Test/review of Energizer C 2500mAh NH35 (Silver)

HKJ

Flashaholic
Joined
Mar 26, 2008
Messages
9,715
Location
Copenhagen, Denmark
[size=+3]Energizer C 2500mAh NH35 (Silver)[/size]

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Official specifications:
  • Chemical system: Nickel-Metal Hydride (NiMH)
  • Nominal voltage: 1.2V
  • Rated Capacity: 2500mAh
  • Typical weight: 66.0g
  • Internal resistance: 11mOhm charged, 21mOhm half charged.
  • AC impedance: 9mOhm charged
  • Operating temperature: Charge: 0°C ~ 40°C, Discharge: 0°C ~ 50°C, Storage: -20°C ~ 30°C
  • Note about specifications: Contents herein do not constitute a warranty and are for reference only.

Energizer%20C%202500mAh%20NH35%20(Silver)-info.png


Maximum temperature raise at different discharge currents: 1A:+0,3°C, 2A:+1,3°C, 3A:+2,4°C, 5A:+4,8°C, 7A:+6,7°C, 10A:+9,3°C, 15A:+12,2°C, 20A:+12,8°C
NiMH C cells from Energizer, they are fairly low capacity.



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DSC_5311.jpg

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Energizer%20C%202500mAh%20NH35%20(Silver)-Capacity.png


The two cells matches fairly well, the performance is typical for NiMH, but rather low for the size.

Energizer%20C%202500mAh%20NH35%20(Silver)-CapacityTime.png


Energizer%20C%202500mAh%20NH35%20(Silver)-CapacityTimeHours.png


Energizer%20C%202500mAh%20NH35%20(Silver)-Energy.png


Energizer%20C%202500mAh%20NH35%20(Silver)-PowerLoadTime.png


Energizer%20C%202500mAh%20NH35%20(Silver)-CurrentTest.png


Energizer%20C%202500mAh%20NH35%20(Silver)-Charge.png




[size=+3]Conclusion[/size]

The batteries looks fine and performance is very good for AA sized batteries, but not very impressive for a C sized cell.



[size=+3]Notes and links[/size]

How is the test done and how to read the charts
Compare to other AA/AAA batteries: Alkaline/NiMH/Lithium
 

IonicBond

Enlightened
Joined
May 2, 2013
Messages
221
Location
Southern California
Thanks HKJ!

I use the same D-cell versions (same 2500mah rated capacity) in a few low-drain portable radios that call for D-Cells, but I don't need to lug the weight of the larger capacity versions around.

I highly suspect that inside is just a true AA. Care to cut yours open? :)

I've also used AA eneloops in the fully-enclosed Eneloop D-spacers too of course, but had to try these out. They seem ok, but time will tell. The trick is to get fresh ones, not the ones I've seen hanging on a peg at my home improvement store for over 10 years. :)
 
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