26650 vs. 9V Battery
Comparing 2 standards across 7 specifications. 7 key differences identified.
A 26650 Li-ion cell measures 26mm in diameter and 65mm in length, used in high-drain devices like flashlights, power tools, and RC-hobby battery packs. The format is produced in multiple chemistries with different nominal voltages, so '26650' alone does not guarantee a specific voltage.
A 9V battery (IEC designation 6LR61, commonly called PP3) is a rectangular battery measuring approximately 48.5mm x 26.5mm x 17.5mm with two snap terminals. Alkaline 9V cells output 9.0V nominal from six internal 1.5V cells in series, with typical capacity around 400-600 mAh.
Specification Comparison Table
7 Parameters| Parameter / Spec | ||
|---|---|---|
|
Diameter
|
26.00 mm | — |
|
Overall Length
|
65.00 mm | — |
|
Chemistry
|
Lithium-ion (Li-ion or LiFePO4, varies by product) | — |
|
Height
|
— | 48.50 mm |
|
Width
|
— | 26.50 mm |
|
Depth
|
— | 17.50 mm |
|
Nominal Operating Voltage
|
— | 9.00 V |