaters draw way to many amps to work with a battery backup. Air pumps will work the longest, but a small powerhead pointed at the surface will work better.


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Unread 07/13/2007, 07:06 PM   #18
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Opti-UPS 1500 TSW here...


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Unread 07/13/2007, 08:55 PM   #19
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Could be patient and check ebay for local listings or craigslist for a generator. I bought a 4500 watt generator locally on ebay for $160, plus it will run my house furnace and tv


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Unread 07/14/2007, 07:09 AM   #20
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Deep cycle marine batteries are IMO the best thing next to a generator. They will run for days. You do need a charger, and an inverter.


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Unread 07/14/2007, 07:54 AM   #21
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I made the mistake of thinking a small UPS from the office store would power my Koralia during a power outage. After purchasing the UPS I tested it and it worked, or I thought it did. The first time the power went out I realized it doesn't work. Mine is made by APC so I wrote to them. Here is part of what they said:

"Technically, it is possible to use a UPS for a fish tank. A fish tank would require a Smart-UPS 750 or higher unit because these units output a pure sine wave on battery. Anything smaller than a Smart-UPS 750 outputs a stepped approximated wave when on battery. The Smart-UPS SC model line also outputs a stepped approximated wave when on battery. The fish tank is a linear load and would not be able to accept a stepped approximated wave. We make Smart-UPS XL units that can take additional battery packs to increase the runtime. "

"Please also be aware that with an aquarium you are supposed to use a device with a GFI (Ground Fault Interrupter) and unfortunately none of our UPS units or surge protectors offer a GFI. A UPS may interfere with a GFI as UPS units do
exhibit some leakage current which can trip a GFI. Please also be aware that if a UPS is plugged into a GFI circuit, the UPS would go into battery backup mode as it is designed to do when power is removed."

I have a couple power packs that I bought online. The kind you can jump start a car with. They have a gel cell battery with an inverter to run 110v stuff. They will run a small aquarium pump for days. They only problem is you have to be there when the power goes out to plug your aquarium in. I wanted a UPS to automatically kick in and run one power head for at least a few hours in case I was at work or the power went out when everyone was asleep.


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Unread 07/14/2007, 08:05 AM   #22
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that's good info - thanks. i also have a have the gel cel battery packs but like you, was looking for an automatic start option.


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Unread 07/14/2007, 08:27 AM   #23
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The Xantrex unit gives you the automatic start option, just like a computer UPS, but will run much longer. I don't think it has the gel cel battery but they do make the jump start systems.


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Unread 07/14/2007, 09:08 AM   #24
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<<< tested both a Seio 620 and Maxijet 900 on a modified wave backup unit. Both ran fine on my Xantrex Powersource 400. >>>


That's the same unit I have. I used it the other day to run several koralia pumps that were about 25W in total and the Powersource only ran them for about 3 hrs. before running out of juice, and I had just charged it up to 100% a few weeks prior. I thought it would have run them a lot longer?


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Unread 07/14/2007, 09:28 AM   #25
allengy
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My power pack is made by Xantrex also but it doesn't have the auto start feature. That would be nice. I would have thought that the Powersource 400 could power the Koralia pumps for a long time. I'm suprised it only ran for 3 hours. I plugged a
RIO 1700 into mine to see how long it would run. After 6 hours it was still running. I unplugged it after that.


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