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Calculators: which battery?

Calculators named on Energizer's guide take coin lithium, silver-oxide or alkaline buttons, or a 12 V A27 in a few models. Match the code on the old cell. A 3 V coin and a 1.5 V button are never interchangeable.

• SR626SWSilver oxide · 1.55 V · 6.8 × 2.6 mmGuide: calculators
• SR626WSilver oxide · 1.55 V · 6.8 × 2.6 mmGuide: calculators
• LR44Alkaline · 1.5 V · 11.6 × 5.4 mmGuide: calculators
• CR1220Lithium (CR) · 3 V · 12.5 × 2 mmGuide: calculators
• CR1632Lithium (CR) · 3 V · 16 × 3.2 mmGuide: calculators
• CR-P2Lithium · 6 V · size: see pageGuide: calculators
• 2CR5Lithium · 6 V · size: see pageGuide: calculators
• A27Alkaline · 12 V · 8 × 28.2 mmGuide: calculators

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.

All device types · Measure the old cell