Using the rechargeable camera battery in your camera is the best way to get the best price. This battery can be used repeatedly; some of the best types can be used hundreds of times. The biggest difference in quality is how long the battery lasts before each charge and how much charge you can take out before it stops working.
There are three main types of rechargeable batteries on the market today. Below is a small summary of each type. You can also look for 18650 li ion battery online.
These are some of the newest types of batteries on the market and are quickly becoming the most popular types for photographers. They have a high power to weight ratio, so a lot of energy can be stored in a small battery. Provides long dilution time and lots of energy when needed.
Nickel Cadmium (NiCd) Battery
This type of battery was very popular for a long time because it was durable and easy to charge. Compared to other types of batteries on the market, the price is relatively cheaper and cheaper than other types of batteries.
Rechargeable nickel metal hydride (NiMH) battery
These batteries are the next step compared to NiCd batteries. They are cheaper to manufacture, less toxic, and can accommodate two to three times the charge of a NiCd battery. The one downside is that batteries tend to run out unless used much faster than NiCd batteries, although this may have improved with advances in technology.