Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Heads up, this deal has expired. Want to create a deal alert for this item?
expiredSilencedDuality posted Yesterday 11:31 AM
expiredSilencedDuality posted Yesterday 11:31 AM

SINCEHOLY Rechargeable AA Batteries Lithium with Charger, 12 Pack 1.5V 3600mWh Double A Batteries Rechargeable, Long Lasting Lithium ion AA Batteries $19.99

$20

$40

50% off
Amazon
17 Comments 2,436 Views
Visit Amazon
Good Deal
Save
Share
Deal Details
Amazon Labor Day Sale is listing SINCEHOLY Lithium Ion Rechargeable AA 12-pack with two-slot charger for $19.99.

https://www.amazon.com/SINCEHOLY-...YJ81L&th=1
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon Labor Day Sale is listing SINCEHOLY Lithium Ion Rechargeable AA 12-pack with two-slot charger for $19.99.

https://www.amazon.com/SINCEHOLY-...YJ81L&th=1

Community Voting

Deal Score
+5
Good Deal
Visit Amazon

Leave a Comment

Unregistered (You)

17 Comments

Sign up for a Slickdeals account to remove this ad.

Yesterday 12:20 PM
2,907 Posts
Joined Nov 2014
ValueRangerYesterday 12:20 PM
2,907 Posts

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

Sad to see the the mwh instead of mah. It makes the deal look more deceitful.
4
1
Yesterday 12:27 PM
378 Posts
Joined Mar 2016
harley48Yesterday 12:27 PM
378 Posts
Got these with a different charger a few weeks ago also on sale. Surprised me how decent they were compared to many other brands. They successfully handled all the way up to 2.5A. Many struggle at 2.0A.
This charger is different, only 2 bays. The 4-bay one I got seems simple, light, well ventilated and works. They don't have to be fancy. It is feeding 5v via USB to the battery. All charging control is IN the battery.

mAh/[email protected]
1755/2627 -88%
1722/2589 -86%
1770/2643 -86%
1752/2640 -88%
1777/2646 -89%
1805/2721 -90%
1781/2664 -89%
1768/2630 -88%
Last edited by harley48 August 29, 2025 at 05:32 AM.
1
Yesterday 12:36 PM
319 Posts
Joined Mar 2016
thenarginsYesterday 12:36 PM
319 Posts
"Since-Holy" !!!
Must be trustworthy
Yesterday 12:45 PM
2,907 Posts
Joined Nov 2014
ValueRangerYesterday 12:45 PM
2,907 Posts
Quote from harley48 :
Got these with a different charger a few weeks ago also on sale. Surprised me how decent they were compared to many other brands. They successfully handled all the way up to 2.5A. Many struggle at 2.0A.
This charger is different, only 2 bays. The 4-bay one I got seems simple, light, well ventilated and works. They don't have to be fancy. It is feeding 5v via USB to the battery. All charging control is IN the battery.

mAh/[email protected]
1755/2627 -88%
1722/2589 -86%
1770/2643 -86%
1752/2640 -88%
1777/2646 -89%
1805/2721 -90%
1781/2664 -89%
1768/2630 -88%
Any idea if the competition range has started to include how many cycles, to how much remaining percent usage, similar to LFP batteries? Obviously longevity is a root factor in the value equation with batteries.
Yesterday 01:33 PM
378 Posts
Joined Mar 2016
harley48Yesterday 01:33 PM
378 Posts
Quote from ValueRanger :
Any idea if the competition range has started to include how many cycles, to how much remaining percent usage, similar to LFP batteries? Obviously longevity is a root factor in the value equation with batteries.
Naw. Takes too long.
I did see a review that the 1 year self discharge was done. All over the map, but most did not do too well. Xtar was outstanding in both capacity and self discharge, but they are quite expensive.
They can't even get capacity right most of the time. Assuming they 'might' got 1000+ cycles you'd spend almost 3 years cycling them daily to find out.
The reality is that most batteries die at the hands of their (ab)users most of the time. That includes me, and I consider myself knowledgeable and careful.
Preferably lithium should be kept in the 20%-80% charge range. There is absolutely no effective way to even know what charge state these batteries are in except full and empty.
1
Yesterday 01:54 PM
2,907 Posts
Joined Nov 2014
ValueRangerYesterday 01:54 PM
2,907 Posts
Quote from harley48 :
Naw. Takes too long.
I did see a review that the 1 year self discharge was done. All over the map, but most did not do too well. Xtar was outstanding in both capacity and self discharge, but they are quite expensive.
They can't even get capacity right most of the time. Assuming they 'might' got 1000+ cycles you'd spend almost 3 years cycling them daily to find out.
The reality is that most batteries die at the hands of their (ab)users most of the time. That includes me, and I consider myself knowledgeable and careful.
Preferably lithium should be kept in the 20%-80% charge range. There is absolutely no effective way to even know what charge state these batteries are in except full and empty.
Yeah 'first position' factors like the manufacturing tolerances of the batteries, can be usurped by 'secondary' factors like chargers - and even if the batteries or chargers are eventual knockoffs, usually predicated on how long/far they're marketed.

I used to deal with tv panel knockoffs when larger manufacturers, like Samsung, sold rights to other countries to produce them more locally. The math can get really complex; so you you can imagine when you'd have to deal with at the smaller scale of small batteries, and increasingly inferior lithium-ion tech... AND the manufacturer/end-user variables...
Yesterday 03:08 PM
257 Posts
Joined Jun 2013
haysouseYesterday 03:08 PM
257 Posts
Quote from ValueRanger :
Sad to see the the mwh instead of mah. It makes the deal look more deceitful.
mWh is energy and the more meaningful unit. mAh is incomplete information

Sign up for a Slickdeals account to remove this ad.

Yesterday 03:28 PM
2,907 Posts
Joined Nov 2014
ValueRangerYesterday 03:28 PM
2,907 Posts
Quote from haysouse :
mWh is energy and the more meaningful unit. mAh is incomplete information
So 1% of market dictates 99%?.. oligarch much?
2
Yesterday 03:35 PM
257 Posts
Joined Jun 2013
haysouseYesterday 03:35 PM
257 Posts
Quote from ValueRanger :
Quote from haysouse [IMG]https://slickdeals.net/images/misc/backlink.gif[/IMG] :
mWh is energy and the more meaningful unit. mAh is incomplete information
So 1% of market dictates 99%?.. oligarch much?
no idea what u mean but u sound uneducated and proud of it
1
Yesterday 03:40 PM
2,907 Posts
Joined Nov 2014
ValueRangerYesterday 03:40 PM
2,907 Posts
Quote from haysouse :
no idea what u mean but u sound uneducated and proud of it
Yes; 99% of this market reports in mwh, not mah.

Perhaps coloring by numbers suits you best.
Yesterday 06:18 PM
6,365 Posts
Joined Feb 2008
RyanLYesterday 06:18 PM
6,365 Posts
So what's a good use case for these, Xbox controllers or are they better for super low current applications like remote controls? An electric door lock might be a good one (alkalines usually last me about a year).
Yesterday 07:21 PM
1,839 Posts
Joined Sep 2007
ECartmanYesterday 07:21 PM
1,839 Posts
Quote from RyanL :
So what's a good use case for these, Xbox controllers or are they better for super low current applications like remote controls? An electric door lock might be a good one (alkalines usually last me about a year).
Blink XT cameras and Blink doorbells require these. They wont run much at all on 1.2V akalines.
Yesterday 07:38 PM
1,202 Posts
Joined Dec 2008
madcow3417Yesterday 07:38 PM
1,202 Posts
Quote from harley48 :
Got these with a different charger a few weeks ago also on sale. Surprised me how decent they were compared to many other brands. They successfully handled all the way up to 2.5A. Many struggle at 2.0A.
This charger is different, only 2 bays. The 4-bay one I got seems simple, light, well ventilated and works. They don't have to be fancy. It is feeding 5v via USB to the battery. All charging control is IN the battery.

mAh/[email protected]
1755/2627 -88%
1722/2589 -86%
1770/2643 -86%
1752/2640 -88%
1777/2646 -89%
1805/2721 -90%
1781/2664 -89%
1768/2630 -88%
What are these percentages? I originally assumed it's the capacity relative to advertised, but stated capacity is 3600mWh and these values are closer to 70% of that, not 90%.

Also, thanks for using mWh, mAh makes it difficult to compare different battery chemistries.
Yesterday 10:36 PM
92 Posts
Joined Sep 2015
BeiPYesterday 10:36 PM
92 Posts
Currently unavailable.
We don't know when or if this item will be back in stock.

Sign up for a Slickdeals account to remove this ad.

Yesterday 10:38 PM
109 Posts
Joined Oct 2007
sscamaroYesterday 10:38 PM
109 Posts
OOS....12Pcs 3600mWh with Charger

Leave a Comment

Unregistered (You)

Popular Deals

View All

Trending Deals

View All