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.
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,
not to scale.
Diameter × Thickness.
|Chemical Composition.||Nominal Voltage.|
|MT920.||9.5 mm × 2 mm|
|Manganese Titanium Lithium Rechargeable.||1.5 volts|