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expiredphoinix | Staff posted Jul 07, 2025 05:06 PM
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expiredphoinix | Staff posted Jul 07, 2025 05:06 PM

2-Pk Eneloop D Size Battery Adapters AA 2100 Cycle Ni-MH Rechargeable Batteries

$5.00

$11

54% off
Amazon
55 Comments 11,189 Views
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Deal Details
Amazon has 2-Pack Eneloop D Size Battery Adapters AA 2100 Cycle Ni- MH Pre-Charged Rechargeable Batteries (K-KJS1MCA2BA) for $4.98. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for sharing this deal.

Product Details:
  • Rechargeable up to 2100x
  • Pre-Charged, Ready to Use
  • Holds 70% of Charge for 10 Years
  • No Memory Effect
  • Can Be Charged When Partially Drained
  • Functional Down to -4°F
  • Two D Spacers

Editor's Notes

Written by citan359 | Staff
  • About this Deal:
    • Our research indicates that this deal is $2.01 less (29% savings) than the next best available price from a reputable merchant with prices starting at $6.99 at the time of this posting.
  • About this Product:
    • Rated 4.6 out of 5 stars at Amazon based on over 1,600 customer reviews.
  • About this Store:
  • Additional Notes:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by phoinix | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon has 2-Pack Eneloop D Size Battery Adapters AA 2100 Cycle Ni- MH Pre-Charged Rechargeable Batteries (K-KJS1MCA2BA) for $4.98. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for sharing this deal.

Product Details:
  • Rechargeable up to 2100x
  • Pre-Charged, Ready to Use
  • Holds 70% of Charge for 10 Years
  • No Memory Effect
  • Can Be Charged When Partially Drained
  • Functional Down to -4°F
  • Two D Spacers

Editor's Notes

Written by citan359 | Staff
  • About this Deal:
    • Our research indicates that this deal is $2.01 less (29% savings) than the next best available price from a reputable merchant with prices starting at $6.99 at the time of this posting.
  • About this Product:
    • Rated 4.6 out of 5 stars at Amazon based on over 1,600 customer reviews.
  • About this Store:
  • Additional Notes:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+46
Good Deal
Visit Amazon

Price Intelligence

Model: Eneloop Panasonic K-KJS1MCA2BA D Size Battery Adapters AA 2100 Cycle Ni- MH Pre-Charged Rechargeable Batteries, 2 "D Adapters with 2 Batteries

Deal History 

Sale Price
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Sort: Lowest to Highest | Last Updated 7/27/2025, 02:24 PM
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Top Comments

BradFang
673 Posts
245 Reputation
These adapters I think are just tubes you put AA in so you can use any charger

54 Comments

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Jul 07, 2025 05:21 PM
1,010 Posts
Joined May 2009
Jul 07, 2025 05:21 PM
FenrirCoJul 07, 2025 05:21 PM
1,010 Posts

Our community has rated this post as helpful. If you agree, why not thank FenrirCo

I would prefer the ones that use 3xAA to D, but I've only seen them as Chinese generics (any 'brand name' ones I've seen so far are just the same thing) but the main reason to get these is if the generic ones don't fit too well in a product or if you want to use an alkaline, which you should not put in parallel because there can be some backcharging happening to make them leak (even though it shouldn't happen). Of course you could just put 1 in the 3x adapters. Mainly these probably fit picky products. I've had a few where the + side doesn't touch. Also had this happen with AAs too. The standard battery sizes do allow for variation so they shouldn't be making high tolerance products.
1
Jul 07, 2025 05:43 PM
886 Posts
Joined Nov 2023
Jul 07, 2025 05:43 PM
Ck2hiJul 07, 2025 05:43 PM
886 Posts
No troll, what devices take size D bats anymore? Seems like a great deal if u have a use but idk if i ever will use
Jul 07, 2025 05:48 PM
292 Posts
Joined Jan 2009
Jul 07, 2025 05:48 PM
4vangerJul 07, 2025 05:48 PM
292 Posts
Quote from Ck2hi :
No troll, what devices take size D bats anymore? Seems like a great deal if u have a use but idk if i ever will use
my chip-reading cat feeder uses 4 of those. But skipping since I would also need to buy a corresponding charger - my only takes AA&AAA
2
Jul 07, 2025 05:49 PM
1,567 Posts
Joined May 2014
Jul 07, 2025 05:49 PM
fiveohmxcoJul 07, 2025 05:49 PM
1,567 Posts
Quote from Ck2hi :
No troll, what devices take size D bats anymore? Seems like a great deal if u have a use but idk if i ever will use
those recent retro energizer flashlights with Stranger Things branding... i started looking for rechargeable D cells last week. dont think i'll go with this though..
Jul 07, 2025 05:51 PM
673 Posts
Joined Jun 2016
Jul 07, 2025 05:51 PM
BradFangJul 07, 2025 05:51 PM
673 Posts

Our community has rated this post as helpful. If you agree, why not thank BradFang

Quote from 4vanger :
my chip-reading cat feeder uses 4 of those. But skipping since I would also need to buy a corresponding charger - my only takes AA&AAA

These adapters I think are just tubes you put AA in so you can use any charger
1
Jul 07, 2025 05:56 PM
864 Posts
Joined May 2015
Jul 07, 2025 05:56 PM
WatsYourDealJul 07, 2025 05:56 PM
864 Posts
Even if you don't care about the D-spacers, Eneloop AA 2100mAh @ less than $2.50 each is the real deal. I searched for deal history and the closest I could find is 10 Eneloop AAs for $26 ($2.60 each), this lets you buy only as much as you want in multiples of 2.
Jul 07, 2025 05:56 PM
18 Posts
Joined May 2021
Jul 07, 2025 05:56 PM
tlardnerJul 07, 2025 05:56 PM
18 Posts
Quote from Ck2hi :
No troll, what devices take size D bats anymore? Seems like a great deal if u have a use but idk if i ever will use

Lots of kids toys.

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Jul 07, 2025 05:57 PM
1,169 Posts
Joined Dec 2012
Jul 07, 2025 05:57 PM
Matthew08Jul 07, 2025 05:57 PM
1,169 Posts
yeah i've got one of those gas transfer pumps it uses Ds, seems like a good use case for this
Jul 07, 2025 06:01 PM
3,186 Posts
Joined Aug 2015
Jul 07, 2025 06:01 PM
Pi.314Jul 07, 2025 06:01 PM
3,186 Posts
Quote from Ck2hi :
No troll, what devices take size D bats anymore? Seems like a great deal if u have a use but idk if i ever will use
led Lantern flashlight from sd deal precovid.
​Low power is 2 D cells, high power is 4 D.
Luckily i had 2 D cell blanks from my costco enerloop value pack.

I just tried it after not touching it for years.
Still bright! EEK!

Now i'm curious how bright HIGH is [img]https://i.slickdeals.net/images/smilies/emot-questioned.gif[/img]
Jul 07, 2025 06:15 PM
921 Posts
Joined Jul 2009
Jul 07, 2025 06:15 PM
yugioh2Jul 07, 2025 06:15 PM
921 Posts
Shows as $6.99 for me.
Jul 07, 2025 06:36 PM
966 Posts
Joined Feb 2008
Jul 07, 2025 06:36 PM
EyetronJul 07, 2025 06:36 PM
966 Posts
Decent price just for the AA's themselves and ignoring the spacers.
Jul 07, 2025 06:43 PM
101 Posts
Joined Nov 2006
Jul 07, 2025 06:43 PM
JohnMcD348Jul 07, 2025 06:43 PM
101 Posts
Does any company actually make a real C or D size rechargeable anymore? My old Radio Shack NiCads are starting to wear out and would prefer the extra power storage of the larger batteries.
Jul 07, 2025 06:46 PM
907 Posts
Joined Aug 2007
Jul 07, 2025 06:46 PM
PrincemanJul 07, 2025 06:46 PM
907 Posts
$4.98 again. Just bought it. Thanks OP!
Pro
Jul 07, 2025 06:56 PM
745 Posts
Joined May 2012
Jul 07, 2025 06:56 PM
luddite_cyborg
Pro
Jul 07, 2025 06:56 PM
745 Posts
Quote from Princeman :
$4.98 again. Just bought it. Thanks OP!
Yeah, marked expired prematurely.
They have a 2-pack for $9.96 but limit is 3 total no matter what you select.
So if you want 8 adapters total you'll need to use 2 accounts.

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Original Poster
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This user is an Expert in Books & Magazines
Jul 07, 2025 06:57 PM
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Jul 07, 2025 06:57 PM
phoinixJul 07, 2025 06:57 PM
Original Poster
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Deal Hunter
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This user is an Expert in Books & Magazines
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Quote from yugioh2 :
Shows as $6.99 for me.
Available again

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