Side-by-Side Comparison
Cylindrical Cells
18650 vs. 9V Battery
Comparing 2 standards across 6 specifications. 6 key differences identified.
Comparing:
18650
9V Battery
An 18650 Li-ion cell measures 18.6mm in diameter and 65.2mm in length. It operates at 3.6V/3.7V nominal, charges up to 4.2V max, and has a discharge cutoff of 2.5V with capacities between 2200 and 3500 mAh.
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
6 Parameters| Parameter / Spec | ||
|---|---|---|
|
Nominal Operating Voltage
|
3.60 / 3.70 V | 9.00 V |
|
Diameter
|
18.60 mm | — |
|
Overall Length
|
65.20 mm | — |
|
Height
|
— | 48.50 mm |
|
Width
|
— | 26.50 mm |
|
Depth
|
— | 17.50 mm |