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frontpagef12_26 | Staff posted Apr 20, 2026 05:06 PM
frontpagef12_26 | Staff posted Apr 20, 2026 05:06 PM

4-Pk HW AA USB-C Rechargeable 1.5V 3600mWh Lithium Batteries

$11

$20

45% off
Amazon
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TIGER HEAD HI WATT BATTERY HK CO LTD via Amazon has 4-Pack HW AA USB-C Rechargeable 1.5V 3600mWh Lithium Batteries w/ 4-in-1 Charger Cable on sale for $13.52 - $2.70 when you apply promo code TAKGE7FB at checkout = $10.82. Shipping is free with Prime or on $35+ orders.

Note: Amazon promo codes don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.

Thanks to Staff Member f12_26 for sharing this deal.

Product Details:
  • 3600mWh double a lithium batteries provides longer runtime and more stable power than standard alkaline batteries.
  • Charge 4 AA rechargeable batteries simultaneously in 2 hours via any USB port.
  • Replaces 1000+ disposable batteries.
  • Engineered with a gradual voltage decline from 1.5V. It delivers a longer and more stable total runtime than both alkaline and NiMH batteries.
  • Built-in protections against overcharge, over-discharge, over-voltage, over-current, short circuit, and overheating.

Editor's Notes

Written by johnny_miller | Staff

Original Post

Written by f12_26 | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
TIGER HEAD HI WATT BATTERY HK CO LTD via Amazon has 4-Pack HW AA USB-C Rechargeable 1.5V 3600mWh Lithium Batteries w/ 4-in-1 Charger Cable on sale for $13.52 - $2.70 when you apply promo code TAKGE7FB at checkout = $10.82. Shipping is free with Prime or on $35+ orders.

Note: Amazon promo codes don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.

Thanks to Staff Member f12_26 for sharing this deal.

Product Details:
  • 3600mWh double a lithium batteries provides longer runtime and more stable power than standard alkaline batteries.
  • Charge 4 AA rechargeable batteries simultaneously in 2 hours via any USB port.
  • Replaces 1000+ disposable batteries.
  • Engineered with a gradual voltage decline from 1.5V. It delivers a longer and more stable total runtime than both alkaline and NiMH batteries.
  • Built-in protections against overcharge, over-discharge, over-voltage, over-current, short circuit, and overheating.

Editor's Notes

Written by johnny_miller | Staff

Original Post

Written by f12_26 | Staff

Community Voting

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Top Comments

rczrider
2783 Posts
939 Reputation
The use-case for batteries like this is very specific. The buck converters to drop lithium's natural 3.7V to 1.5V will consume energy while not in use, worse than old school, non-LSD NiMH batteries. That really only makes them useful in high-drain devices in constant use, especially ones that are also voltage-sensitive (like some that read 1.2V NiMH as "dead").

I think these are popular for battery-operated Blink cameras because they meet that criteria (including the voltage sensitivity), though Blink says not to use rechargeables.

Generally speaking, a high-quality NiMH like Eneloop is going to be a more cost-effective purchase. You don't need these in your TV remote.
SplendidString5223
16 Posts
10 Reputation
And now it's $11
darcet
471 Posts
282 Reputation
love these- picked them up in feb for my blink cams which want 1.5V not, 1.3V AA so they always show low battery until I put these in...far more predictable now.

16 Comments

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Pro
Apr 20, 2026 11:24 PM
471 Posts
Joined Oct 2007
darcet
Pro
Apr 20, 2026 11:24 PM
471 Posts
love these- picked them up in feb for my blink cams which want 1.5V not, 1.3V AA so they always show low battery until I put these in...far more predictable now.
Yesterday 12:31 AM
92 Posts
Joined Dec 2012

This comment has been rated as unhelpful by Slickdeals users.

Yesterday 02:31 AM
16 Posts
Joined Dec 2023
SplendidString5223Yesterday 02:31 AM
16 Posts
Quote from jimtran93 :
Not a slick deal. Normal price has been between $13.52 and $14.24.
And now it's $11
1
1
Yesterday 03:05 AM
5,181 Posts
Joined Dec 2009
SDSummerDayYesterday 03:05 AM
5,181 Posts
those are great, i bought it last time and they far better than any eneloop i have
1
Yesterday 02:07 PM
113 Posts
Joined Mar 2016
MagicMitchYesterday 02:07 PM
113 Posts
What's the longevity of these? Could use 10-12 of these around the house, but heard rechargeable batteries go to poop after 6-8 months.

But that was also a year or two ago. Haven't really looked into it since. 😅
Yesterday 03:51 PM
2,783 Posts
Joined Jun 2014
rczriderYesterday 03:51 PM
2,783 Posts

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

The use-case for batteries like this is very specific. The buck converters to drop lithium's natural 3.7V to 1.5V will consume energy while not in use, worse than old school, non-LSD NiMH batteries. That really only makes them useful in high-drain devices in constant use, especially ones that are also voltage-sensitive (like some that read 1.2V NiMH as "dead").

I think these are popular for battery-operated Blink cameras because they meet that criteria (including the voltage sensitivity), though Blink says not to use rechargeables.

Generally speaking, a high-quality NiMH like Eneloop is going to be a more cost-effective purchase. You don't need these in your TV remote.
6
Today 02:27 AM
224 Posts
Joined Jul 2019
EagerCorn513Today 02:27 AM
224 Posts
I have 16 of these and iam less than impressed with the power output versus other lithium aa batteries. I used them for Nerf guns. I like the lithium because they run hot, but there are better brands out there.

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Today 02:39 AM
49 Posts
Joined Jul 2019
sli4Today 02:39 AM
49 Posts
The use of mwh instead of typical mah is kind of misleading.

As another person mentioned further down these are 2500mah equivalents so the 3600 makes it seem better than they are.

Edited: math was wrong and corrected by another user. Thanks for the info.
Last edited by sli4 April 21, 2026 at 08:09 PM.
Today 02:48 AM
7,742 Posts
Joined Nov 2010
MusicSharkToday 02:48 AM
7,742 Posts
Quote from sli4 :
The use of mwh instead of typical mah is kind of misleading. Usually you see AA rechargeable sat about 2700mah for good batteries. The conversion on this from 3600mwh to mah is a 3rd the power at 973mah.

Maybe lithium rechargeable a work better than NiMH at a lowe mah rating?
This is misleading marketing.
Today 02:49 AM
1,036 Posts
Joined Dec 2017
mbaciToday 02:49 AM
1,036 Posts
Quote from rczrider :
The use-case for batteries like this is very specific. The buck converters to drop lithium's natural 3.7V to 1.5V will consume energy while not in use, worse than old school, non-LSD NiMH batteries. That really only makes them useful in high-drain devices in constant use, especially ones that are also voltage-sensitive (like some that read 1.2V NiMH as "dead").I think these are popular for battery-operated Blink cameras because they meet that criteria (including the voltage sensitivity), though Blink says not to use rechargeables.Generally speaking, a high-quality NiMH like Eneloop is going to be a more cost-effective purchase. You don't need these in your TV remote.
I use Blink (used gen1 - 2 AA and gen3 - 3 AA doorbell) and despite a lot of disagreements online, I never had problems with NiMh rechargeables. Eneloops, IKEA and Amazon Basics all work fine, except you don't get real battery low signal (it always shows low warning). I replace and recharge them every other month before they get low and never had any dead batteries. They chew through non rechargeable lithiums anyway and those are as expensive as rechargeables, but single use.

With these, you will not get low battery signal either. They will run at 1.5V until they don't, suddenly going dead in the eyes of Blink.
1
Today 02:59 AM
325 Posts
Joined Sep 2015
BigburitoToday 02:59 AM
325 Posts
Quote from rczrider :
The use-case for batteries like this is very specific. The buck converters to drop lithium's natural 3.7V to 1.5V will consume energy while not in use, worse than old school, non-LSD NiMH batteries. That really only makes them useful in high-drain devices in constant use, especially ones that are also voltage-sensitive (like some that read 1.2V NiMH as "dead").

I think these are popular for battery-operated Blink cameras because they meet that criteria (including the voltage sensitivity), though Blink says not to use rechargeables.

Generally speaking, a high-quality NiMH like Eneloop is going to be a more cost-effective purchase. You don't need these in your TV remote.
i have been using lithium rechargeables along with NiMh for a few months and the lithium cells have far less drain. might be brand specific on the how the voltage reduction is performed.
Today 03:04 AM
325 Posts
Joined Sep 2015
BigburitoToday 03:04 AM
325 Posts
Quote from sli4 :
The use of mwh instead of typical mah is kind of misleading. Usually you see AA rechargeable sat about 2700mah for good batteries. The conversion on this from 3600mwh to mah is a 3rd the power at 973mah.

Maybe lithium rechargeable a work better than NiMH at a lowe mah rating?
not sure what you are talking about. 3600mwh at 1.5v is equivalent to 2400mah. eneloops are at best 2000mah at 1.2v which is 2400mwh. here is the calculator if you are interested: https://convert-formula.com/mwh-mah
Today 03:13 AM
49 Posts
Joined Jul 2019
sli4Today 03:13 AM
49 Posts
Quote from Bigburito :
not sure what you are talking about. 3600mwh at 1.5v is equivalent to 2400mah. eneloops are at best 2000mah at 1.2v which is 2400mwh. here is the calculator if you are interested: https://convert-formula.com/mwh-mah

Appreciate the correction. I didn't realize the calculator I used automatically used a higher voltage. Enerloop pros are 2500 and powerex among other brands have 2700mah
Today 04:08 AM
325 Posts
Joined Sep 2015
BigburitoToday 04:08 AM
325 Posts
Quote from sli4 :

Appreciate the correction. I didn't realize the calculator I used automatically used a higher voltage. Enerloop pros are 2500 and powerex among other brands have 2700mah
important to remember that those are at 1.2v vs 1.5v on these. so the powerex as an example only have 3240 mwh. in the grand scheme of things the difference is negligible as far as how long it can power most devices but if you have a device that is sensitive to voltage (like an xbox controller) where it needs a minimum voltage to work lithium rechargeable will last longer since there is no voltage fall off compared to NiMh.

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Today 10:00 AM
6,928 Posts
Joined Dec 2006
megablankToday 10:00 AM
6,928 Posts
Would be better if they charged faster, the site claims 2 hours when the big advantage should have been very fast charge speeds.

Also high maintenance.
• Recharge within 1 month after depletion.
• For long-term storage, recharge every 6 months.

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