![18650 Battery Review, Test, Specs 2020: 18650 Battery size-dimensions. What do all these numbers really mean? Wild, wild world of Lithium-ion batteries 18650 Battery Review, Test, Specs 2020: 18650 Battery size-dimensions. What do all these numbers really mean? Wild, wild world of Lithium-ion batteries](https://2.bp.blogspot.com/-PCqEtyAZEkE/V0lAf1X8LzI/AAAAAAAABcU/CD_tvDRiA8weOBm2IEyOyGmMSFmdSWMRwCLcB/w1200-h630-p-k-no-nu/18650-battery-size-dimensions.jpg)
18650 Battery Review, Test, Specs 2020: 18650 Battery size-dimensions. What do all these numbers really mean? Wild, wild world of Lithium-ion batteries
![Are there different sizes to 18650 batteries? What do I buy and what should I look for? Cuz current ones I have dont fit in my Nextorch TA 30 (explained further below) : Are there different sizes to 18650 batteries? What do I buy and what should I look for? Cuz current ones I have dont fit in my Nextorch TA 30 (explained further below) :](https://external-preview.redd.it/r1HuesfXljbFU8T4N3R1iFSCen5tlG41PSbH7kmO2hQ.jpg?auto=webp&s=f22af33e38dc20d11299ef44f409051c6419fa4e)
Are there different sizes to 18650 batteries? What do I buy and what should I look for? Cuz current ones I have dont fit in my Nextorch TA 30 (explained further below) :
![2Pcs 3.7V 2200mAh 18650 2.73Inch Length Rechargeable Li-ion Batteries with Protection Board Flattop Green, Tlife 18650A battery, well designed and Grade A battery.., By TLIFE - Walmart.com 2Pcs 3.7V 2200mAh 18650 2.73Inch Length Rechargeable Li-ion Batteries with Protection Board Flattop Green, Tlife 18650A battery, well designed and Grade A battery.., By TLIFE - Walmart.com](https://i5.walmartimages.com/asr/c9b7450e-ebbd-4ab1-a451-97de0f4b879b_1.8fec1974ddde0f6a180628fff74a2845.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)