This document provides specifications for a nickel-metal hydride battery, model HF-B1U. The battery has a nominal voltage of 1.2V and a typical capacity of 880mAh. It can be fast charged in about 1.2 hours with a charging current of 880mA. The battery has dimensions of 17.0mm width, 6.1mm thickness, and 48.0mm height and weighs approximately 18g. Charts show the battery's voltage over time during charging and discharging.

1. Cell Type HF-B1U
Specifications
Type : Nickel-Metal Hydride Battery Size : B1
Typical 880mAh
Capacity1)
Minimum 810mAh
17.0mm 6.1mm
Nominal Voltage 1.2V
Charging Current Fast Charge2) 880mA about 1.2h
Time
Charge Fast Charge2) 0°C ~ 40°C
Condition
Discharge Condition 0°C ~ 50°C
48.0mm
48.0mm
Ambient
Temp. ~30days -20°C ~ 50°C
Storage 30 ~ 90days -20°C ~ 40°C
Condition
90days ~ -20°C ~ 30°C
1 year
Internal Impedance3) About 25mΩ
(after discharge to E.V.=1.0V) (at 1000Hz)
Weight4 ) About 18g
Size4) 17.0(W) 6.1 (T) 48.0(H)mm
: (Width) (Thickness) (Height)
H 48.0mm 1) Charge : 88mA 16h, Discharge : 176mA (E.V.=1.0V) at 25˚C
Dimensions 2) Use recommended charging system.
W 17.0mm
(with tube) 3) After a few chargeand discharge cycles under the above 1) condition.
T 6.1mm 4) With tube.
Typical Characteristics
Charge Discharge
1.7 1.5
0˚C Charge:88mA x 16h
1.6 Rest:1h
25˚C 1.4
Discharge:176mA,880mA,1760mA(E.V.=1.0V)
40˚C Ambient Temp.:25˚C
1.5
1.3
1.4 880mA
Charge:880mA(-∆=10mV) 176mA
Cell Voltage (V)
Cell Voltage (V)
Ambient Temp.:25˚C 1.2
1.3
1.1
1.2
1760mA
1.0
1.1
1.0 0.9
0 10 20 30 40 50 60 70 80 90 0 100 200 300 400 500 600 700 800 900 1000
Charge Time (min.) Discharge Capacity (mAh)