Maxell ML2016 2025 Production Year Secondary Battery for Casio

Shipping Maxell ML2016 Rechargeable Battery for Casio

This is a manganese-lithium rechargeable battery (ML2016) from Maxell.

Manufactured in 2025. The design on the back has been changed.

For Casio, it is used in older generation solar watches.

Distribution in Japan is limited, and it is only shipped to manufacturers. It cannot be purchased individually at watch stores, so we have imported it.

It is labeled as a genuine part, but it is not sold by Casio Computer. Please understand that it means equivalent to a genuine part. The photos have been edited to avoid misunderstanding.

Please check which models it is compatible with yourself. You can confirm the battery type by removing the watch's back cover.

Furthermore, battery manufacturers recommend attaching special terminals to prevent misuse as primary batteries, and Casio is one of the few companies that incorporates them without terminals.
Long-established watch manufacturers like Seiko, Orient, and Citizen have the same ML2016 with welded terminals as instructed, and cannot be used as is. The battery markings are the same, so please be careful not to confuse them.

As it is a rechargeable battery, there is no recommended expiration date for use like primary batteries.

Precautions
・Do not touch with bare hands or handle with metal tweezers. The battery will short and break.
・Do not measure the voltage with an analog tester. It will discharge and damage the battery. (Autorange digital testers are acceptable.)
・Do not use with the battery's (+) and (-) reversed.
・Do not put in fire or heat. It may rupture and cause injury.
・Do not deform, disassemble, or modify.
・Do not solder directly. The internal resin separator will melt and break.
・It is not fully charged. Please charge it before use.

This is for parts sales. We do not provide support, so please understand this in advance.

Shipping: Yu-Packet Post Mini. Delivery on Saturdays, Sundays, and holidays.

No discounts.
For multiple purchases or combined shipping, please contact us for shipping cost discounts.