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Ostation 1.5V AA Rechargeable Lithium Batteries 2100mAh 4 Pack 3150mWh

  • Based on 120 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Oct 6
Order within 13 hours and 16 minutes
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Size: AA Li-ion 4 Pack


Features

  • CES Award-Winning Smart Charging: The worlds first AA rechargeable battery with built-in BMS. A smart chip inside communicates with Ostation 2 series chargers to dynamically regulate current and temperature, delivering safer, more efficient Li-ion charging (Note: BMS means Battery Management System. Chargers sold separately.)
  • Advanced Protection, Inside & Out: 5 layers of protection guard against overheating, overcurrent, overcharge, over-discharge, and short circuits. Dual-layer encapsulation resists everyday drops, while gold-plated copper positive contacts reduce resistance to prevent overheating and power loss. Multiple Ostation 1.5V Li-ion batteries deliver stable performance, even when used together in the same device
  • Batteries Ready Faster, Lasts Longer: Rechargeable with any 1.5V Li-ion battery charger. When used with Ostation 2 Series chargers, these batteries fully charge in just 2.5 hoursfaster than most other Li-ion batteries on other chargers. Each battery supports 1,000+ recharge cycles, saving money and reducing waste
  • Longer Runtime for High-Drain Devices: With 3150mWh (2100mAh) capacity, these lithium batteries deliver extended power for demanding devices like camera flashes, gaming controllers, flashlights, and microphones, reducing the hassle of frequent battery swaps
  • Constant 1.5V Output: Unlike 1.2V NiMH batteries, these lithium AA batteries maintain a steady 1.5V output, keeping voltage-sensitive devices such as security cameras and doorbell cameras running at peak performancean ideal replacement for disposables
  • Reliable Power in Extreme Temperatures: These Li-ion batteries operate reliably from -4F to 140F (-20C to 60C), perfect for outdoor devices including security cameras, trail cameras, GPS units, and other equipment exposed to harsh conditions.

Description

In high-mode flashlight testing, alkaline and Ni-MH batteries gradually lose brightness. Ostation 1.5V Li-ion maintains a stable 1.5V output throughout the test, delivering reliable, consistent performance when it matters most. Under identical lab conditions, Ostation 1.5V Li-ion delivers 489 full-power flash shots, outperforming Ni-MH (421) and alkaline (408). That means more shots per charge, fewer interruptions, and longer-lasting power for high-drain devices. Ostation 2 Pro Pack Ostation 2 Pack Ostation 2 Pro Ostation 2 Ostation AAA Battery Ostation AA Battery(4pcs) Ostation AA Battery(8pcs) Ostation is an independent charging brand under the Olight Group, which has been trusted by millions since 2007 for high-performance illumination tools. Inheriting Olight’s spirit of innovation, it pushes the boundaries of household battery management. By combining smart engineering, intuitive systems, and user-centric design, Ostation makes charging effortless and batteries smarter, with a vision to make sustainable energy an everyday choice.

Number of Batteries: 1 AA batteries required. (included)


Brand: Ostation


Battery Cell Composition: Lithium Ion


Battery Capacity: 2100 milliamp_hours


Recommended Uses For Product: Indoor/Outdoor


Number of Batteries: 1 AA batteries required. (included)


Brand: Ostation


Model Number: Ecolast 3150mWh Li-ion AA 4 pcs/pack


Model Name: Ecolast 3150mWh Li-ion AA 4 pcs/pack


Manufacturer: Ostation


Battery Capacity: 2100 milliamp_hours


Voltage: 1.5 volts


Reusability: Rechargeable


Unit Count: 4 Count


Battery Weight: 40 g


Antenna Location: Indoor/Outdoor


Battery Cell Type: Lithium Ion


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 6

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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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Excellent charge
Size: AA Li-ion 8 Pack
These are very good batteries that work great with their charger. They don’t leak and are a good value for the money.
Reviewed in the United States on August 25, 2026 by Ironman

  • Excellent rechargeable battery!
Size: AA Li-ion 4 Pack
We have been very impressed with these batteries. Obviously you need a special charger to charge them and they don't generally work very well with the battery monitoring capabilities of most devices. Generally, the battery level only shows as about 50% of a normal alkaline battery, but the lifespan is about what you would expect from any normal battery. The only caveat is that when these batteries die they die immediately with no warning whatsoever. So you need to fit that into your process. All in all, you will save significantly on the cost of a battery replacement with these units. ... show more
Reviewed in the United States on August 25, 2026 by M.Buechler

  • Works
Size: AA Li-ion 8 Pack
Charges with olight charging station. It's slightly bigger than regular AA. It will not fit well if whatever your placing them in has tight space. Like airthings wave gen 1, 2. I think it's a little short and little fat. I am talking <.1mm. So far working for few weeks and battery is still showing full. Might be good to buy from known company then random overnight AA lithium companies. If they last more than 500 charges then worth the money. It's AA, so can used in any AA device. Better than NiMH as voltage is steady at 1.2V vs 1.5 of this battery. ... show more
Reviewed in the United States on May 7, 2026 by Jp

  • Good quality
Size: AA Li-ion 8 Pack
These hold a charge well and perform like more expensive batteries
Reviewed in the United States on August 24, 2026 by PC

  • Work well
Size: AA Li-ion 8 Pack
Great sale price. These work great in many different devices. They last long and I recharge them in my Ostation. They are compatible in all my devices.
Reviewed in the United States on August 4, 2026 by M

  • If something is wrong you might not get help.
Size: AA Li-ion 8 Pack
Even though these batteries are some of the best I ever had! One of the batteries was dead on arrival. And trying to get it replaced is like asking corrupt politician to be a little less corrupt. Even before the purchase I had a long speech text with the manufacturer. Which reassured me no matter where I purchase from we will warranty it out. And I feel like it might have been a lie…… ... show more
Reviewed in the United States on July 10, 2026 by Drew Scott

  • Quality
Size: AA Li-ion 8 Pack
Quality batteries that work perfectly with the Ostation 2
Reviewed in the United States on August 28, 2026 by Mike McC

  • Battery bad out of the box
Size: AA Li-ion 4 Pack
I have an ostation charger that I've been using with NiMH batteries for a while, no issues. As soon as these Lithium batteries arrived I dropped them in the charger and one of them was immediately put in the "bad batteries" bin. I tried charging it again and it was promptly rejected a second time. Their "support website" is just a mostly blank page which asks you to give them your email. After doing so, nothing happens. ... show more
Reviewed in the United States on September 20, 2026 by Myriadic

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