Test/review of Energizer D 2500mAh NH50 (Silver)

12 posts / 0 new
Last post
HKJ
HKJ's picture
Offline
Last seen: 27 min 54 sec ago
Joined: 05/24/2011 - 12:23
Posts: 7434
Location: Copenhagen, Denmark
Test/review of Energizer D 2500mAh NH50 (Silver)

Energizer D 2500mAh NH50 (Silver)
DSC_6714
Official specifications:


  • Classification: Rechargeable
  • Chemical System: Nickel-Metal Hydride (NiMH)
  • Designation: ANSI-1.2H4
  • Nominal Voltage: 1.2 Volts
  • Rated Capacity: 2500 mAh* at 21°C (70°F) 500mA discharge to 1V
  • Typical Weight: 73.0 grams (2.6 oz.)
  • Typical Volume: 57.0 cubic centimeters (3.5 cubic inch)
  • Terminals: Flat Contact
  • Jacket: Plastic

Energizer%20D%202500mAh%20NH50%20(Silver)-info
Maximum temperature raise at different discharge currents: 1A:+0,3°C, 2A:+0,6°C, 3A:+1,3°C, 5A:+2,6°C, 7A:+3,6°C, 10A:+4,7°C, 15A:+5,3°C
This is low capacity D cells from one of the big brands and as can be seen on the photos the capacity is with a fairly discrete font.
DSC_6703 DSC_6704
DSC_6715 DSC_6716
DSC_6720
DSC_6721
DSC_6722
Energizer%20D%202500mAh%20NH50%20(Silver)-Capacity
The two cells matches fairly well and can deliver the rated capacity. At high current they are considerable better than AA cells.
Energizer%20D%202500mAh%20NH50%20(Silver)-CapacityTime
Energizer%20D%202500mAh%20NH50%20(Silver)-CapacityTimeHours
Energizer%20D%202500mAh%20NH50%20(Silver)-Energy
Energizer%20D%202500mAh%20NH50%20(Silver)-PowerLoadTime
Energizer%20D%202500mAh%20NH50%20(Silver)-CurrentTest
Energizer%20D%202500mAh%20NH50%20(Silver)-Charge
Conclusion
These batteries do not have more capacity than AA batteries, but are better at high current. They feel very lightweight and my guess is that they contain a smaller cell inside.
Notes and links
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/

Terry Oregon
Terry Oregon's picture
Offline
Last seen: 1 day 9 hours ago
Joined: 10/21/2017 - 17:03
Posts: 619
Location: Beaverton Oregon

Judging by the 2,600 reviews on Amazon, they are certainly popular.  About a third of the cost of two Powerex D cells, but also 1/4 the capacity.

My reviews: , My personal collection of lights LINK,  J5 Tactical V1 Pro review LINK,  Thirteen Optical Sensors review LINKZebralight SC700d review LINK,  Ray-O-Vac Super Power Sportsman review LINK,  Convoy S2+ color combos LINK,  How To flash D4V2 LINK,  Convoy S21A LINK

StandardBattery
Offline
Last seen: 2 years 9 months ago
Joined: 11/02/2016 - 08:51
Posts: 168
Location: MA, USA

Yes too bad they could not have made them at least 5000mAh. Still in some applications better than messing with an AA in an adapter.

patmurris
patmurris's picture
Offline
Last seen: 16 hours 48 min ago
Joined: 12/22/2014 - 15:54
Posts: 1715
Location: Nice, France

Thanks for the review.
It seems odd to see such a low capacity big cell.
As you suggest it, there may well be a AA cell inside.

HKJ
HKJ's picture
Offline
Last seen: 27 min 54 sec ago
Joined: 05/24/2011 - 12:23
Posts: 7434
Location: Copenhagen, Denmark
patmurris wrote:
As you suggest it, there may well be a AA cell inside.

Not AA, but a Sub-c cell.

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

patmurris
patmurris's picture
Offline
Last seen: 16 hours 48 min ago
Joined: 12/22/2014 - 15:54
Posts: 1715
Location: Nice, France

Did you open it?

Last time i had to deal with sub-Cs they where nowhere close to 2500mAh… but they where cheap ones.

PS: please cut this cell in half – and let’s see what’s inside! Evil

HKJ
HKJ's picture
Offline
Last seen: 27 min 54 sec ago
Joined: 05/24/2011 - 12:23
Posts: 7434
Location: Copenhagen, Denmark
patmurris wrote:
Did you open it?

Not yet.

patmurris wrote:
Last time i had to deal with sub-Cs they where nowhere close to 2500mAh… but they where cheap ones.

PS: please cut this cell in half – and let’s see what’s inside! Evil

I will probably open it when the weather get better, I prefer to open batteries outside.

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

Venom
Venom's picture
Offline
Last seen: 8 months 3 days ago
Joined: 03/28/2017 - 07:29
Posts: 186
Location: Massachusetts

Thanks for the review HKJ!

In this thread there a cutaway of the D Energizer www.budgetlightforum.com/node/34663?page=1

StandardBattery
Offline
Last seen: 2 years 9 months ago
Joined: 11/02/2016 - 08:51
Posts: 168
Location: MA, USA

Venom wrote:
Thanks for the review HKJ!

In this thread there a cutaway of the D Energizer www.budgetlightforum.com/node/34663?page=1


Right here to be exact.
Barkuti
Barkuti's picture
Offline
Last seen: 2 hours 47 min ago
Joined: 02/19/2014 - 14:46
Posts: 5564
Location: Alhama de Murcia, Spain

 

Totally looks like a sub-C cell spot-welded inside. 

 

The next ones are somewhat pricey (and Wink heavy), but more like the real deal:

 

Related test: http://www.torchythebatteryboy.com/p/nimh-d-size-batteries.html

 

Cheers Party

Deleting a just published post causes the forum thread answer notification to fail. Thus, if you need to change your just published post, edit it. Thanks.

Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.

I recommend saying no to Covid vaccine. Listen to your soul. Innocent

Keanu Reeves may need your help. Join his Telegram channel here.

Enderman
Enderman's picture
Offline
Last seen: 2 weeks 1 day ago
Joined: 11/03/2016 - 22:42
Posts: 4278
Location: Vancouver, Canada

Those ratings are definitely BS.
Even high end sub-C cells for RC are 5000-6000mAh max.

moderator007
moderator007's picture
Offline
Last seen: 2 weeks 3 days ago
Joined: 12/23/2012 - 04:47
Posts: 3740
Location: North Carolina

A few years back when I built a lot of maglites with D cells, about the best D Nimh cell was the Powerex 11000mah from Maha Energy. Not cheap at all.
I guess you have to pay for the extra capacity. Too expensive for me to buy 4 to run in a mag. If your up for it HKJ it be nice see these tested. From what I have read they generally give more than 11000mah at low currents. Can’t find any hard data to back that up though.
http://www.mahaenergy.com/powerex-d-11000mah-2-pack/
.
Thanks for all your testing HKJ, valuable info.