battery backup design

[lovetoreef]

I am currently debating how to manage battery backup for my office tank ... i may be going with no "power heads" for flow - simply my return pump and a closed loop (in case i go with an anemone only tank - possible) .... in that case, i need a back up system that i can power my return pump

here is the pump i am going to use for return pump ...

http://www.premiumaquatics.com/Merchant ... unze_pumps

I chose this pump b/c it uses only 30 watts, and, i am hoping i can find a battery backup system that will power this for 12-24 hours as the tank will be at my work and i don't want to have to worry about power outages when traveling ... I also plan on incorporating an air pump with an air stone near the return line for additional oxygen, but, if i can keep the water moving through the tank, i would imagine i will be fine until i can get a generator on line.

here is one back up system i am looking at ... thoughts??
http://www.tripplite.com/en/products/mo ... delID=3866

i would couple this with 1-2 deep marine batteries - thoughts?? using a 12V 75AH battery

 

[RokleM]

Edit... nevermind, you already asked Roger in the Tunze section. FYI, I do believe they have a solution, and it will likely be better than a home solution for AC-DC-AC (links are broken, so can't tell 100% what you were referencing).

 

[lovetoreef]

Eric -

thanks i am hopeful Tunze will come up with something for us, but, right now i believe they only have the safety connector for their stream pumps ... not their return pumps.

of course, switching ac-dc-ac is a pain and one of the reasons i am forced to go with the inverter/charger i listed to "condition" the power to run the pump smoothly

 

[discocarp]

A little different than you were thinking, but what about a silent air B11 air pump? This is a battery operated air pump that you plug into the wall. It only kicks in when the power goes off.

 

[lovetoreef]

I plan on incorporating one of those into the plan, but, only as a supplement - i really would like to keep the flow going

 

[discocarp]

Understandable. I just wanted to make sure you were aware of it.

 

[lovetoreef]

no definitely - i appreciate the suggestion for certain!

 

[Percula9]

Both your links don't work. In order to run the system good you will need an inverter that produces a true sine wave form not a modified sine wave form.

 

[RokleM]

Not necessarily true Percula9, as most of Tunze's products are DC and work fine on a modified sine according to Roger. It's typically AC specific items that have issues with not running on a true sine wave.

 

[Percula9]

You are right that you don't need a true sine wave to run the system. I was trying to say that a true sine wave is more desirable as it is more efficient and will give you a longer running time. I recently had a power outage because they were working on the lines. I bought a battery backup with modified sine wave production. It ran my two box filters for an hour then I switched over to a battery operated air pump. The power was off for 5 hours and every thing survived. Do your research before you invest in a system.

 

[Percula9]

You are right that you don't need a true sine wave to run the system. I was trying to say that a true sine wave is more desirable as it is more efficient and will give you a longer running time. I recently had a power outage because they were working on the lines. I bought a battery backup with modified sine wave production. It ran my two box filters for an hour then I switched over to a battery operated air pump. The power was off for 5 hours and every thing survived. Do your research before you invest in a system.