ML2016 battery: equivalents & specs
The ML2016 is a 3 volt rechargeable lithium coin cell in the CR2016's 20 by 1.6 mm case, holding about 25 mAh. Solar watches and other trickle-charged devices use it where a slim rechargeable is needed and a primary cell would be a safety risk.
Compatible replacements
- CR2016: Primary cell of the same size; never fit it in a device that charges its battery.
⚠️ Only for devices designed to charge it; do not interchange with the primary CR2016 in either direction.
Buying and replacement notes
Like its ML siblings, this cell exists for devices with built-in charging. Capacity per charge is small but the device tops it up continuously, and Maxell rates the chemistry for years of shallow cycling. When servicing a solar watch, resist the pharmacy's offer of a CR2016: it fits perfectly and fails dangerously under charge current.
Commonly used in
Need a replacement?
Shop ML2016 batteries on Amazon →⚠️ Keep away from children. Swallowed button batteries, especially 20 mm lithium coins, cause severe injury within hours. If a child swallows one, call the 24/7 National Battery Ingestion Hotline (US) at 800-498-8666 or poison control at 800-222-1222 immediately. What every parent should know.