V 80H

Rechargeable NiMH Button

UL Recognition ………………………… MH 13654(N)

System …………………………….…….. Nickel Metal Hydride / KOH Electrolyte

Nominal Voltage ……………………….. 1.2 V

Nominal Capacity C ……………….……. 70 mAh

Typical Capacity C ……………….……. 80 mAh at 14mA / 1.00V

Weight (approx.) …………………………4 g

Dimensions

Diameter (A) ...…………………………….15.4 +/- 0.1mm

Height (B) ………………………………… 5.9 +/- 0.1mm

Temperature Ranges

Storage …………………………………… -40°C ~ 65°C

Discharge ………………………………… -20°C ~ 65°C*

Charger ……………………………………  0°C ~ 65°C*

Charging Method

Normal Charging: 7 mA for 14 – 16 h

Accelerated Charging (20°C): 14 mA for 7-8 h

Fast Charging: 35 mA for 3 h * Time controlled, voltage control recommended

Trickle Charging: 2.1 mA

Overcharge (20°C): 7 mA continuous ,14 mA up to 1 year

Charge Retention [%] at 20°C: 90 , Capacity available after 1 month Storage at 20°C

Internal Resistance [Ohm]: 1.3 , 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 70 mA / 0.90 V , 53

Max. Discharge Current (cont.) [mA]: 140

Life Expectancy (typical):

IEC Cycle: 1000 Cycles

Trickle Charge: up to 6 years (20°C)

Trickle Charge: up to 3 years (45°C)

* for fully discharged cells, 20 °C , Capacities based on normal charging

1.) Prior to use read Rechargeable NiMH Button Cell handbook @ www.varta-microbattery.com