The only beef I have with this battery is that it does not fit all 1MG cartridges. Other than that it is a really nice product. Battery lasts for a while.
Love my key fob!!! Works like a champ
I bought this device specifically for the 2.5v setting on it, not many battery styles seem to run lower voltages, and to me that's where all the flavor and wax saving comes to play specially with ccell. The issue I have with the design is the half-g/3/4 g carts are the only sizes that fit and I mainly rock my 1g carts
So far all good
SWITCH Key Fob 510 Battery