Batteries Rechargeable Batteries NiMH Batteries (Nickel Metal Hydride) NiMH Series HHR250SCH Data sheet
NICKEL METAL HYDRIDE BATTERIES: INDIVIDUAL DATA SHEET Typical Charge Characteristics HHR250SCH Cylindrical SC size (HR 23/43) Dimensions (with Tube) (mm) 2.0 Charge: 0.1It x 15h at 25, 40, 60˚C Discharge: 0.1It to 1.0V at 25˚C Voltage (V) 1.8 23.0 +- 01.0 1.6 1.4 1.2 25˚C 40˚C 60˚C 1.0 (+) Rest: 3h 0.8 0 500 1000 1500 2000 2500 3000 3500 4000 4500 Capacity (mAh) 43.0 +- 01.5 Typical Discharge Characteristics 2.0 Charge: 0.5It x 2.4h at 25˚C Rest: 1h Discharge: 1, 2, 3It to 0.8V at 25˚C Voltage (V) 1.8 ( ) Specifications 1.4 1.2 mm inch Diameter 23.0+0/-1.0 0.91+0/-0.04 1.0 Height 43.0+0/-1.5 1.69+0/-0.06 0.8 Approximate Weight Grams Ounces Low Rate Charge Standard Rapid Discharge < 1 year < 6 months Storage < 1 month < 1 week 55 1It 2It 3It 0 500 1000 1500 2000 2500 3000 3500 4000 4500 Capacity (mAh) 1.94 1.2V 2650 mAh 2500 mAh 5mΩ 1.6 250mA x 16hrs. 1250mA x 2.4 hrs.4 125mA x 32 hrs. 83mA x 48 hrs. ˚F ˚C 14˚F to 140˚F -10˚C to 60˚C 14˚F to 113˚F -10˚C to 45˚C -10˚C to 60˚C 14˚F to 140˚F -4˚F to 95˚F -20˚C to 35˚C -4˚F to 113˚F -20˚C to 45˚C -4˚F to 131˚F -20˚C to 55˚C -4˚F to 149˚F -20˚C to 65˚C Charge: 0.5It x 2.4h Rest: 1h Discharge: 10, 20, 30A to 0.8V at 20˚C 1.5 1.4 Voltage (V) Nominal Voltage Average2 Discharge Rated (Min.) Capacity1 Approx. Internal impedance at 1000Hz at charged state. Standard Rapid3 Charge Ambient Temperature 1.6 1.3 1.2 10A 1.1 20A 30A 1.0 0.9 0.8 0.7 0.6 0 500 1000 1500 2000 2500 3000 Capacity (mAh) 1 After charging at 0.1It for 16 hours, discharging at 0.2It. 2 For reference only. 3 Need specially designed control system Control System: dT/dt cut-off; 1 to 2°C/min -UV cut-off; -UV per cell = 5 to 10 mV T-control; T=65°C Rapid charger timer; 2.4h (at 1.25a) Trickle timer; within 2h 4 With control system Battery performance and cycle life are strongly affected by how they are used. In order to maximize battery safety, please consult Panasonic when determining charge / discharge specs, warning label contents and unit design. Note: [It] was previously expressed as [C]. [It] is an IEC standard expression for the amount of charge or discharge current and is expressed as: It(A) = Cn (Ah)/1h * [It] is the reference test current in ampres * [Cn] is the rated capacity of the cell or battery in Ampere-hours. n = the time base [hours] for which the rated capacity is declared NICKEL METAL HYDRIDE HANDBOOK AUGUST 2005 This information is generally descriptive only and is not intended to make or imply any representation, guarantee or warranty with respect to any cells and batteries. Cell and battery designs/specifications are subject to modification without notice. Contact Panasonic for the latest information.
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