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Niobium-Lithium Rechargeable Batteries (NBL series): Individual Specifications NBL621 NBL621/F9D ■ Dimensions(mm) ■ Available Tab Configuration Weight:0.25g 2.15 + 2.6 0.45 6 6 MAX. 9.9 6.8 +- 00.15 0.15 0.5 6.8 +0 -0.15 2.35±0.5 1.5±0.7 2.05 3.5 0.05 +0 2.15 -0.3 Note: This bare cell diagram is for size reference only. Please refer to the tab configurations at the right for available tabs. Notes: A) To ensure proper electrical contact, it is recommended that rechargeable coin cell batteries be used with tabs for PC Board mounting. Please consult Panasonic before planning a design that will use bare coin cells without tabs (e.g. using a holder). B) Please contact Panasonic for requests on custom tab configurations. Minimum order requirements may apply. ■ Specification Nominal voltage (V) 2 Nominal capacity (mAh) 4 Continuous standard load (mA) 0.01 Operating temperature (C) -20 ~ +60 ■ Discharge characteristics 3.0 Temp charge 2.5V-3K - 24h discharge 100k (13µA) Voltage(V) 2.5 2.0 1.5 1.0 0.5 0.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Discharge capacity(mAh) ■ Recovered capacity (According to charge voltage) Discharge capacity (mAh) 6 ML621 5 NBL621 4 3 VL621 2 1 0 1.5 2.0 2.5 3.0 Charge voltage (V) 3.5 4.0 LITHIUM HANDBOOK AUGUST 2003 This information is generally descriptive only and is not intended to make or imply any representation, guarantee or warranty with respect to any cells and batteries. Cell and battery designs/specifications are subject to modification without notice. Contact Panasonic for the latest information.