I had the swollen battery problem in my Harmony One and would like to find a remote that is comparable that takes standard batteries.
The battery went bad and I had to remove it (leather coat, safety glasses, leather gloves) with pliers.
Is there a remote that uses online setup like the One? Maybe the 650?
Why not just buy a new battery? That is a known issue with the remotes batteries after a year or two. You can get a replacement off Amazon for around $10. Not sure if the replacements swell eventually or not but mine looks like new after 4 months of use.
I did order a new one from Amazon but would rather not use lipo batteries at all. I fly electric rc and see more problems with these batteries than any other type. lipos have a bad rep for fires even without being damaged or swollen.