Difference between 26650 lithium batteries and 18650 lithium batteries？

The battery life of the 18650 lithium-ion battery and 26650 lithium-ion battery must be different because the two models are named after size, 18650, that is, straight 18mm and height 65mm. From this point of view, 26650 must have a larger volume ratio than 18650, so there is a larger space-filling material to achieve a larger capacity. At present, the capacity of 18650 is 220026003100mah, while the capacity of 26650 is generally 40004204500mah, The lead-in endurance will be longer.

In terms of the size of the lithium-ion battery, the 18650 lithium-ion battery and the 26650 lithium-ion battery are completely different, but they can be modified each other, but they are also different. The thick barrel is equipped with a thin battery. There is a kind of adapter, which can thicken the 18650 battery and put it into a 26650 flashlight.

● battery volume comparison

The volume of 26650 lithium-ion batteries is larger than that of 18650 lithium-ion batteries. They have the same cell height and different cell diameters. The cell diameter of 26650 lithium-ion battery is 26mm, while that of 18650 lithium-ion battery is 18mm.

● battery capacity comparison

The battery capacity of 26650 with the same battery material is larger than that of 18650. Assuming that the battery capacity of 26650 with the same ternary material is generally about 5200mAh, the capacity of 18650 battery is mostly about 2600mAH.

● comparison of an application environment

18650 lithium-ion batteries are widely used in lighting lamp batteries, industrial supporting lithium-ion battery packs, electric tool batteries, electric bicycle batteries, powerful lithium-ion battery packs, etc., while 26650 lithium-ion batteries are widely used in integrated solar street lamp lithium-ion battery packs, energy storage machine stations, solar energy storage batteries, etc.

Advantages of 18650 lithium-ion battery