Unprotected. Sold individually. These are a very high capacity & high current capable cell! Cannot be used in series (flat positive connection).
These are a larger diameter than most 26650 cells! PLEASE CHECK MAXIMUM BATTERY DIAMETER OF YOUR DEVICE BEFORE PURCHASING!
Promotional offer: Buy (2) Shockli 26650 batteries, and receive a free 2 x 26650 carrying case!
Read HKJ's review of the cell here.
Manufacturer Cell Specifications:
These cells, like all lithium and IMR cells, should not be discharged below 2.5 volts.