I initially bought my cells off Amazon (gotta love the free shipping) but then realized there was no service after the sale. I gravitated to Illumn (San Jose, CA.) and haven't looked back. Cell prices are much better in most cases, and they are the largest dealer/distributor of KeepPower...
True, you aren't the first. However, I have tested a 16650 cell in the RM2 and it works just fine, no adverse effects at all. Thanks for your insight and reply!
I have a Streamlight TLR-RM2 which takes 2 x CR123 batteries (see link below):
https://www.streamlight.com/products/detail/index/tlr-rm2
I want to switch over to a monolithic battery solution, and the 16650 battery looks to fit the bill. But before I go down this rabbit hole, I was hoping to...