12V Backup Battery Brand

[BigTexasBaller]

Hey Y'all-

I Was Wondering What Brand AGM Or Gel Battery Y'all Would Recommend?

I Am Looking For At Least A 55AH Battery Up To 225AH Battery.

I Am Planning On Setting Up A Battery Backup System Similar To Mr. John B. Fisher's Design.

Thanks,
Brandon

[torontoCPAPguy]

Truth is that many batteries are made by the very same people in the very same plant. Just buy from a reputable supplier (Sears?) and make sure it is sealed, gel cel and perhaps deep discharge as well. You will have gold.

Personally, I just find a car with an unlatched hood and use that tool that cuts chains and debulls bulls.

[reitzell]

I’m a big AGM fan.

- don’t spill
- don’t vent if charged within specs.
- The one I have can be both high cranking volts and deep cycle. (only really use it for deep cycle but if car battery had problem, I’d steal it for a day.)
- Very low internal resistance so charging is very efficient…. 98 percent.
- And because of this low R value it can be stored a month(s) with low loss of power.
- It sustains vibration well. (I’m not sure it is relevant but true and I do live in California.)
- It is supposed to live twice as long as normal deep cycle batteries. ( 8 years???) Of course mileage may vary based on the way it is used and stored.

On the down side…
It does cost more and gets it butt kicked if you look at it from a cost perspective BUT none of the parts I put into my system used cost as a primary factor. So…

[LoQ]

Personally, I just find a car with an unlatched hood and use that tool that cuts chains and debulls bulls.

That sounds suspiciously like stealing to me. If you forgot to lock your car door, would you like it if someone else took something that was inside, oh, say, your brand new xPAP machine? If not, then don't treat other people that way.

[BigTexasBaller]

Truth is that many batteries are made by the very same people in the very same plant. Just buy from a reputable supplier (Sears?) and make sure it is sealed, gel cel and perhaps deep discharge as well. You will have gold.

Personally, I just find a car with an unlatched hood and use that tool that cuts chains and debulls bulls.

Yeah, You're Right!! For Example, Johnson Controls Makes ACDelco, Duralast, Optima, Diehard, Interstate, Motorcraft, Everstart And A Few Other Brands.

[topdragster]

Personally, I just find a car with an unlatched hood and use that tool that cuts chains and debulls bulls.

That sounds suspiciously like stealing to me. If you forgot to lock your car door, would you like it if someone else took something that was inside, oh, say, your brand new xPAP machine? If not, then don't treat other people that way.

Whoa, puller back a gear there big rig!!!! If you have read any of torontoCPAPguy's other posts you would surely know he was kidding.

[reitzell]

oh, agm isn't a brand it's a type. The brand I use is Optima.

[LoQ]

If you have read any of torontoCPAPguy's other posts you would surely know he was kidding.

Ah, well, that's good.

[BigTexasBaller]

I’m a big AGM fan.

- don’t spill
- don’t vent if charged within specs.
- The one I have can be both high cranking volts and deep cycle. (only really use it for deep cycle but if car battery had problem, I’d steal it for a day.)
- Very low internal resistance so charging is very efficient…. 98 percent.
- And because of this low R value it can be stored a month(s) with low loss of power.
- It sustains vibration well. (I’m not sure it is relevant but true and I do live in California.)
- It is supposed to live twice as long as normal deep cycle batteries. ( 8 years???) Of course mileage may vary based on the way it is used and stored.

On the down side…
It does cost more and gets it butt kicked if you look at it from a cost perspective BUT none of the parts I put into my system used cost as a primary factor. So…

I Saw On Another Thread That You Use A Optima Bluetop Battery.

What Experience Have You Had With That Brand?

What Model Or Amp-Hour Battery Do You Use?

What Charger And/Or Charging Method Do You Use?

Thanks,
Brandon

[torontoCPAPguy]

Personally, I just find a car with an unlatched hood and use that tool that cuts chains and debulls bulls.

That sounds suspiciously like stealing to me. If you forgot to lock your car door, would you like it if someone else took something that was inside, oh, say, your brand new xPAP machine? If not, then don't treat other people that way.

I'm like totally ignoring your comments now and forevermore until you give me your license plate number and make of vehicle, please.

And for the record. Just in case anyone is interested.
1. I never leave my car door unlocked.
2. I have a safe in the back of my SUV that I keep my XPAP and handguns in when not wearing it/them.
3. I was just kidding about the chains. We live in the country.
4. I do NOT steal; however, I do tend to borrow stuff and then have trouble locating the owner to return it. Not my fault. They should have their initials on the stuff like when we were at camp... so we did't lose our underwear in the laundry, right?

[Hose_Head]

Personally, I just find a car with an unlatched hood and use that tool that cuts chains and debulls bulls.

That sounds suspiciously like stealing to me. If you forgot to lock your car door, would you like it if someone else took something that was inside, oh, say, your brand new xPAP machine? If not, then don't treat other people that way.

I'm like totally ignoring your comments now and forevermore until you give me your license plate number and make of vehicle, please.

And for the record. Just in case anyone is interested.
1. I never leave my car door unlocked.
2. I have a safe in the back of my SUV that I keep my XPAP and handguns in when not wearing it/them.
3. I was just kidding about the chains. We live in the country.
4. I do NOT steal; however, I do tend to borrow stuff and then have trouble locating the owner to return it. Not my fault. They should have their initials on the stuff like when we were at camp... so we did't lose our underwear in the laundry, right?

Handguns in Toronto? Now THAT'S illegal!

And no, I don't want to participate in yet another flamewar about gun laws. I was just stating a fact.

[jazzer4]

Hi BTB
I live 90 miles north of Houston and I'm preparing for a big H!
I just purchased a propane Generator from Home Depot.com
It uses the same tank as your outdoor grill, but, I have propane in a tank outfront underground, so I'm going to hook up to that. As I understand that way I'll be able to run a room a/c, my cpap, freezer(during the day) and a few other plug ins.
It costs $400.00, but worth just the food I would lose if the power went out for a week like last time.
I hope we don't need these things, but better to be safe than sorry.

[reitzell]

I’m a big AGM fan.

- don’t spill
- don’t vent if charged within specs.
- The one I have can be both high cranking volts and deep cycle. (only really use it for deep cycle but if car battery had problem, I’d steal it for a day.)
- Very low internal resistance so charging is very efficient…. 98 percent.
- And because of this low R value it can be stored a month(s) with low loss of power.
- It sustains vibration well. (I’m not sure it is relevant but true and I do live in California.)
- It is supposed to live twice as long as normal deep cycle batteries. ( 8 years???) Of course mileage may vary based on the way it is used and stored.

On the down side…
It does cost more and gets it butt kicked if you look at it from a cost perspective BUT none of the parts I put into my system used cost as a primary factor. So…

I Saw On Another Thread That You Use A Optima Bluetop Battery.

What Experience Have You Had With That Brand?
None really...just had this application and read about the options.

What Model Or Amp-Hour Battery Do You Use?

Optima D33m. 55ah


What Charger And/Or Charging Method Do You Use?
CTEK 7002... So, if I am just "charging" the battery this charger has a optima setting and charges at a higher voltage then standard deep cycle voltage. If I am running the inverter then there is a supply voltage setting at 13.8 volts... and this is a float/maintain mode. The battery will charge anything over 13.2 volts so it keeps the battery charged. I turn it off in the morning.

The CTEK comes with a "friendly" connector and the standard battery clamp you use when you use jumper cables and on that is an eyelett that connects to the terminals on an Optima and then you have fly screws to connect to the terminal of the optima battery. (way more secure then battery clamps.) In either case of the connection to the battery the end that hangs out of the battery box is a sort of a universal CTEK connetor (friendly connector) and you can plug your charger or whatever in without having to open you battery box. You can get an optional cigarette socket and plug into this "friendly" connector. (really a bunch of options and connectors available.)

I do this...like in the wiki and I connect to house power like:
viewtopic/t54047/APC-redundant-switch.html



Thanks,
Brandon

[bearded_two]

For CPAP backup, I use an Optima yellow top (deep cycle) battery; Odyssey is another good brand. I use a red top Optima in my car.

Optima has three types of batteries indicated by the top color: For CPAP use, you want will want the yellow top, which indicates deep cycle. Red top is a starting battery that is used in the place of a regular car battery. Blue top indicates a marine battery, which is a compromise between a start battery and deep cycle battery.

There are people who report using marine batteries, such as a blue top Optima, as a CPAP backup; it is much better to use a deep cycle battery because they will last longer.

[reitzell]

I like the blue one because of the thumb screw post... yellow and blue are the same internally per Optima with just different post.



from support"

"...snip....
Considering same part numbers, example the YellowTop D34 and the BlueTop D34M, the only difference between the batteries are the post configurations. The YellowTop line will only have the automotive posts while the BlueTop line has both threaded and automotive posts for marine applications. Internally they are identical. ..."

Robert