VARTA CR1220 lithium-knoopcel 3V 35mAh 12,5x2,0mm (6220101401)

For devices that demand stable 3V output in a compact coin format, the VARTA CR1220 lithium button cell delivers consistent power without the voltage sag common in lower-quality cells. Its 35mAh capacity and 10-year shelf life make it a reliable choice for low-drain electronics that need to work on first press, even after long storage.

Highlights

• Lithium manganese dioxide chemistry for high energy density and flat discharge curve
• Nominal voltage 3V, capacity 35mAh
• Standard CR1220 size: 12.5mm diameter, 2.0mm height
• Mercury-free, lead-free, and cadmium-free
• Operating temperature range -20°C to +70°C
• Up to 10 years shelf life

In daily use

This cell is suited for watches, calculators, car key fobs, medical devices, and other compact electronics. The stable voltage output ensures consistent performance until end of life, and the wide temperature tolerance covers both cold winter mornings and hot summer interiors. Because it is a primary (non-rechargeable) cell, simply replace it when the device indicates low battery.

Full specifications

• Battery type: Lithium button cell
• Battery size: CR1220
• Chemistry: Lithium manganese dioxide (LiMnO2)
• Nominal voltage: 3 V
• Nominal capacity: 35 mAh
• Diameter: 12.5 mm
• Height: 2.0 mm
• Rechargeable: No
• Shelf life: Up to 10 years
• Operating temperature: -20°C to +70°C
• IEC standard: CR1220
• Equivalent models: DL1220, ECR1220
• Terminal type: Flat top
• Mercury content: Mercury-free
• Lead content: Lead-free
• Cadmium content: Cadmium-free
• Unit count: 1

Final note

With its long shelf life and stable voltage, the VARTA CR1220 is a dependable power source for critical low-drain devices. Keep a spare in your drawer so you're never caught with a dead key fob or watch.