Highfields Amateur Radio Club
Glossary Appendix.
copyright date

Battery Details.

These rechargeable batteries were developed for solar powered watches. Some have wire "flags" spot welded to them for the connection (see image at bottom) others are as a standard button battery.
Developed to replace the GoldCap GC920 capacitor in many solar powered watches.

The battery is the same for all versions, differing numbers relate to "flag" type.

Equivalents:

295-29, 295-34, 295-38, 295-39, 295-40, 295-56, 295-57, 295-4000, 295-5600, 3023-5MZ, 3023-44Z, 3023-24R, 3023-24T, 3023-24X, 3023-24Y, 3029-110, MT920, MT920A, MT920D, TC920S, TS920,

Image
not to scale.
Common
Name.
Dimensions.

Diameter × Thickness.
Chemical Composition. Nominal Voltage.
battery MT920. 9.5 mm × 2 mm

Contacts:

Case and flat base Positive.
Raised area Negative.
(may have flag terminal added for application)

Manganese Titanium Lithium Rechargeable. 1.5 volts
(4 mAh).

various wire 'flags' are added for different fitments

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