Protected, button top. Price includes storage case (one case per pair of batteries)! Batteries are sold individually.
This is LG's new competitor to the Panasonic NCR18650BD. Some tests even show this cell out performing the 18650BD. This cell is an awesome performer at a great price.
You can read HKJ's review here.
The protection circuit features a high-quality Seiko IC (made in Japan) with AO MOSFETs.
Manufacturer Cell Specifications:
These cells, like all lithium and IMR cells, should not be discharged below 2.5 volts.