Highfields Amateur Radio Club
Glossary Appendix.
copyright date

Battery Details.

Do not confuse with the LR60 which is the same size but 1.5 volts and is not rechargeable.
Do not confuse with the ML621 which is the same size but 3 volts.
Do not confuse with the MT621 which is the same size but only 1.5 volts.

Equivalents:

NBL621, NBL-621,

Image
not to scale.
Common
Name.
Dimensions.
Diameter × Thickness.
Chemical Composition. Nominal Voltage.
battery NBL621. 6.8 mm × 2.1 mm

Contacts:
Case and flat base Positive.
Raised area Negative.

Niobium Lithium. 2 volts
(4 mAh).

Back to Equivalents page.