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Hisunytec

4100mWh AA Rechargeable Lithium Batteries 4-Pack for Game

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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Sep 22
Order within 16 hours and 35 minutes
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Color: Blue


Size: 4 PACK without Charger


Features

  • 1.5V Constant Power & 4100mWh High Capacity AA battery: Experience unwavering performance with our 4100mWh high-energy AA lithium batteries. Unlike traditional batteries that drop voltage as they drain, our cells maintain a steady 1.5V output until the very end, ensuring your smart locks and high-drain flashlights operate at peak power without dimming or lagging
  • 100% Leak-Proof Stainless Steel Construction double a : Crafted from premium 304 stainless steel, these AA Rechargeable Lithium batteries offer superior corrosion resistance and structural integrity. The rugged metal shell prevents swelling and leakage even in extreme humid or high-temperature environments, protecting your expensive electronics like DSLR cameras and smart home devices from acid damage
  • Fast USB-C Charging with LED Indicator: No bulky charger needed! Each battery features a built-in Type-C port for direct charging via power banks or laptops. The intuitive Dual-Color LED (Flashing Green: Charging; Solid Green: Full; Red: Error) provides real-time status. Fully fueled in just 2-2.5 hours to keep your workflow uninterrupted AA Rechargeable Batteries
  • Universal Compatibility for High-Drain Gear: Designed for high-performance reliability in Smart Door Locks (Yale, August, Schlage), Gaming Controllers (Xbox), Wireless Keyboards, Toys, and Blink Cameras. Includes 4x AA Batteries and a 4-in-1 USB-C Charging Cable ready to power your entire smart ecosystem out of the box
  • Universal Compatibility for High-Drain Gear: Designed for high-performance reliability in Smart Door Locks (Yale, August, Schlage), Gaming Controllers (Xbox), Wireless Keyboards, Toys, and Blink Cameras. Includes 4x AA Batteries Rechargeable Lithium and a 4-in-1 USB-C Charging Cableready to power your entire smart ecosystem out of the box

Description

Hisunytec`High Capacity AA Lithium Rechargeable Batteries 4100mWh 1.5V Constant Power, 2500 Cycles USB-C Charging Double A for High-Drain Devices Smart Home, Wireless Keyboard Unlike Ni-MH batteries that drop voltage and cause device lag, our lithium AA batteries maintain a steady 1.5V output from 100% to 0%. With a true 4100mWh high energy density, they provide up to 40% longer runtime for high-drain devices like smart locks, digital cameras, and power-hungry toys Hisunytec 4100mWh AA Rechargeable Battery Lithium, 1.5V Constant Output with USB-C Charging Port, 2500+ Cycles Double A Li-ion Cell for Xbox Controller, Door Lock, Flashlight (Cable Included) Stop wasting money on single-use alkalines. One set of our 2500+ cycle rechargeable batteries replaces over 5,000 disposables. Featuring zero memory effect, you can recharge anytime regardless of the remaining capacity Revolutionary USB-C Direct Charging Ditch the bulky chargers! Each battery features an integrated USB-C port. Use the included 4-in-1 cable to juice up from any USB power source (laptop, car, or wall adapter). The smart LED indicator (Flashing Green: Charging; Solid Green: Ready) ensures you are always informed. Fully charged in just 2-2.5 hours Equipped with an intelligent BMS (Battery Management System), our batteries provide 24/7 monitoring against overcharge, over-discharge, over-voltage, and short circuits. The precision-engineered 304 stainless steel shell ensures 100% leak-proof safety, protecting your high-end electronics from corrosion Engineered for ultimate compatibility with Smart Door Locks(August, Yale, Schlage), Blink Cameras, XBOX / NVIDIA Controllers, and Wireless Keyboards. This all-in-one kit provides reliable, consistent power for your entire smart ecosystem right out of the box 4100mWh USB-C Rechargeable AA Lithium Batteries. 1.5V Constant Output. 2500+ Cycles. Powering your smart home, gaming, and daily life. • 1.5V constant output (full to empty) • Smart low-battery alarm for smart locks • 4100mWh ultra-high capacity • Built-in USB-C direct charging port We've all been there: locked out by a dead smart door lock, losing a game mid-battle, or missing security footage. Hisunytec was built to solve these exact frustrations with reliable, convenient power. Pre-charged to 80% capacity right out of the box. Perfect for Xbox, PS5 controllers, and all high-drain devices. Game longer, charge less. From smart door locks and Blink security cameras to wireless keyboards, flashlights, and kids' toys. One battery solution for all your daily needs. 1 battery replaces 2500 disposable batteries. Mercury-free, cadmium-free, and built to last. Save money and reduce environmental waste.

Number of Batteries: 4 AA batteries required. (included)


Brand: Hisunytec


Battery Cell Composition: Lithium Ion


Battery Capacity: 2900 milliamp_hours


Recommended Uses For Product: Camera, Flashlight, Smart Door Locks, Game Controllers, Wireless Mouse, Wireless Keyboard, Toys, Blink Cameras, DSLR Cameras, Smart Home Devices, Flashlights, automatic door lock, calculator See more


Number of Batteries: 4 AA batteries required. (included)


Brand: Hisunytec


Model Number: USB AA


Model Name: USB AA


UPC: 607615407455


Manufacturer: Hisunytec


Warranty Description: 1 Year


Battery Capacity: 2900 milliamp_hours


Voltage: 1.5 volts


Reusability: Rechargeable


Unit Count: 4 Count


Battery Weight: 124 g


Item Dimensions: 3.15 x 2.8 x 0.91 inches


Antenna Location: Camera, Flashlight, Smart Door Locks, Game Controllers, Wireless Mouse, Wireless Keyboard, Toys, Blink Cameras, DSLR Cameras, Smart Home Devices, Flashlights, automatic door lock, calculator


Battery Cell Type: Lithium Ion


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great for toys!
Color: Blue Size: 4 PACK without Charger
These rechargeable AA batteries have been a great investment, especially with a toddler in the house. Toys always seem to get left on, so I was constantly replacing disposable batteries. These have saved me both money and the hassle of always keeping extras on hand. I love how easy they are to recharge with the included USB-C charging cable. Charging is straightforward, and it’s nice being able to plug them in instead of running out to buy new batteries. They’ve provided consistent power in my son’s toys, and I haven’t noticed any drop in performance compared to regular alkaline batteries. The fact that they’re rechargeable makes them a much more practical option for devices that get frequent use. Overall, these are reliable, convenient, and perfect for families with battery-hungry toys. If you’re tired of constantly replacing AA batteries, these are definitely worth picking up. ... show more
Reviewed in the United States on July 30, 2026 by Jes Arciga
    • Decent batteries but a bit pricey.
Color: Blue Size: 4 PACK without Charger
Review Image by Amazon Reviewer
These have worked great for me so far. These seem well built and have plenty of capacity for any task. So far I haven't noticed any problems with heat and 4 of them have been powering my flashlight designed for disposable batteries for over an hour without any issue. I don't want to kill these batteries entirely so I'm not going to push them too hard, but they've stood up pretty well to my testing. These batteries are made in China if that matters, I took pictures of the wrap on the batteries. The colorful design is a bit wacky for my taste, even though what a battery looks like doesn't generally matter that much. These seem to be holding up to their 1.5v claim, 4100mwh seems a bit ambitious but they've held up just as good as any high capacity batteries I've used so far. The price point they're listed at is a bit expensive and the main reason I'm taking a star off. You can get similar batteries in 8 packs with a charger for the same price or less on amazon. I'm really not a fan of the individual charging ports on these, it's much simpler to use a drop in charger. Thankfully these do charge via a drop in charger as well as using the USB plug. There's nothing about these batteries that makes them worth more than any other AAA Li Ion batteries in my opinion. If they go on sale they're absolutely worth it, but at the current rate not so much. ... show more
Reviewed in the United States on June 15, 2026 by Amazon Reviewer
    • A great alternative to AA alkaline cells, especially for demanding applications
Color: Blue Size: 4 PACK without Charger
Review Image by HUA
This is a neat concept. AA batteries that each have a USB-C charging port and an internal lithium-ion battery with an integrated BMS (Battery Management System). The first thing I looked for when I saw the product headline was if it had a proper Battery Management System integrated into each cell and it does. This is really important because a cheap execution of a product like this can result in a fire. This has an advertised lifetime of 2,500 cycles which is a bit surprising because most lithium cells are usually less than that but even if they don't last that many cycles it's still a far superior solution than traditional AA alkaline batteries. The set of four cells arrives in a thin plastic case with a single octopus cable that is USB-A one one end to four of the USB-C connectors. When charging, each cell will blink on and off from a green LED on the positive end of the cell. When charging is complete the LED will remain steady green. Each cell is made of stainless steel and is supposedly resistant to leakage which is good to hear. These also have the added feature of sounding an audible alarm when charging is needed. These are especially suited for high current devices. Pricing is pretty good for knowing that they will take the place of a large number of traditional AA cells. Recommended. ... show more
Reviewed in the United States on June 3, 2026 by HUA
    • Love the convenience of these!
Color: Blue Size: 4 PACK without Charger
Review Image by Andrew
Review Image by Andrew
These rechargeable AA batteries are the first kind I have used that have a usb-c port built right into the battery itself. I personally love this way of charging them as most people have a ton of usb-c cables lying around everywhere now since most electronics use that in 2026. The convenience of plugging these in versus keeping track of a bulky charging block is a big improvement for me. The included cable also makes it even easier by having 4 usb-c male ends to one usb-a male end so you can charge all 4 batteries at once with one usb port! They have performed as I have expected - nothing out of the ordinary. They have powered my remotes in my office and I don't expect to have to recharge them for a while, but if they die way earlier than I expect, I can update the review. As for now though, they are more than capable AA batteries at a good price! ... show more
Reviewed in the United States on June 18, 2026 by Andrew
    • good value
Color: Blue Size: 4 PACK without Charger
Just got these batteries and everything worked right out of the box. I like that they charge directly with USB-C, so I don't need a separate charger cluttering up my desk. The included 4-in-1 cable is a nice bonus and makes charging all four batteries at once really convenient. They fit properly in my wireless mouse and game controller, and both powered on without any issues. The batteries seem well made and hold a charge so far, but I haven't used them long enough to comment on the actual capacity or long-term battery life yet. For the price, this looks like a good value. Taking off one star only because it's too early to know how they'll perform over time, but my first impression is very positive. ... show more
Reviewed in the United States on June 13, 2026 by Amazon reviewer
    • Decent lithium rechargeable batteries, high capacity, odd storage case
Color: Blue Size: 4 PACK without Charger
Review Image by Computer
Review Image by Computer
The Hisunytec 4100mWh AA rechargeable batteries have been very useful for everyday devices around my house, especially kids' toys, tools, wireless accessories, and other electronics that go through batteries quickly. The effectiveness/performance has been good so far, and they seem to last longer than standard disposable AAs in higher-drain devices. My main complaint is the included storage case. The batteries do not stay secured very well, and the included USB charging cable does not fit in the case alongside the batteries. It is not a major issue for me since I store batteries separately anyway, but the case design could be better. The quality of the batteries themselves seems good, and I like the built-in USB-C charging feature. Being able to charge them directly with the included cable or in a normal AA battery charger makes the usability/ease of use better than some rechargeable battery systems. At around $24 for the four-pack, the value feels fair compared to similar rechargeable lithium-ion batteries. I think these are a good option for frequently used household electronics if you want longer runtime and the convenience of USB-C charging. ... show more
Reviewed in the United States on June 15, 2026 by Computer
    • USB C Charging is a gamechanger
Color: Blue Size: 4 PACK without Charger
These AA rechargeable batteries have been incredibly convenient to use, especially with their built-in USB-C charging ports. The fact that I don't need a separate, bulky charger is a huge plus; I can simply plug them into any USB-C cable, which means I can top them off pretty much anywhere I have access to a power bank or laptop. I've tried them in a few different devices, and they've been compatible with everything, currently doing duty in my smart door lock where consistent power is really important. So far, their performance has been reliable, holding a charge for about as long as other quality rechargeable batteries I've used in the past. It's just so much easier to manage these compared to traditional rechargeables that require a dedicated charging cradle, making them a really practical choice for everyday electronics. ... show more
Reviewed in the United States on June 19, 2026 by Amazon Customer
    • Clever Rechargeables
Color: Blue Size: 4 PACK without Charger
They work. Good quality, & a clever idea overall. The standout feature is that each battery has a USB-C port built right into it, so you don't need a separate dedicated charger. I have a million USB-C cables floating around the house, which means I can throw these on to charge from a laptop, phone block, or car charger any time, anywhere. The little LED indicator is helpful for knowing when they're full -- flashes green while charging, solid green when ready -- so there's no guessing. The included 4-in-1 cable is a nice touch for charging multiple batteries at once. The charge appears to hold a good long time. I've had a set in my son's talking toy for a while now & they're still going strong with no noticeable drop in performance. Great value with the coupon, & a smart pick for anyone tired of buying disposable AAs or fishing around for a battery charger. 5 stars. ... show more
Reviewed in the United States on June 7, 2026 by Elly

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