Side-by-Side Comparison
Cylindrical Cells
AA Battery vs. D Battery
Comparing 2 standards across 3 specifications. 2 key differences identified.
Comparing:
AA Battery
D Battery
A standard AA battery measures 14.5mm in diameter and 50.5mm in length. Primary Alkaline cells output 1.5V, NiMH rechargeable cells output 1.2V. Inserting a 3.6V 14500 Li-ion cell into 1.5V AA devices destroys the circuit.
A D battery (IEC designation LR20, ANSI 13A) measures 34.2mm in diameter and 61.5mm in length -- the largest common cylindrical primary cell. Alkaline D cells output 1.5V nominal, with typical capacity in the range of roughly 12,000 to 20,000 mAh depending on discharge rate.
Specification Comparison Table
3 Parameters| Parameter / Spec | ||
|---|---|---|
|
Diameter
|
14.50 mm | 34.20 mm |
|
Overall Length
|
50.50 mm | 61.50 mm |
|
Alkaline Voltage
|
1.50 V | 1.50 V |