SKU: 97168574375

HKM-135507 Universal Battery Charger for 18650 and Other Rechargeable Batteries - 5V USB Input, Adjustable Charging Current

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Description

HKM-135507 Universal Battery Charger for 18650 and Other Rechargeable Batteries - 5V USB Input, Adjustable Charging CurrentIntroducing the HKM 135507 Universal Battery Charger, your reliable solution for keeping a variety of rechargeable batteries powered and ready to go. Whether you're using 18650, 26650, or even AA and AAA batteries, this charger is designed to accommodate multiple battery types, providing versatility for all your charging needs. Featuring a USB input of 5V, the HKM 135507 allows for easy connectivity and has an adjustable charging current option of

Introducing the HKM-135507 Universal Battery Charger, your reliable solution for keeping a variety of rechargeable batteries powered and ready to go. Whether you're using 18650, 26650, or even AA and AAA batteries, this charger is designed to accommodate multiple battery types, providing versatility for all your charging needs.

Featuring a USB input of 5V, the HKM-135507 allows for easy connectivity and has an adjustable charging current option of either 500mA or 1000mA. This flexibility ensures you can charge your batteries efficiently while adapting to different battery specifications. The intelligent voltage monitoring termination method guarantees that your batteries are charged safely and accurately.

The charger supports a wide range of batteries:
- Lithium batteries: 3.7V, 3.8V, 3.2V
- NiMH batteries: 1.2V (AAA, AA, A, SC, S)

User-friendly features include a button for selecting the charging type and a clear LED indicator that displays battery levels (25%, 50%, 75%, 100%). This ensures you can easily monitor the charging process.

Instructions for use are straightforward: simply insert the battery in the correct orientation, connect to power, and choose your charging type. Remember to select the correct mode to match your battery type for optimal charging performance.

The dimensions of the HKM-135507 are compact, measuring 113mm in length, 38mm in width, and 29mm in height, making it convenient for storage and travel.

For anyone who relies on rechargeable batteries, the HKM-135507 Universal Battery Charger is an indispensable tool that simplifies the charging process while ensuring safety and efficiency. Keep your devices powered and your batteries ready with this versatile charger.

Rechargeable battery type:
26650, 22650, 26500, 18650, 18490, 18350, 17670, 17500, 17355,
16340,14500, 10440 etc.
AA / AAA / A / SC / S
Specific parameters
DC input voltage: 5V-1A
Battery charging current: 500mA / 1000mA
USB output: 5 ± 0.2V-1000mA
Termination method: Intelligent voltage monitoring
Dimensions: 113mm (length) * 38mm (width) * 29mm (height).
Supported batteries
Supports 3.7V Li-ion / 3.8V Li-ion / 3.2V Li-Fe / 1.2V NiHM
Lithium batteries: 26650, 22650, 26500, 18650, 18490, 18350, 17670, 17500, 17355, 16340, 14500, 10440, etc.
Ni-MH batteries: AAA / AA / A / SC / S, etc.
Warning: Please select the correct charging mode to charge your battery.

USB 5V boost output

USB 5V is only used as a 3.7V / 3.8V lithium battery boost output, and the output current is 1000mAh (NiMH battery is invalid).
USB 5V has no effect when the charger is connected to the adapter.
The USB 5V output of V10 is suitable for most mobile electronic devices on the market, but not all products have been tested, so it is not excluded that some 5V electronic products are not applicable.





Button and LED description



SELECT: Press and hold the button to switch between "0.5A and 1A" charging current. Press the button at the beginning to select the battery charging type. Press the button during charging to view the battery charging type.

NiMH 1.2V: suitable for 1.2V NiHM rechargeable battery, full charge voltage is 1.42V-1.55V (depending on battery performance)

Li-ion 3.7V: is suitable for 3.7V Li-ion rechargeable battery, the full charge voltage is 4.25V.

Li-Fe 3.2V: Suitable for 3.2V Li-Fe rechargeable batteries, with a fully charged voltage of 3.65V.

Li-ion 3.85V: is suitable for 3.8V Li-ion rechargeable battery, the full charge voltage is 4.35V.

25% / 50% / 75% / 100%: indicates the battery level.



Instructions for use:

Put the battery into the charger in the correct direction and then connect the power. At this time, you can choose the charging type. If you don't choose the charger, it will be charged by default.

During the charging process, press and hold the button at any time to change the charging current.

When using, the charger intelligently recognizes 1.2V@NiHM and 3.7V@Li-ion batteries. If it is confirmed that the battery is a 3.2V@Li-Fe battery or a 3.8V@Li-ion battery, please select the corresponding battery type for charging.





Precautions

Please select the correct battery type for charging.

Before using, please refer to the manual carefully and operate the charger correctly.

Use a 5V / 1A adapter.







Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 97168574375

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4.2 ★★★★★
Based on 9 reviews
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Product Reviews
C
Verified Purchase
Chief
Omaha, US
★★★★★ 4
Very nearly the perfect frother for all your basic frothing & mixing needs
Color: Black
There are a lot of middle-of-the-road frothers out there. I've been through a few of them in my recent search for something that could mix and froth well, without taking up any more outlets in my basement kitchen. Of the three Maestri frothers I've tried so far, this one wins the race by a nose. Most recently, these Maestri frothers come in basically three versions: A single-speed @ 8000 RPM, a two-speed @8000/5500 RPM, and this stepless variable-speed version. Aside from that, the only real difference in recent version pack-outs is which attachments they come with. Look over the reviews of the single-speed version and you'll find that while it can and does froth well, it starts at a single, high speed and gets there fast. This makes it pretty easy to spin liquid right out of most common cups and mugs. There is a two-speed version, but it's harder to find, only comes in one color (Grape Purple), and while it's much better than the Maestri single-speed, it still has a couple of quirks that make this variable-speed version win out. This mixes and froths whole milk, half-and-half, or heavy whipping cream, or just about anything else very well. Like all frothers, it takes a little time to learn its nuances and nail down the technique, this will definitely get you there. The best feature of this is easily the speed control. Turn the knob to turn it on at a low speed that's great to get things started, then turn the knob to crank up the speed just enough to do what you need, whether that's mixing or frothing. The low starting speed makes it easy to keep things under control without undue spilling, and the max speed is more than enough to make quick work of getting your froth on. There are really only two complaints I have with this stepless, variable speed version: - I'd really like to have a Press On / Release Off button in addition to the Speed Control knob. More than one time have I gone to turn this off, only to spin the knob the wrong way and crank the speed up to ludicrous, sloshing liquid on the counter. Being able to turn it Off just by letting go of the button would be quick and easy. This configuration would allow using a preferred speed right from the start, while still allowing speed to be adjusted on-the-fly when needed. - Give it a bigger battery. It would cost mere pennies to give this a 2000mAH+ instead of a 1200mAH battery, and I can't think of any reasonable downside to that. - Give the motor a little more torque. It's fairly easy for the current motor, at any speed, to get bogged down in a thick protein powder mix, or when pressing the frother or other attachment a bit too hard into the bottom or side of the frothing container. A bit more "oomph" would prevent that. I really like the overall design and features of thes Maestri frothers better than many other, cheaper versions. This variable-speed version is pretty great as it is and probably the one I would recommend over the single- or two-speed, for most people. But I often find myself using two hands -- one to hold it steady, and the other to turn it on and tweak the knob to the desired speed(s) -- for a device that should arguably need only one hand to use. Just a couple of minor tweaks as noted above would make this the overall best frother of its type that I've used.
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Reviewed in the United States on May 23, 2025
D
Verified Purchase
D. Smith
Cuba, US
★★★★★ 5
Hands down, the BEST handheld frother I've ever used!
Color: Black
Hands down, the BEST handheld frother I've ever used! I got the black one, but any color will have the same results. Over the past 12 years or so, I've used so many different handheld frothers and they've ALL fallen short of expectations for quality, longevity, power, features, and usability. I've used everything from cheap, $15 models to $50+ models and everything in-between. Some with fancy attachments for various types of mixing, frothing, beating, whipping, etc. Some with rechargeable batteries, some without. Some AC powered, some with fixed whisks, some with detachable/replaceable whisks, some with stands, etc. NONE have been spectacular. Most broke within 6 months and got tossed. ALL were major disappointments in the end, including the "revered" Zulay models of which I tried several. I finally found this Maestri House branded, variable speed frother with detachable / replaceable whisks and got one to try. I was literally on Cloud Nine the first time I turned it on. Like, WOW! Not only was it FAST on the highest speed, but it was powerful enough to churn right through milk, eggs, cream, etc, without bogging down like many others. This thing makes milk froth like a milkshake and Matcha Lattes like nothing else I've ever experienced. I used to have to sift my Matcha, then whisk it in hot water, then froth milk and then blend them together to make the perfect latte. and if the milk was cold (my preference), pre-whisking in hot water was a must to avoid lumps. However, with THIS frother? I literally pour my milk into a tall tumbler, drop in un-sifted Matcha powder, and spin up the Maestri House frother at first on a medium low speed to get it mixed, then jump straight to the highest speed to really whip that milk and match up. After about 30-45 seconds, I've got the thickest, richest, smoothest, most aerated latte around. And NO LUMPS at all!!! What a time and dish saver! And cleaning? I just run it under hot running water to get the shaft cleaned and then spin it up in a dish with hot running water for a few moments, then spin it on high for a few seconds in the air to dry it off instantly. Now, I'll be honest here, too. The specs say it can go months on a charge, using it for a couple minutes a couple times daily. Well, I guess it could do that and still spin. But I use it FULL SPEED, churning hard for at least a minute a couple times per day. After about 2 weeks, I can start to notice a speed reduction so I just plug it back in on the charger. All things considered, this is still better than all the other handheld frothers I've used over the years. After using the heck out of this thing for the past 7 months, I've even decided to start selling these in our Japanese gift shop. The manufacturer is has been very responsive both in customer support (I called them about an issue I thought I was having, and they called me back with a couple hours even though I didn't leave voicemail when they didn't answer right away) and in reseller support. I have to give these guys an A+ for responsiveness and quick resolution when problems might arise. HIGHLY recommended!!
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Reviewed in the United States on October 17, 2025
H
Verified Purchase
Hawaii Keith
Phoenix, US
★★★★★ 5
Great Addition!
Color: Black
Why did you pick this product vs others?: I just started a powdered drink routine recently and was having a difficult time mixing it with water. I would consistently end up with small nuggets of mix making it unenjoyable to drink. I knew I needed a mixer and was glad I found this device when I did. It works perfectly! I like the fact that it comes with its own stand and included two mixing heads. It is solid, well-designed, and you can feel the quality when you pick it up. The variable speed of the mixer is perfect for ensuring that everything is blended well. I haven’t used it to “froth” anything yet, at least not on purpose, but I accidentally found out that it can do that well. This is a great addition to our kitchen and is very easy to wash after use. So far…no issues. Highly recommend for those of you looking for the right tool to make sure those protein mixes aren’t full of unmixed nuggets.  
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Reviewed in the United States on June 21, 2025
S
Verified Purchase
Suzi blue
New York, US
★★★★★ 4
Low foam
Color: Black
Love this frother. It is great quality and the turn speed is amazing. My only issue is this. It comes w 2 wands and they are both singles. The single is great for stirring things up. It does not make a lot of froth and for some things it’s perfect but sometimes I like a lot of froth and I wish it either came w a single and a double or you could purchase a double separately to intermix. I don’t want to buy a whole other unit just for the double. I wrote to them bc the double frother they sell doesn’t look as good as this one but sometimes a girl needs a lot of foam and sometimes th stirring is perfect.
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Reviewed in the United States on February 20, 2026
A
Verified Purchase
Alan Smithee
Whiting, US
★★★★★ 5
Strong and Quiet
Color: Lux Cardinal Red, Size: Rechargeable Z1 Motor Max
Better than I expected. Works in two modes. Makes mixing a breeze.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026

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