Datasheet
Data Sheet Model No.: GP20R8H
Manufacturer reserves the right to alter or amend the design, model and specification without prior notice. TRS0344 Rev.01
0 20 40 60 80 100 120 140 160
Capacity Input (%)
7.7
8.4
9.1
9.8
10.5
11.2
Voltage (V)
0 2 4 6 8 10 12 14
Discharge Time (Hrs)
4.9
5.6
6.3
7
7.7
8.4
9.1
9.8
10.5
Voltage (V)
0 10203040506070
Discharge Time (Mins)
4.9
5.6
6.3
7
7.7
8.4
9.1
9.8
10.5
Voltage (V)
`Type : Rechargeable Nickel Metal Hydride
Cylindrical Cell
Nominal Dimension
(with Sleeve)
15.7 mm(l) x 26.5 mm(w) x 48.5 mm(h)
Applications : Recommended discharge current
20 to 600 mA
Nominal Voltage : 8.4V
Capacity : Minimum: 200 mAh
Typical: 210 mAh
when discharged at 0.2C to 1.0V at 20
o
C
Charging Condition : 20 mA for 16 hrs at 20
o
C
Fast Charge : 100 mA to 200 mA (0.5 to 1C)
charge termination control recommended
control parameters:
-∆V : 0 - 35mV
DT/dt ** : 0.8
o
C/min (0.5 to 0.9C)
: 0.8 - 1
o
C/min (1C)
TCO ** : 45 - 50
o
C
Timer **: 105% nominal input
** For reference only
Service Life : >500 cycles (IEC standard)
Up to 1000 cycle (noy less than 60% of
Nominal at 0.1C charge / 0.2C Discharge)
Continuous
Overcharge
: 20 mA maximum current for 1 year
No conspicuous deformation
and/or leakage
Weight : 42.5 g
Internal Resistance :
Maximum 1300 mΩupon fully charged
at 1000HZ
Max. Charging Voltage : 10.5V at 20 mA charging
Ambient Temperature
Range
: Standard Charging
Fast Charging
Discharging
Storage
:
:
:
:
0 to 45
o
C
10 to 45
o
C
-20 to 50
o
C
-20 to 35
o
C
* The information (subject to change without prio
r
notice) contained in this document is fo
r
reference only and should not be used as a
basis for product guarantee or warranty. Fo
r
applications other than those described here,
please consult your nearest GP Sales and
Marketin
g
Office or Distributors.
Fast Charge (charge control required)
200mA
(1C)
Low Rate Discharge
Charge: 20mA x 16hrs at 20
o
C
100mA
(0.5C)
40mA
(0.2C)
20mA
(0.1C)
High Rate Discharge
Charge: 20mA x 16hrs at 20
o
C
600mA
(3C)
400mA
(2C)
200mA
(1C)
12.7mm
15.7mm
Unit: mm
46.00mm
48.50mm
26.50mm
100mA
(0.5C)