These currently are regarded as the best battery available. At $7 each these are cheaper than a lot of inferior batteries out there. These feature a 30A output which is safe for coils down to .2 ohms. That is sure to please any insane quad coil fan boys out there. These batteries have a nice thick coating that hasn’t peeled on any of my units yet.
Get yours here http://trianglevape.com/sony-us18650vtc4-2100mah-30a/
I’m also waiting for that efest 2 amp battery charger to come back into stock… can’t beat $25 for that.