Side-by-Side Comparison
Cylindrical Cells
AA Battery vs. AAA Battery
Comparing 2 standards across 3 specifications. 2 key differences identified.
Comparing:
AA Battery
AAA 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 AAA battery (IEC designation LR03, ANSI 24A) measures 10.5mm in diameter and 44.5mm in length. Alkaline AAA cells output 1.5V nominal; NiMH rechargeable AAA cells output 1.2V. Typical alkaline capacity runs roughly 800 to 1,200 mAh depending on discharge rate.
Specification Comparison Table
3 Parameters| Parameter / Spec | ||
|---|---|---|
|
Diameter
|
14.50 mm | 10.50 mm |
|
Overall Length
|
50.50 mm | 44.50 mm |
|
Alkaline Voltage
|
1.50 V | 1.50 V |