26650 battery vs 18650 battery, which is better?
26650 battery and 18650 battery 26650 and 18650 cells are a kind of cylindrical lithium batteries, both are mostly used in ternary lithium, lithium iron phosphate power batteries and have a place in the market. Most of 26650 battery are rechargeable LiFePO4 batteries. While most of 18650 battery are rechargeable ternary lithium batteries. Perhaps you can guess from the “name”,26550 cell is 65 mm in length and 26 mm in diameter. As you can tell from below picture, 18650 cell and 26650 cell have same length of 65mm, but the diameter is shorter, just 18 mm. 26650 battery vs 18650 battery Performance It is well known that the cell is the foundation of the battery and the performance of the cell is related to the performance of the battery pack. Cell performance is determined by many aspects, the most fundamental and most important of which is safety. Safety Compared to ternary lithium-ion batteries, lithium iron phosphate batteries have higher safety because they use lithium iron phosp