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Combination smoke and CO detector
AA
Battery this device uses · 3× · 1.5V
Combo smoke/CO alarms often use 2–3 AA, or a sealed battery in newer models.
Specifications
| Battery type | AA |
| Quantity | 3× |
| Voltage | 1.5V |
| Equivalents | LR6, MN1500, AM3, R6, 15A |
🔍 Battery cross-reference finder
Type any common code to see its voltage, size and interchangeable equivalents.
💡 Open the battery compartment, note the + / - orientation of the old cells, and replace all of them at once with the same size and type.
Frequently asked questions
- What battery does the combination smoke and CO detector take?
- It uses a AA (×3), 1.5V. Combo smoke/CO alarms often use 2–3 AA, or a sealed battery in newer models.
- What is a good replacement for the AA?
- Equivalents you can use: LR6, MN1500, AM3, R6, 15A.
- How do I replace it?
- Open the battery compartment, note the + / - orientation of the old cells, and replace all of them at once with the same size and type.