LIGHT battery for air travel

[user from Singapore]

Disclaimer: Before you tell me, I have done some research on the forum but could not find the info I need. I saw that there is great info on how to make your own battery while camping, but I need something else.

I am looking for a small and light battery that can be used on board while traveling in an aircraft. I checked with the airline, they said I can take the machine on board (Respironics PR System One REMstar Auto CPAP) and said I need a dry cell battery. That makes sense.

I also did some search online, and found that there are very light models (about 1 kg) but they are rather expensive, $ 250 to 300 plus delivery, that is a bit too much since I may need it maybe 2 to 5 nights per year... I contacted the local DME (just out of curiosity) and they charge 3 times what I found online... They also said they don't have stock because they don't sell. No wonder, if they changed their pricing policy that may help a bit

I have found a very nice guy who deals with all sorts of batteries, he is ready to help at a much lower cost, but he is unsure about the exact specifications.
So if anybody can give me the exact requirements that would be great.

Thanks in advance

[dtsm]

You might want to email him the specs of competitive products or better yet, just buy from here directly: https://www.cpap.com/cpap-battery-power ... attery.php. I've looked at portable batteries in the past and couldn't find anything less than $300. If you're in Singapore, many of the Asian airlines have power, even in the back [unless you're on Air Asia or one of the other budget airlines].

[chunkyfrog]

The cheapest option might be to pay the extra fee for a seat with an outlet; if possible.

[-tim]

You might also want to consider what will happen with the TSA or other passenger finds a "custom" battery.

[user from Singapore]

Thanks for the comments and suggestions