Also what would work better VTC4 2100mAh or my Panasonic NCR18650B 3.7V 3400mAh?
Don't use the Panasonic.
The Panasonic/Orbtronic NCR18650B 3400mAh battery is a hybrid battery whose chemistry is heavily weighted to the ICR end of the scale, making it
NOT a high drain battery with
high internal resistance and with
only a 6.8 amp continuous discharge rate. These batteries are essentially ICR batteries for all practical purposes, and are best suited for low drain applications such as flashlights.
Check out Badiitude's blog below (our resident battery/safety expert) for a list of other safe chemistry batteries:
Battery Basics for Mods
- choose the safest and right battery for your applications here. Includes a list of name brand, high-drain, safe-chemistry batteries with mAh & amp ratings in 18350, 18490/18500, and 18650 sizes.