Test/review of Panasonic Sub-C 3000mAh HHR300SCP (Brown paper)

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HKJ
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Test/review of Panasonic Sub-C 3000mAh HHR300SCP (Brown paper)

Panasonic Sub-C 3000mAh HHR300SCP (Brown paper)
DSC_4602
Official specifications:

  • Capacity average: 3050mAh
  • Capacity rated: 2800mAh
  • Internal impedance: 4mOhm @ 1000Hz
  • Standard charge: 300mA x 16hrs
  • Rapid charge: 3000mA x 1.2hrs
  • Size: ø23.0+0/-0.1mm 43.0+0/-1.5mm
  • Weight: 57g
  • Ambient temperature charging: Standard: 0°C ~ 45°C, Rapid: 0°C ~ 40°C
  • Storage temperature: 6 months: -20°C ~ 45°C, 2 years:-20°C ~ 35°C

Panasonic%20Sub-C%203000mAh%20HHR300SCP%20(Brown%20paper)-info
Maximum temperature raise at different discharge currents: 1A:+0,1°C, 2A:+0,8°C, 3A:+1,5°C, 5A:+4,1°C, 7A:+6,3°C, 10A:+9,1°C, 15A:+13,1°C, 20A:+16,2°C
This is a rather unknown battery size for many people. It is used for a lot of stuff, mostly battery packs, but may also be used inside regular C or D cell of the low capacity types.
DSC_4603 DSC_4604
DSC_4605
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Panasonic%20Sub-C%203000mAh%20HHR300SCP%20(Brown%20paper)-Capacity
The discharge curves tracks nicely for NiMH and the capacity is good.
Panasonic%20Sub-C%203000mAh%20HHR300SCP%20(Brown%20paper)-CapacityTime
Panasonic%20Sub-C%203000mAh%20HHR300SCP%20(Brown%20paper)-CapacityTimeHours
Panasonic%20Sub-C%203000mAh%20HHR300SCP%20(Brown%20paper)-Energy
Panasonic%20Sub-C%203000mAh%20HHR300SCP%20(Brown%20paper)-PowerLoadTime
Panasonic%20Sub-C%203000mAh%20HHR300SCP%20(Brown%20paper)-CurrentTest
Panasonic%20Sub-C%203000mAh%20HHR300SCP%20(Brown%20paper)-Charge
Conclusion
It is a good cell for battery packs, but I would prefer not to have it in my C or D cells.
Notes and links
This cell has been replaced by BK300SCP with about the same specifications.
The batteries was supplied by batteridoktorn.se for review.
How is the test done and how to read the charts
Compare to other AA/AAA batteries: Alkaline/NiMH/Lithium

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/