Disclaimer

Two cells that measure the same are not automatically interchangeable. Voltage, chemistry, maximum discharge current and internal resistance all affect whether a substitute works — and in some devices, whether it is safe.

Lithium and lithium-ion cells in particular must never be fitted into a device or charger designed for a different chemistry. Rechargeable cells require a charger matched to their chemistry.

The figures on this site are nominal reference values. Manufacturers vary, specifications change, and published figures can be wrong. Where your device manual or the cell manufacturer disagrees with this site, follow them, not us.

This site is published for general information only. It is not professional, technical or safety advice, and it is not a substitute for your device’s documentation. The information is provided as is, without warranty of any kind, express or implied, including as to accuracy, completeness or fitness for a particular purpose.

You use this information entirely at your own risk. To the fullest extent permitted by law, we accept no liability for any loss, damage or injury — including damaged devices, leaking or overheating cells, or fire — arising from the use of, or reliance on, anything published here.

Dispose of batteries at an appropriate recycling point. Never attempt to recharge a single-use cell, never short a cell’s terminals, and keep button and coin cells away from children and pets — swallowing one is a medical emergency.