BiPAP ASV - Backup Power Question

[timbalionguy]

The 24 volt battery is a good idea, especially if you have to use an inverter. the higher the input voltage to an inverter (that is designed for the higher input voltage!), the better the system will work. Even if you have to use a DC-DC converter to get a regulated 24 volts, 24 volts in will make it work more efficiently. Keep in mind though, from a watts-per-pound perspective, a 24 volt battery will weigh as much as a comparable 12 volt battery (of the same chemistry) capable of supplying the same number of watt-hours of power.

FYI and FWIW, the webpage says that this PPS130 battery weighs just 2.4 lbs. (My C-222 12V battery weighs about 4.5 lbs.)

Is the C222 a lead acid type? The PPS130 is a LiIon. Big weight difference between these chemistries.

[JohnBFisher]

... Is the C222 a lead acid type? ...

Nope, it's Lithium Ion as well:

http://www.batterygeek.net/v/vspfiles/C ... _Packs.asp

BG-C222 CPAP BATTERY

• Model: BG-C222 / Patents Pending
• Description: Universal CPAP, BiPAP and VPAP Battery Pack
• CPAP Battery Chemistry: High capacity, premium grade Lithium-ion cells
• CPAP Battery Case: Aluminum alloy scratch resistant shell
• CPAP Battery Protection: Built in circuitry protection against thermal run-away (overheating).
• CPAP Battery Capacity: 222Wh
• CPAP Battery Output Voltage: 12V

... The PPS130 is a LiIon.
Here's the PPS130 information:

http://www.batterygeek.net/130Wh-Portab ... rygeek.htm

It is also Lithium Ion:

Specifications:

• Capacity: 130Wh
• Output Voltage Main: 3V, 5V, 6V, 9V, 12V, 16V, 19V, 21V, 24V, or 28V
• Output Voltage USB port: 5V
• Output Current (Max): 6A
• Charging Time: 6-6.5 Hours
• Dimensions: 8.93x4.84x.87(in)
• Weight: 2.4 lb.

... Big weight difference between these chemistries.

Not sure what the difference is between the two. I will need to dive deeper. But at the moment I am too tired from a long week to concentrate.

[timbalionguy]

Now knowing the capacity of the two batteries, the 222 has almost twice the capacity. That is why it is heavier.

I wonder if the top voltage range on the PPS130 could be modified to 30 volts. Then the folks with the VPAP Adapt SV could have a practical battery.

[Kiralynx]

But here's the (potential) great news:

Sean (the guy I've spoken with whenever I've called them) said that they're now manufacturing xpap batteries for ResMed VPAP machines in Europe, and those machines are 24V (like the ASV). So he's going to do a little research on whether that battery will also operate our ASV machines here and said he'll do his best to get back to me on that today. He'll see if they can "special order" one of those batteries for me (with the right power plug for the U.S.). When I inquired about the price difference between the battery I have and the one he's talking about, he said I could exchange my battery for the new one, with no additional cost. (I'm loving this company for their customer service.)

If he finds that this "European" battery will do the trick for us here, I'll ask about the price so I can tell you what it would cost to purchase one outright. I'll post an update after I hear back from him.

Hey, BB, did you ever find anything out about these batteries? Hurricane season is getting closer....

[BleepingBeauty]

If he finds that this "European" battery will do the trick for us here, I'll ask about the price so I can tell you what it would cost to purchase one outright. I'll post an update after I hear back from him.

Hey, BB, did you ever find anything out about these batteries? Hurricane season is getting closer....

The one they've recommended for the ASV machines is the SPPS200 (http://www.batterygeek.net/ProductDetai ... ATTERYGEEK). When I spoke with them again recently, their best estimate is that this battery would give me double the run time of my current battery (with no inverter needed), and they went so far as to guarantee that this one would give me at least eight hours from the ASV with my pressure range of 10-20cms.

I am considering it, because I'm finally getting very effective therapy with the ASV and am not happy about the thought of having to use my APAP ever again. Now that I know what good, restorative sleep feels like, I don't want to go backwards! But the battery costs more than I paid for the ASV! I'd have to sell my current battery to justify buying another one, so I'm thinking about it. I should just make do with my current battery and the APAP, but...

Bottom line: Don't wait for me to make a decision about this before you set yourself up with backup power. Summer is coming...

[Kiralynx]

Hey, BB, did you ever find anything out about these batteries? Hurricane season is getting closer....

The one they've recommended for the ASV machines is the SPPS200 (http://www.batterygeek.net/ProductDetai ... ATTERYGEEK). When I spoke with them again recently, their best estimate is that this battery would give me double the run time of my current battery (with no inverter needed), and they went so far as to guarantee that this one would give me at least eight hours from the ASV with my pressure range of 10-20cms.

I am considering it, because I'm finally getting very effective therapy with the ASV and am not happy about the thought of having to use my APAP ever again. Now that I know what good, restorative sleep feels like, I don't want to go backwards! But the battery costs more than I paid for the ASV! I'd have to sell my current battery to justify buying another one, so I'm thinking about it. I should just make do with my current battery and the APAP, but...

Bottom line: Don't wait for me to make a decision about this before you set yourself up with backup power. Summer is coming...

I can't say I blame you for not wanting to go backwards, that's for sure! (You ever going to update that thread of yours with the ASV results?)

I think I'm going to have to get the DC connector first, then the battery. I really don't want to be without emergency power in hurricane season. Be nice if I could get at least two nights off that thing.

Wonder if it can be recharged with a solar panel, and what size I'd need?

[BleepingBeauty]

I can't say I blame you for not wanting to go backwards, that's for sure! (You ever going to update that thread of yours with the ASV results?)

I haven't posted any recent graphs yet because they look good, and I don't really have any questions about the data. But I could post a few, just so others can see how much better my current treatment is.

Can't help wishing my ex-doc's office was still following my posts here, so they'd know how wrong they were about my treatment needs. (Not that they'd actually listen to their current patients as a result; just wishful thinking on my part. )

I think I'm going to have to get the DC connector first, then the battery. I really don't want to be without emergency power in hurricane season. Be nice if I could get at least two nights off that thing.

Wonder if it can be recharged with a solar panel, and what size I'd need?

I can't help you on the solar panel question, but do keep the rest of us posted on what you decide to try and how well it works for you.

[tonycog]

Wonder if it can be recharged with a solar panel, and what size I'd need?

I emailed a company asking for recommendations and this is what they told me (I use an Auto SV also):

For a charger, I would recommend this one with the IQ4 http://store.solar-electric.com/ioen12vo15am.html

For the battery I would recommend something like this http://store.solar-electric.com/pvx-1295.html - a slight bit undersized, but the next standard size up is overkill.

They can also recommend a solar charger. I had their specific recommendation in a different email, but I can't find that one right now. You could email them to get one.

Best wishes,
Tony

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