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Flashlights and lasers: which battery?

Energizer's guide names these cells for flashlights, laser pointers, laser sights and night-vision goggles.

• SR41SWSilver oxide · 1.55 V · 7.9 × 3.6 mmGuide: laser pointers
• SR1136SWSilver oxide · 1.55 V · 11.6 × 3.6 mmGuide: flashlights
• SR41WSilver oxide · 1.55 V · 7.9 × 3.6 mmGuide: laser pointers
• LR41Alkaline · 1.5 V · 7.9 × 3.6 mmGuide: laser pointers
• CR123ALithium · 3 V · 17 × 34.5 mmGuide: laser sights, flashlights
• LR1Alkaline · 1.5 V · 12 × 30.2 mmGuide: laser sights, night vision goggles, flashlights

Source: Energizer battery cross reference guide, Energizer, checked 2026-10-29. The guide pairs a cell with a kind of device. Your model may take a different cell.

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