The model of the finished battery (referring to the one that has completed the packaging process) is determined by consultation between the customer and the battery manufacturer. Lithium battery cell types are divided into square cells and cylindrical cells. The cell model is determined by size. A square battery cell such as 496587 means the battery cell is 4.9mm thick, 65mm wide and 87mm long. Cylindrical batteries like the classic 18650 have a diameter of 18 mm and a length of 65 mm.
The full list of high power flashlight battery models is as follows:
1. AAA and AA: These two batteries are AA and AA batteries, which are smaller and often smaller. used in low-power devices and flashlights.
2. CR123A: This is a disposable lithium battery, the size is the same as 16340, and the maximum voltage is 3V.
3. 14500, 16340, 18650, 26650: These are common lithium battery models. 14500 is a lithium-ion battery with a diameter of 14mm and a height of 50mm. AA battery, but the voltage is different. The 18650 battery has a diameter of 18 mm and a length of 65 mm, which makes it an economical battery.
4. 21700 and 26800: These two lithium batteries are newer in recent years. They are larger, have high energy density and are suitable for high-power equipment.