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POWEROWL

POWEROWL 8 Bay AA AAA Battery Charger, USB High-Speed Charging, Independent Slot, for Ni-MH Rechargeable Batteries, No Adapter

  • Based on 24,009 reviews
Condition: New
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Availability: 20 left in stock
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Arrives Thursday, Oct 22
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Size: 1 Pack


Features

  • POWEROWL smart charger passed US safety certification comes with chip control, when the battery is fully charged, it will automatically stop charging, and with LED indicator. (NOTE) only compatible with NiMH or NiCD AA and AAA rechargeable batteries.
  • Scientific and reasonable battery charging position design, high quality materials effectively protect the battery from normal charging
  • Charge any number of AA AAA rechargeable batteries to make your charging easier. It is recommended to use a 5V/2A plug.
  • With a USB input interface, you can use a laptop, car charger, mobile phone charger, etc. to charge the battery
  • AA AAA batteries charger uses trickle charge to extend battery life and charge up to 99%. Please read the instruction manual carefully before use.

Description

High Capacity, Long-lasting Power High Capacity Premium Alkaline Battery Charging in pairs is bad for battery lifespan in the long run. This is because even if you start with same brand of recharge batteries, there is always some difference in their capacities. When you charge two unequal cells in a pair, the one with lower capacity ends up being over-charged, which further reduces its capacity over time. So your overall battery capacity will deteriorate much faster. Trickle charged mode will help maximize the capacity of battery to full Output: 250mA/Pcs; Input: DC 5V 2A The smart charge function on chargers checks the charging conditions of the batteries, the temperatures of both the batteries and the charger, etc. This allows the charger to individually charge each battery under the best conditions. Powerowl charger can quickly detect damaged batteries. The red indicator light will flash. The red light flashes for more than 15 seconds, please move the non-rechargeable battery in time Repair damaged batteries within 15 seconds. The flashing red light stops flashing. Powerowl patented technology, only the 2021 version of the charger has this function.

Brand: POWEROWL


Color: Black


Product Dimensions: 3.1"D x 6"W x 1.1"H


Item Weight: 5.6 ounces


Output Voltage: 1.4 volts


Output Voltage: 1.4 volts


Input Voltage: 5 volts


Battery Charge Time: 10 hours


Current Rating: 0.5 A


Amperage: 250 milliamps


Compatible Devices: AA /AAA Battery


Connector Type Used on Cable: USB


Number of Ports: 8


Item Dimensions D x W x H: 3.1"D x 6"W x 1.1"H


Item Weight: 5.6 ounces


Specification Met: certification


Brand: POWEROWL


Mfr Part Number: 5824023546


Number of Items: 1


Manufacturer: Shenzhen Wang Xiong Digital Technology Co., Ltd


Unit Count: 8 Count


Built-In Media: 1*Powerowl smart batteries charger 1*USB charging cable（micro） 1*charger User Manual


Model Number: ZN825E


Warranty Description: Manufacturer warranty for 18 months from date of purchase.


Color: Black


Frequently asked questions

The independent slot feature on the Powerowl 8 Bay Charger allows each battery to be charged separately and independently. This means you do not need to charge all batteries at once or in pairs, you can insert any number of batteries and the device will charge them individually.

No, the Powerowl 8 Bay Charger does not require an adapter. It uses USB high-speed charging technology, so you can simply connect it to any device with a USB port, such as a laptop or power bank, to charge your batteries.

The Powerowl 8 Bay Charger is compatible with Ni-MH and Ni-CD rechargeable batteries. It can charge both AA and AAA sizes.

The high-speed charging feature of the Powerowl 8 Bay Charger allows batteries to be charged faster than conventional chargers. Its USB connection enables faster power delivery to the batteries, reducing the overall charging time.

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.

The POWEROWL 8 Bay AA AAA Battery Charger, as reviewed by multiple users, presents a mix of benefits and drawbacks. Users appreciate its ability to accommodate and independently charge both AA and AAA batteries, noting the convenience and speed of charging. However, it is not without faults; there are issues with incompatibility with certain battery brands, inconsistent performance, and durability concerns.

Pros

  • 🔋 Versatility in charging both AA and AAA batteries
  • 👥 Proactive customer support
  • ✔️ Ability to charge a set or single batteries independently
  • 🧐 Fault detection feature
  • 💵 Affordable

Cons

  • 🏗️ Quality and durability concerns
  • ❌ Incompatibility Issues with certain battery brands
  • 📊 Inconsistent performance
  • 🔊 Noisy operation
  • ⚡ Requires USB power supply

Should I Buy It?

The POWEROWL 8 Bay AA AAA Battery Charger is a worthwhile consideration for those looking for an affordable and versatile battery charger, offering the added convenience of independent charging slots. However, be aware of its noted drawbacks, including quality concerns and inconsistent performance. If these potential issues align with your tolerance for risk, this charger might be a suitable purchase.

    • An excellent charger that works very well
Size: 1 Pack
This charger may be inexpensive but it's actually a really good deal for the price. It provides two charging outputs based on the number of inserted batteries. 1-4 batteries: 500mAh | 5-8: 250mAh If I'm in need of a quicker charge I'll just insert 1-4 and the charging times are half the time of 5-8 batteries. The charging time depends on the capacity of your NiMH batteries. I use 2800mAh AA and 1100mAh AAA EBL high capacity LSD (Low Self Discharge) batteries with this device. I find the output current acceptable and preferable. The higher the current you put into batteries when charging the more damage is done over time and they'll be much hotter during charging - contributing to even more damage. Lower currents, or trickle charging batteries, will allow them to reach their full rated cycle count. While it seems inconvenient to have to wait hours to charge, just remember that it's worth the wait in saved batteries. I'm not sure what the "damaged" battery fix feature does. We don't currently have any "damaged" batteries and the manual states this feature is only for batteries that were deeply discharged beyond the acceptable limits. I guess if this ever happens to us we'll see if that mode actually does anything. This charger heats up a good bit when charging batteries. Keep it on a solid surface to allow the heat to dissipate better. Don't place it on your carpet. Put it on a table or something with good airflow. What I do to compensate for the longer charging times is to have enough batteries on hand that I always have some ready and charged to swap into my devices while I charge the depleted ones. It's common and easy to find LSD (Low Self Discharge) NiMH batteries and I highly recommend people only purchase batteries with low self discharge. For the brand of batteries we use, EBL, we find that the claimed discharge over time is accurate. We use our batteries and swap them often enough that we don't know what that figure would be over very long time frames, but it will vary based on brand and quality. I highly recommend EBL batteries with this charger. They have some of the highest capacities available and a 1,200 cycle count which is above average for their capacity. Well worth the cost and they don't cost much more than cheapo ones. I expect them to last close to the claimed 1,200 cycles, partly thanks to the low charging currents offered by this charger. You can check and measure capacity and charge level with a multi-meter and some electronics knowledge (which I have). Overall this charger is great! Word of caution: don't keep the batteries inserted for long periods of time after they complete charging. A few hours or waiting overnight to take them out isn't a big deal breaker. But don't leave them in their for days or weeks on end. This charger is not designed to handle that and could lead to damage or reduced cycle count. This is also clearly laid out in the manual. My only complaint with this charger is that it heats up quite a bit when charging, especially if charging 8 AA at once. Other than that the smart chip feature appears to be real and works very well. ... show more
Reviewed in the United States on May 24, 2024 by Kourtney Ragland
    • Easy to Use and Charges Multiple Batteries at Once
Size: 1 Pack
Review Image by V
This charger is simple to use and works as expected. I really like having 8 charging slots because I can charge several AA or AAA batteries at the same time instead of swapping them out constantly. The individual charging slots are convenient, and the USB connection makes it easy to set up wherever I need it. It’s compact, doesn’t take up much space, and has been reliable so far. Great option if you use a lot of rechargeable batteries around the house. ... show more
Reviewed in the United States on September 2, 2026 by V
    • Worth the buy
Size: 1 Pack
Works very well! The charging speed is really fast as well.
Reviewed in the United States on September 27, 2026 by Chloe
    • Only rechargeable batteries work for this!
Size: 1 Pack
Works good, exactly how it was intended. For what it's worth, it does charge batteries! Rechargeable ones, however. That's the most important part of it that I didn't make sure of. Not just any battery works on this charger. This little thing is pretty good. I'll see if I can find some batteries that work with it. ... show more
Reviewed in the United States on August 30, 2026 by Pazer
    • Perfect customer service.
Size: 1 Pack
I bought this item and used it continuously for over two years. There were always batteries charging in it. I use AA and AAA batteries a lot. I was quite happy with it. I recently discovered it was no longer charging my batteries, and although I knew it was out of warranty I emailed the company. They responded promptly asking for the verification of my Amazon purchase and photos of the item. I provided those and they have cheerfully sent me a replacement. A quality product and a quality company behind it! ... show more
Reviewed in the United States on September 15, 2026 by N. Coppola
    • Unbeatable
Size: 1 Pack
Quality and reliability amazed me
Reviewed in the United States on September 21, 2026 by Jesus Quinones
    • Powerowl charger
Size: 1 Pack
Seems to work very well. I like that batteries don't have to be charged in pairs.
Reviewed in the United States on October 13, 2026 by Amazon Customer
    • Unsure of performance with multiple brands of batteries, possibly defective unit
Size: 1 Pack
While this battery charger is nice to have to be able to recharge more than a few batteries at a time, I am not certain that it is not damaging some batteries or charging them oddly. It may not be the charger's fault at all, or it could be. I bought this charger in 2019. I had some Energizer rechargeable batteries that were brand new at that time, and I did not buy the Energizer brand charger to recharge them. I previously had Energizer rechargeable batteries and a couple of Energizer brand chargers, and the batteries lasted a very long time (7 or more years in daily use) and hundreds of recharges with those chargers. This charger is constantly telling me that batteries are bad or going bad. I don't think it's the devices the batteries are being used in. I also had some older Energizer rechargeable batteries (able to differentiate between new ones because of slight design change on battery branding), a few older Rayovac rechargeable batteries and a couple of older Duracell rechargeable batteries initially, and all of these have eventually indicated that they were no longer any good with this charger after a few uses. Some of the rechargeable batteries were old, so that could explain it in those cases, but many of the Energizer rechargeable batteries were brand new. They didn't get anything close to the number of recharge cycles they were supposed to have after I used this charger. Out of approximately 24 batteries, only about 4 to 6 now work properly. That is totally different performance than the Energizer rechargeable batteries I had before that I recharged on an Energizer brand charger. I also bought some Powerowl brand batteries in December 2023. I recharged them using this charger. I labeled them with the year and a designator to tell the batteries apart, so I know I haven't used the same ones every single time. Plus, I haven't recharged any of them every single day, so there's no way any of them are approaching 400 or 500 recharge cycles. I'd be surprised if any had been recharged even 100 times. Probably about 4 to 5 of the batteries now indicate that they are not working properly and do not hold a charge or recharge. They are not being used in extreme conditions. I don't know for sure if it is due to a malfunction with this charger, but I am using different rechargeable battery brands and different chargers for those batteries now. In the case of batteries that I had already used this charger to recharge, I will continue to recharge in this charger, especially the Powerowl branded batteries. I am disappointed by the performance of one or both of the Powerowl products. It could possibly be a malfunction only with this particular charger unit that could only be known after use, but even off-brand rechargeable batteries are more expensive up front than regular batteries, and it is less eco-friendly and less frugal if the rechargeable batteries function less than 100 times before ceasing to work properly. I don't know how much the Powerowl batteries can then be recycled, but I hope they are not ending up in a landfill. Personally, if you bought this charger unit with Powerowl branded batteries on a good deal, I think that could be saving a bit of money and a little bit of the environment versus buying regular single-use batteries, but I would be hesitant to put any other brand of rechargeable batteries in this charger. It is frustrating that few brand name chargers charge more than 4 batteries at once in one charger, and many of them don't charge odd numbers of batteries or single batteries. However, some name brands do make chargers that do so for up to 4 batteries, and the name brand rechargeable batteries seem to last longer when using their same charger brand, though they are generally more expensive than the off brands. If you can get the name brand rechargeable batteries with the name brand charger on sale, ultimately you might be saving money. ... show more
Reviewed in the United States on November 28, 2024 by AllergyAwareMom

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