1. Data Sheet Model No.: GP40AAAM
`Type : Rechargeable Nickel Metal Hydride Fast Charge (charge control required)
Cylindrical Cell Voltage (V)
1.6
Nominal Dimension : Φ = 10.2 mm 400mA
(with Sleeve) H = 29.2 mm 1.5 (1C)
Applications : Recommended discharge current
40 to 1200mA 1.4
Nominal Voltage : 1.2V 200mA
1.3 (0.5C)
Capacity : Minimum: 400mAh
Typical: 428mAh 1.2
when discharged at 0.2C to 1.0V at 20oC
1.1
0 20 40 60 80 100 120 140 160
Charging Condition : 40mA for 16 hrs at 20 Co Capacity Input ( % )
Fast Charge : 200mA to 400mA (0.5 to 1C) Low rate discharge
charge termination control recommended Voltage (V)
control parameters: 1.5
-∆V : 0 - 5mV
1.4 o
DT/dt ** : 0.8oC/min (0.5 to 0.9C) Charge: 40mA x 16hrs at 20 C
: 0.8 - 1oC/min (1C) 1.3
TCO ** : 45 - 50oC 1.2
Timer **: 105% nominal input 1.1
** For reference only
1
Service Life : >500 cycles (IEC standard)
0.9 200mA 80mA 40mA
Continuous : 40 mA maximum current for 1 year 0.8 (0.5C) (0.2C) (0.1C)
Overcharge No conspicuous deformation 0.7
And/or leakage 0 2 4 6 8 10 12 14
Weight : 7.7 g Discharge Time ( Hrs )
High Rate Discharge
Internal Resistance : Average 65 mΩ upon fully charged
(Range 48 – 80 mΩ Voltage (V)
1.5
Max. Charging Voltage : 1.5V at 40 mA charging 1.4 o
Charge: 40mA x 16hrs at 20 C
1.3
Ambient Temperature : Standard Charging : 0 to 45oC 1.2
Range Fast Charging : 10 to 45oC
Discharging : -20 to 50oC 1.1
Storage : -20 to 35oC 1
0.9
1200mA 800mA 400mA
+0 0.8
(3C) (2C) (1C)
10.2 4.7 (Ref) 0.7
-0.2 0 10 20 30 40 50 60 70
Discharge Time ( Mins )
* The information (subject to change without prior
+0
notice) contained in this document is for
29.2 Unit : mm
-0.7
reference only and should not be used as a
basis for product guarantee or warranty. For
applications other than those described here,
please consult your nearest GP Sales and
Marketing Office or Distributors.
Manufacturer reserves the right to alter or amend the design, model and specification without prior notice. TRS0219 Rev.02