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f12_26 | Staff 17.5K Views
Apr 20, 2026 5:06 PM

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

$11

$20

45% off
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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
3KComments
967Reputation
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.
Go to Comment
SplendidString5223
88Comments
22Reputation
And now it's $11
Go to Comment
darcet
500Comments
282Reputation
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.
Go to Comment

Community Reviews

These USB C lithium AA rechargeables stand out for devices that need a steady 1.5 volt supply, especially Blink cameras and other voltage sensitive gear. The constant voltage can make low battery behavior more predictable and avoid the false low warnings common with NiMH cells. They also get praise for strong output in some high drain uses. The main knocks are misleading capacity claims, slower charging than hoped, and uncertain longevity, with some reports of sudden cutoff and weak USB output. A niche pick for the right device.

Common Questions (4)

  • Yes. They hold a steady 1.5V, which makes Blink low-battery behavior more predictable than 1.2V NiMH cells. In Blink doorbells and cameras, they can avoid the constant low-battery warning seen with NiMH, but they may still drop off suddenly when depleted.

    darcetmbaciBigburito

  • 3600mWh at 1.5V works out to about 2400mAh, so the listing's number can look larger than a typical mAh rating. That puts them in the same general energy range as good NiMH AAs, though the higher voltage can help in voltage-sensitive devices.

    sli4BigburitoBigburito

  • They can work in high-drain devices, but runtime and punch may be less impressive than other lithium AA brands. One use case reported was Quest 3 VR controllers, where they lasted about 5 months and gave roughly 10 minutes of warning at low battery.

    EagerCorn513mcbrewsky

  • No. The USB-C connection is for charging only, and the battery itself does not act as a USB power source.

    harley48

AI-generated summary based on comments from the community. Updated ago

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35 Comments

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Apr 20, 2026 11:24 PM
500 Comments
Joined Oct 2007
darcetApr 20, 2026 11:24 PM
500 Comments
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.
Apr 21, 2026 12:31 AM
92 Comments
Joined Dec 2012

This comment has been rated as unhelpful by Slickdeals users.

Apr 21, 2026 2:31 AM
88 Comments
Joined Dec 2023
SplendidString5223Apr 21, 2026 2:31 AM
88 Comments
Quote from jimtran93 View quoted comment :
Not a slick deal. Normal price has been between $13.52 and $14.24.
And now it's $11
4
2
Apr 21, 2026 3:05 AM
5.3K Comments
Joined Dec 2009
SDSummerDayApr 21, 2026 3:05 AM
5.3K Comments
those are great, i bought it last time and they far better than any eneloop i have
1
Apr 21, 2026 2:07 PM
131 Comments
Joined Mar 2016
MagicMitchApr 21, 2026 2:07 PM
131 Comments
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. 😅
Apr 21, 2026 3:51 PM
3K Comments
Joined Jun 2014
rczriderApr 21, 2026 3:51 PM
3K Comments

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

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.
9
Apr 22, 2026 2:27 AM
240 Comments
Joined Jul 2019
EagerCorn513Apr 22, 2026 2:27 AM
240 Comments
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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Apr 22, 2026 2:39 AM
56 Comments
Joined Jul 2019
sli4Apr 22, 2026 2:39 AM
56 Comments
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.
1
1
Apr 22, 2026 2:48 AM
8.2K Comments
Joined Nov 2010
MusicSharkApr 22, 2026 2:48 AM
8.2K Comments
Quote from sli4 View quoted comment :
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.
Apr 22, 2026 2:49 AM
1.1K Comments
Joined Dec 2017
mbaciApr 22, 2026 2:49 AM
1.1K Comments
Quote from rczrider View quoted comment :
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
Apr 22, 2026 2:59 AM
394 Comments
Joined Sep 2015
BigburitoApr 22, 2026 2:59 AM
394 Comments
Quote from rczrider View quoted comment :
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.
Apr 22, 2026 3:04 AM
394 Comments
Joined Sep 2015
BigburitoApr 22, 2026 3:04 AM
394 Comments
Quote from sli4 View quoted comment :
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
Apr 22, 2026 3:13 AM
56 Comments
Joined Jul 2019
sli4Apr 22, 2026 3:13 AM
56 Comments
Quote from Bigburito View quoted comment :
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
Apr 22, 2026 4:08 AM
394 Comments
Joined Sep 2015
BigburitoApr 22, 2026 4:08 AM
394 Comments
Quote from sli4 View quoted comment :

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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Apr 22, 2026 10:00 AM
7.3K Comments
Joined Dec 2006
megablankApr 22, 2026 10:00 AM
7.3K Comments
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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