UPS batteries for grid-connected emergency battery backup - Use deep cycle or not?

[Sunking]

Wished I could post pictures or drawings as I have exactly what you need to know. So lets try this. I assume you know how to wire the batteries in series - to+ OK?----------------------------------------------------You want to put the batteries side by side as close as you can get them together. Alternate every battery up/ down. Meaning if the batteries were lined up in front of you the Positive terminal of battery one is up or away from you. Second battery Positive down, 3rd up, and 4th down. What you will now notice is the adjacent battery opposite polarities are right next to each other, only requiring very short jumpers of only a few inches. In fact you can even buy lead coated copper term bars to use in place of inter-cell jumpers.

[lkruper]

Wished I could post pictures or drawings as I have exactly what you need to know. So lets try this. I assume you know how to wire the batteries in series - to+ OK?----------------------------------------------------You want to put the batteries side by side as close as you can get them together. Alternate every battery up/ down. Meaning if the batteries were lined up in front of you the Positive terminal of battery one is up or away from you. Second battery Positive down, 3rd up, and 4th down. What you will now notice is the adjacent battery opposite polarities are right next to each other, only requiring very short jumpers of only a few inches. In fact you can even buy lead coated copper term bars to use in place of inter-cell jumpers.

perfect, thank you.

[Sunking]

perfect, thank you.

You are welcome. I take it you understood my mental picture?

[Sunking]

Be sure to size the Inter-Cell jumpers correctly. Based on the batteries you have, the smallest I would go with is #6 and is good to 100 amps which is more than your batteries should ever supply except for those rare infrequent occasions. What I will tell you to do is make sure the Inter-Cell jumpers must be as large or larger than the terminal conductors. Again #6 is likely the largest you will use. If not use larger. You cannot go to large, just too small. But there is a point when over kill gets silly and expensive. You will not need a 1/0.

[lkruper]

You are welcome. I take it you understood my mental picture?

Yes, very clearly.

[lkruper]

Be sure to size the Inter-Cell jumpers correctly. Based on the batteries you have, the smallest I would go with is #6 and is good to 100 amps which is more than your batteries should ever supply except for those rare infrequent occasions. What I will tell you to do is make sure the Inter-Cell jumpers must be as large or larger than the terminal conductors. Again #6 is likely the largest you will use. If not use larger. You cannot go to large, just too small. But there is a point when over kill gets silly and expensive. You will not need a 1/0.

I liked the idea of the bus bars. They would be less resistance than 1/0, correct? Any idea where to purchase something like that?

[Mike90250]

I liked the idea of the bus bars. They would be less resistance than 1/0, correct? Any idea where to purchase something like that?

They can be expensive. Often a premade #6 or #8 jumper will work just as well. My batteries came with the plated bar jumpers, which I did use for most of the connections.

A local battery shop can make up the jumpers with hydraulic crimped terminals for less than $10 per cable (with 2 terminals) Or get the $50 hydraulic crimper off the internet. Avoid the harbor freight crimper, it's dies do not fit the terminals.

[Sunking]

I liked the idea of the bus bars. They would be less resistance than 1/0, correct? Any idea where to purchase something like that?

No more restrictive in terms of mechanics. Seriously quality #6 AWG cable works great. As Mike mentioned you can buy prefabricated cables. I suggest you do that. 6 AWG gets you 100 amps.

[PNjunction]

Speaking of Odyssey's, I took a look at Outback's line of batteries (EnergyCell RE) which appear to be rebadged versions of the Enersys (Odyssey) SBS line of tppl agm's. They are basically taking off in ah capacity where the more consumer targeted Odyssey stops.

Good charging info docs from both companies about essentially the same products. Might be worth a look.

[lkruper]

Speaking of Odyssey's, I took a look at Outback's line of batteries (EnergyCell RE) which appear to be rebadged versions of the Enersys (Odyssey) SBS line of tppl agm's. They are basically taking off in ah capacity where the more consumer targeted Odyssey stops.

Good charging info docs from both companies about essentially the same products. Might be worth a look.

The GH appear to be marketed for my requirement, thanks for the reference.