So, I had mentioned that I was purchasing a battery for those times that the power goes out and for travel. I know some folks told me that it wasn't a good travel thing as they don't last very long, etc. Well, I want to tell everyone that there have apparently been some breakthroughs in batteries!
What: This is a generic Battery back up for all xPAP type machines, and I suppose you could use it for other things too!
Where: I purchased through Supplier #2
. It is the only one he has listed on his website as of the writing of this review.
Who: The packaging has the name Targus on it, which is a name I am familiar with from the computer industry so I suspect this little jewel was re-purposed for xPAP use.
The battery is about 4 pounds. very light and fits in the palm of my hand. It is seriously about 2x3x4. It has a coiled cord coming out of the pack that ends in a "cigarette lighter" recepticle, like what is in your car. It also comes with a charger which ends in a "cigarette" lighter type thing. The first thing you have to do is charge it and the instructions said something about it could take up to 8 hours or 6 hours or something if it was completely depleted, so I just left it to charge overnight.
When you purchase this you also have to purchase the DC cord that is machine specific. The one for my machine (Respironics) was about $30, but the bad news is that the one for the ResMed folks is about $100.
On my machine the DC cord plugs into the same port as the AC cord we usually use every night, so it is very user friendly. I do not know about ResMed or other machines.
So last night I wanted to test this baby out and see what it would do. When you look at battery units for our machines they have all sorts of charts based on your pressure and machine and such, but all of these are with no humidifier. Well, I bought an auto machine so I am not going to step back in time to a fixed pressure and I have a humidifier for a reason also and I am not going to do without it. So I figured it would be the acid test for me! I decided to go to bed a bit early and watch some television (I know about sleep hygiene, but this was in the interest of a complete review!) so I went to bed early last night as I was tired anyway from working in the yard. The plan was to watch an hour and a half of television, turn it off and go to sleep. Well I woke up after an hour and a half, turned it off and went back to sleep! When I awoke this morning the machine was still going strong! Below is the data:
Machine: PR DS550 Auto
Pressure: Min-12.5 Med-12.8 95%-13.5 Max 15.1
Start 18:54 End 04:45
Yes, the battery lasted over 9 hours and 45 minutes with the humidifier on and the machine on auto. I also had several events last night that the machine needed to respond to so it wasn't like it just kept the same pressure the whole time.
I was prepared to be awakened in the middle of the night with a dead battery, but I figured if I got 4-5 good hours, I could make this work for emergencies. I was very surprised and just a tad bit happy that it out performed my expectations! While LiON (Lithium ION) batteries will over time die on you, and need to be replaced, this particular pack sure does what it needs to in a very small space. This is also TSA approved so you can take it with you on your flight.