Price is for one battery

Genuine Joyetech 510/510-T batteries.

These batteries are compatible with both the 510 and 510-T Electronic Cigarette Systems.

Manual Batteries are rated at a slightly lower capacity due to the space taken up inside the battery casing by the manual switch.  See full battery specs below.

Product Specs:

Standard Manual Batteries rated at 150mah

Length:  66mm

Weight:  9.5grams

Standard Auto Batteries rated at 220mah

Length: 66mm

Weight: 10.5 grams

XL Manual Batteries rated at 280mah

Length:  91mm

Weight:  14.5grams

XL Auto Batteries rated at 340mah

Length:  91mm

Weight:  15.0grams

 ***510 Batteries should only be charged with a proper 510 compatible charger (output rating should be between 150mA - 200mA).  Compatible chargers include: 510 A/C Transformer Charger, 510 USB Charger and A/C Adapter Bundle, 510/510-T USB Wire Charger, or Joyetech 510 PCC (Portable Charging Case).  Use of other chargers (even if the battery will fit the charger) will void warranty and may cause battery to fail, become defective, or even explode.