Replacement battery for Cygolite Milion light? I have a Cygolite Milion 200 light purchased in 2010. Its battery is taking a long while to charge these days.

I wrote to Cygolite, and they say they don't have a replacement battery for it.

The Expilion battery looks to have the same form factor.

Does anyone know definitively that the Expilion battery fits, or does not fit, the Milion?
I found the model number for the Milion battery via a search on the Wayback Machine. It's 426-44LN, which is different than the Expilion battery.