Battery Size and Volt Comparison
Size and Voltage Chart
This is a chart that illustrates the approximate sizes and voltages of the various rechargeable lithium batteries that are available on the market. The numerical designation of the battery gives an approximation of the size. For example, a 10280 battery is approximately 10mm in diameter and 28mm tall, the final 0 indicates that it is round. Please note that the sizes are approximate, and some batteries, especially protected batteries, may be too large to fit your particular application, please check the exact sizes before ordering.
10180 battery 3.7v - 10mm x 18mm (1/3 AAA size)
10280 battery 3.7v - 10mm x 28mm (1/2 AAA size)
10440 battery 3.7v - 10mm x 44mm (AAA size)
14250 battery 3.7v - 14mm x 25mm (1/2 AA size)
14500 battery 3.7v - 14mm x 50mm (AA size)
16340 battery 3.7v - 16mm x 34mm (nominal CR123a size)
17335 battery 3.7v - 17mm x 35mm (nominal CR123a size)
17500 battery 3.7v - 17mm x 50mm - slightly wider than CR-123a, fits most lights, but 1.5 times the height of the typical CR-123a battery - two of these will generally replace three of the CR-123a batteries
17670 battery 3.7v - 17mm x 67mm - about the size of two CR-123a batteries, but less overall voltage, 4.2v max vs. 6v max from CR-123a batteries
18350 battery 3.7v - 18mm x 35mm - the same diameter of a single CR-123a battery, these will only fit applications designed for their wider size
18500 battery 3.7v - 18mm x 50mm - wider than CR-123a, about 1.5 times the height of a single CR-123a battery, these will only fit applications designed for their wider size
18650 battery - 18mm x 65mm - wider than CR-123a, about 2x the height of a single CR-123a battery, these will only fit applications designed for them
Size and Voltage Chart
This is a chart that illustrates the approximate sizes and voltages of the various rechargeable lithium batteries that are available on the market. The numerical designation of the battery gives an approximation of the size. For example, a 10280 battery is approximately 10mm in diameter and 28mm tall, the final 0 indicates that it is round. Please note that the sizes are approximate, and some batteries, especially protected batteries, may be too large to fit your particular application, please check the exact sizes before ordering.
10180 battery 3.7v - 10mm x 18mm (1/3 AAA size)
10280 battery 3.7v - 10mm x 28mm (1/2 AAA size)
10440 battery 3.7v - 10mm x 44mm (AAA size)
14250 battery 3.7v - 14mm x 25mm (1/2 AA size)
14500 battery 3.7v - 14mm x 50mm (AA size)
16340 battery 3.7v - 16mm x 34mm (nominal CR123a size)
17335 battery 3.7v - 17mm x 35mm (nominal CR123a size)
17500 battery 3.7v - 17mm x 50mm - slightly wider than CR-123a, fits most lights, but 1.5 times the height of the typical CR-123a battery - two of these will generally replace three of the CR-123a batteries
17670 battery 3.7v - 17mm x 67mm - about the size of two CR-123a batteries, but less overall voltage, 4.2v max vs. 6v max from CR-123a batteries
18350 battery 3.7v - 18mm x 35mm - the same diameter of a single CR-123a battery, these will only fit applications designed for their wider size
18500 battery 3.7v - 18mm x 50mm - wider than CR-123a, about 1.5 times the height of a single CR-123a battery, these will only fit applications designed for their wider size
18650 battery - 18mm x 65mm - wider than CR-123a, about 2x the height of a single CR-123a battery, these will only fit applications designed for them
