The red V1 2k mah IMR 18650 Efest I currently use, slide in and out really tight in the SID. I was looking for a solution that would slip in and out easily.
I have had a SID for 6 months, I've always used Panasonic
CGR18650CHs. These are 2250 mAh, 10 amp continuous discharge, safe chemistry hybrid IMRs, and most certainly a quality battery.
They fit *PERFECT* in the SID. Slides in and out like it was designed for it (That's what she said, HEYOooo!)
