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Thanks for the detail. After reading your article I am sure I need a standard out of the box UPS system used for computers. I have a generator for long power outages but I need an emergency system that will work if I am at work / asleep. I am not a DIY reefer.. and have no technical background. Can a fellow reefer point me to an article or recommend a UPS that would meet this criteria...
4 foot 100 gallon reef. I need one power head (Kessil powerhead 7 watts) to run and a heater 500 watts. I would like it to be able to run for 8 hours. In that amount of time I should be able to get my generator up and running. Needs to automatically go on in the event of power outage.
Suggestions requested on UPS systems used that could run the above system for approx 8 hours. I could be talked out of heater..?
Thank you for helping...
I want to run this power head: A voyager 800. https://www.bulkreefsupply.com/sicce-voyager-2-stream-pump-800-gph.html . I could go with out the heater .... b/c this is really just an emergency fail safe. I have a generator - this is for the hours between me being at thee office and me getting home to start the generator.
My other option A battery air pump. The kind you get at walmart for 8 bucks
Glad to help
You're right, it looks like that pump only uses 7W. This UPS costs $105 and appears to have a 9Ah battery inside. If you adjust for DOD (depth of discharge) and inefficiency, your pump would only need about 0.80A to run. So that UPS would run your pump for about 11.25 hours. Of course, more capacity and run time is always better, but it looks that UPS would work.
A battery operated air pump might also do the job. I haven't ever used one, but other reefers have and they apparently do the job of keeping the tank oxygenated. I would just look for one that is automatic. I think Bulk Reef Supply sells one that automatically kicks on when the power's out.
Thank you!!
Can you explain how I shop for UPC's? To run my power head that takes 7 watts for 8 ish hours what power do I need to find in my UPC? Sorry I am not understanding the equations... I am trying to figure out if a UPC w/ 600 watts is enough? Would the one below work? Again this is for emergency until I can start my generator. I just lost a tank b/c I didn't know my power was out : ( as I was on vacation. DEVASTATED is an understatement.
I have a APC UPS SUA1000 with pure sine wave to run two Jebao RW-8 at full power 23 watts each for three hours. Running the Jebaos in low power is only 8 watts each and they will run for eight hours. After that I have a generator.
I purchased my UPS used at ebay. You can find some deals there. It's important to know that some pumps will not work with regular UPS's. You may need what is called "pure sine wave". Is the wave form of electricity. Not sure how to explain the different types of current. Another thing good to know is that there are some inverters that have a charger integrated in the unit and also some will have a transfer switch. They are ideal for this kind of application. https://www.ebay.com/itm/1000W-2000...569498?hash=item3ae2d2ceda:g:nC8AAOSwBLlVBl5r
OK I am understanding way more now! TY TY TY. YES if someone has a UPS that could work in this situation please share model and price. I also have 2 reefs in my house so @ 360 a tad to pricey.
Option B: the $7.00 battery air stone is sounding better and better? I just need to keep to the tank w Oxygen until I find out I am out of power and can get home to remedy.
What about using something like a marine grade deep cycle battery? I believe they are meant to be discharged much lower than the standard lead acid batteries? You might be able to buy a smaller battery and still get the same run time out of it?
Ahh, good info. The only experience I had with deep cycle batteries was when I did mobile detailing as a kid. We had 2 deep cycle batters a d a huge inverter to run a vacuum and electric pressure washer (plus polishers and stuff). The batteries would last the whole day and then start to die off. I figured they were almost fully discharged.
We would just charge them overnight and do it again the next day. They would have to be replaced every year or so but with the minimal use the backup for an aquarium would need, I would think they would have been sufficient (not realizing they weren't sealed).