Bachup Battery Recommendation?

[Genetics]

I'm looking for a good recommendation for a 24 volt battery (gel or SEL I think will work). The plan is to wire it to the Tunze in my tank. I would like something that would run for 24hrs if not more. Any recommendations on batteries would be appreciated!

 

[sjm817]

What is the app? Is this for a 6101 Stream with the 6105.500 safety connector?

You can easily find 12V SLA (Sealed Lead Acid) batteries, but 24V may be more difficult. You can get (2) 12V batteries and run them in series for 100% pump speed. It will run off a 12V battery @ 50% speed. I run a 12V 35Ah battery which should last for 24 hr or longer.

http://www.batterymart.com/p-12v-35ah-sealed-lead-acid-battery-group-u1.html

 

[Randy Holmes-Farley]

You can get huge industrial batteries in the Sears car area. I use them for my DIY battery backup. They are 12 v, but if you got 2, you can wire them up in series to get 24 v. It does become more dangerous to have 24 v on a high amp battery, however.

 

[Genetics]

Looking in and around columbus I've noticed I'm only going to find 12 volt. So it looks like I will have to run the voltage in series.

sjm817 - This is for my wavebox. I will be hooking up the 6105.500 safety connector and attaching it to 24v (once I figure out the best connectors). I talked to Tunze and they said I should still get a wave if the power kicks off at 12volts but small. I'm looking at 24 volts for the same wave currently in my tank. I figured running a wavebox will get more even distribution of flow than attaching it to 6101s.

Randy - I'll check the sears car are for batteries but the link sjm817 has given might be cheaper. BTW whatever happen to that chemical you mentioned that caused corals to grow 2x faster?

 

[Randy Holmes-Farley]

The battery I use is bigger than a car battery, much more capacity, and not much more money. Look through their catalog list if you stop in there.

BTW whatever happen to that chemical you mentioned that caused corals to grow 2x faster?


Still thinking how to implement it and what drawbacks there might be. I think it will work for at least some corals, but has potential issues. I discuss it here a tiny bit:


http://www.reefcentral.com/forums/showthread.php?s=&postid=11684522#post11684522

 

[sjm817]

I look at a battery backup as an emergency life support. As long as it is moving some water, it is sufficient. Even a 6101 @ 12v (50% speed), will be enough to do that.

 

[lvreefer]

Apc.com is a good place to get backup power advice. They have a wizard to guide you through the process. Very useful for full system back power and monitoring.

 

[Genetics]

The safety adapter comes with a two prong plastic end. Is there a part to buy that fits this end and will allow you to split to a battery?

 

[saveafish]

Well for a 24V battery I would look at big truck shops like kenworth, freightliner, enyone that repaires 18wheelers.. or go to sears and get a deep cycle marine battery they are about 15-1800 CCA's and put a inverter on it and you will have 120V running back on the pump. the inverter will give you clean electricity. Unlike a genarater

 

[sjm817]

The Tunze works off DC directly. No inverter is needed. I cut the and off that connects to the battery and crimped on new ones.

 

[Genetics]

How hard would it be to put two 12v in a series? I'm thinking like this:

Now for to charge the batteries I need to purchase something that will float charge the battery? Or will this Tunze Component do it for me?

 

[sjm817]

That is the correct arrangement for the batteries @ 24v. You would need a 24V float charger.

 

[Genetics]

Thanks. I think I have everything planned now except for the connectors to the battery. How are you guys keeping the ends secured on the battery?

 

[Randy Holmes-Farley]

I use stainless steel hose clamps screwed onto the round metal posts, with the wire held between the clamp and the post.

 

[ludiNano]

Are there some more threads for DIY battery backups.

 

[Genetics]

<a href=showthread.php?s=&postid=12037211#post12037211 target=_blank>Originally posted</a> by Randy Holmes-Farley
I use stainless steel hose clamps screwed onto the round metal posts, with the wire held between the clamp and the post.

Thanks I'll have to look into this and the industrial sized batteries.

 

[ludiNano]

Sorry its been awhile i did go to Apc web site and the did have a calculator showing your watts/Hrs. And running my koralis 2 Power heads it made a huge difference.

I from what i remember i could get 7 hours for under $100