why not buy replacement Pentax lithium-ion battery D-L163?"
Depending on the type of Olympus camera you own, the battery packs look different. the Olympus LI-12B rechargeable Lithium-Ion Battery for C Series Digital cameras is a small silver-colored pack that looks like a square with 4 battery windows at the top. http://www.amazon.com/Olympus-Rechargeable-Lithium-Ion-Battery-Digital/dp/B00007I409
Lithium-ion (Li-ion) battery
It has has Lithium ion battery.
Yes they do, and most of the posted reviews say that they work as well. http://www.amazon.com/Olympus-Rechargeable-Lithium-Ion-Battery-Digital/dp/B00007I409
The Norelco 8250 electric razor has a Lithium-Ion battery.
LI ION stands for a lithium-ion battery. Lithium-ion batteries are a rechargeable. These batteries are the most popular type of rechargeable battery.
The battery for the Hewlett Packard laptop are lenmar lithium ion batteries.
Yes
Rechargeable Lithium Ion Battery
Lithium batteries are primary cells. That is, they're used up and thrown away. They're not rechargeable. Lithium-ion batteries are rechargeable. Which is better depends on your need or application. For example, if you had to buy and replace cell phone batteries all the time it would be expensive and a pain.
Lithium Ion Battery