Do not confuse with the CR1620 which is the same size but twice the voltage and not rechargeable.
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 capacitor in some solar powered watches.
The battery is the same for all versions, differing numbers relate to "flag" type.
295-31, 295-44, 295-65, MT1620,
not to scale.
Diameter × Thickness.
|Chemical Composition.||Nominal Voltage.|
|MT1620.||16 mm × 2 mm|
|Manganese Titanium Lithium Rechargeable.||1.5 volts|