not to scale.
Name.
Diameter × Thickness.
Contacts:
Case and flat base Positive.
Raised area Negative
(4 mAh).
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. |
|---|---|---|---|---|
|
| NBL621. | 6.8 mm × 2.1 mm Contacts: | Niobium Lithium. | 2 volts (4 mAh). |