LR44 battery reference
An LR44 is a 1.5V alkaline button cell, typically 11.6mm wide and 5.4mm thick.
Exact specs
| Type | LR44 (common aliases: AG13, A76) |
|---|---|
| Diameter | 11.6 mm |
| Thickness | 5.4 mm |
| Nominal voltage | 1.5V |
| Chemistry | Alkaline manganese dioxide |
| Typical capacity | 110-150 mAh (drain dependent) |
What devices commonly use it
Small toys, laser pointers, calculators, and basic watches commonly use LR44-type cells.
What it's interchangeable with
LR44 and SR44 are often physically interchangeable. SR44 generally delivers flatter voltage under load and better high-drain performance.
What it's NOT interchangeable with
Do not replace with 3V coin cells such as CR2032 because voltage and form factor differ.
Common mistakes
- Assuming all AG13-labeled cells are silver oxide.
- Using LR44 in precision devices that expect SR44 stability.
- Ignoring equivalent code confusion at checkout.
Related standards
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