V 65 HT Rechargeable Ni-MH Button Data Sheet Type Number: 55707 System: Nickel Metal Hydride/ Nominal Voltage [V]: 1.2 Nominal Capacity C [mAh]: 65 Typical Capacity C [mAh]: 70 KOH Electrolyte at 13 mA / 1.00 V Weight, approx. [g] Dimensions [mm]: Diameter [d]: Height [h]: 4 min. max. 15.4 15.5 5.8 6.0 UL Recognition: MH 13654 (N) Coding: Manufacturing 5 digit code (123 = day/4 = year/ 5 = version) Temperature Ranges [°C] min. max. -40 85 less than 90 days -40 65 less than 1 year -40 50 Discharge: -20 85 Charge: 0 85 Storage: less than 30 days Charging Method: Normal Charging: 6.5 mA for 14 – 16 h Accelerated Charging (20°C): 13 mA for 7 h Fast Charging: 32.5 mA for 3 h * Time controlled, voltage control recommended Trickle Charging: 1.95 mA Overcharge (20°C): 6.5 mA continuous Charge Retention [%] at 20°C: 90 13 mA up to 1 year Capacity available after 1 month Storage at 20°C Internal Resistance [Ohm]: 1.25 at charged cells, 20°C, DC: 0.2 CA/2 CA, (IEC 61951-2) Impedance [Ohm]: 0.22 at charged cells, 20°C, AC: 1kHz, (IEC 61951-2) Typical Capacities [mAh]: at 65 mA / 0.90 V Max. Discharge Current (cont.) [mA]: 50 130 Life Expectancy (typical): IEC Cycle: 1000 Cycles Trickle Charge: up to 6 years (20°C) Trickle Charge: up to 5 years (45°C) * for fully discharged cells, 20 °C Capacities based on normal charging VARTA Microbattery GmbH, Daimlerstraße 1, D-73479 Ellwangen/Jagst Tel.: (+49) 7961/921-0, Telefax: (+49) 7961/921-553 Subject to change without prior notice ! Date of Issue: 2008-02-08