18650 Battery Charger, Keenstone Smart Universal Charger LCD Display for Rechargeable Batteries Ni-MH Ni-Cd AA AAA Li-ion LiFePO4 IMR 10440 14500 16340 RCR123A 26650
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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Tuesday, May 20
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Features
- UNIVERSAL CHARGER FOR: Li-ion LiFePO4 IMR INR ICR 25500 22650 18650 18490 18500 18350 16340 RCR123A 14500 10440 Batteries, Ni-MH Ni-Cd A AA AAA AAAA SC Batteries.
- HIGH QUALITY: Compliant standard - UL CUL CE TUV GS PSE FCC RoHS C-TICKCB. Built-in intelligent circuits protection to protect the battery safety charged.
- LCD DISPLAY: LCD display to monitor the four slots information. Each battery parameter such as voltage (V), current (mA), time (h) can be showed independently by pressing the A/B/C/D button.
- MULTI CHARGE OPTIONS: 4 independently bay, 2 charge curent (500mA,1000mA) to meet your various needs; Black and grey are just different in color to meet your multiple aesthetic.
- SAFETY: Protection of overcharge, over-discharge, short circuit and reverse polarity.
Brand: Keenstone
Color: black
Product Dimensions: 4.13"D x 5.91"W x 1.57"H
Item Weight: 15.34 ounces
Output Voltage: 4.2 Volts
Product Dimensions: 5.91 x 4.13 x 1.57 inches
Item Weight: 15.3 ounces
Item model number: 1071035
Is Discontinued By Manufacturer: No
Date First Available: October 12, 2018
Manufacturer: Keenstone
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, May 20
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
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- Affirm Financing
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- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Color: black
I recently purchased this battery charger for my older 18650 batteries, and it proved to be an incredibly useful tool for assessing their condition. This charger not only enabled me to determine whether the batteries were charging properly but also allowed me to identify any non-functioning ones that needed to be discarded. Firstly, the charger's functionality in testing and charging 18650 batteries was impressive. It provided clear indications as to whether the batteries were charging or not, eliminating any guesswork. This feature was particularly helpful in determining the status of my older batteries, as their performance had become unpredictable over time. The charger's intuitive design made it easy to understand the charging process and assess the batteries' condition accurately. The convenience of this battery charger was another standout feature. It allowed me to charge multiple batteries simultaneously, saving time and effort. Instead of having to charge each battery individually, I could conveniently place them in the charger and let it handle the process efficiently. This feature was especially valuable when dealing with a large number of batteries. One aspect I particularly appreciated was the charger's ability to identify non-working batteries. By indicating whether a battery was charging or not, it enabled me to identify those that were no longer functional. This feature allowed me to declutter and discard the batteries that were no longer useful, ensuring that I only used reliable and functional ones for my devices. The build quality of the battery charger was satisfactory. It was sturdy and well-constructed, providing a sense of durability. The charger's design also featured safety mechanisms to prevent overcharging or overheating, ensuring the protection of both the batteries and the user. In conclusion, the battery charger for 18650 batteries proved to be an invaluable tool for assessing the condition and charging capabilities of my older batteries. Its user-friendly design, ability to charge multiple batteries simultaneously, and the convenience of identifying non-working batteries made it a worthwhile investment. If you have a collection of 18650 batteries and need a reliable charger, I highly recommend considering this product. It effectively helped me revive usable batteries and discard non-functional ones, ensuring optimal performance for my devices.
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Reviewed in the United States on September 6, 2023 by Random Guy
Color: black
I purchased two Keenstone Smart Universal Chargers last week got it in a few days. Put them to work right a way. Charged over 30 batteries AA, AAA and 18650 battery. All batteries charged in a fast time. I did charged them at lower setting of 500 instead of 1000. It seems like they are great chargers at very reasonable price. I did research a bit before I spend $ on Keenstone chargers. I would buy them again! As always Amazon delivery was outstanding.
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Reviewed in the United States on October 22, 2024 by JO
Color: black
I recently purchased the Keenstone Smart Universal Charger for my rechargeable batteries, and I'm thoroughly impressed. Here's why it deserves five stars: Versatility: This charger supports multiple types of rechargeable batteries, including Ni-MH, Ni-Cd, AA, AAA, and Li-ion 18650 batteries. It's incredibly versatile and handles different sizes and chemistries effortlessly. Smart Features: The LCD display provides real-time information on charging progress, including battery voltage, charging current, and charging status. It's intuitive and makes monitoring easy. Efficiency: Charging is fast and efficient, with smart technology that automatically detects battery type and adjusts the charging current accordingly. This ensures optimal charging without overcharging or damaging the batteries. Safety First: The charger incorporates safety features such as overcharge protection, reverse polarity protection, and short circuit protection. It gives me peace of mind knowing my batteries are charging safely. User-Friendly Design: The charger is compact, lightweight, and easy to use. Inserting and removing batteries is straightforward, and the controls are simple enough for anyone to understand. Overall, the Keenstone Smart Universal Charger has exceeded my expectations with its performance, versatility, and user-friendly design. Whether you're a hobbyist or just looking to recharge your household batteries efficiently, I highly recommend this charger.
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Reviewed in the United States on July 10, 2024 by JHG
Color: black
Extremely helpful to be able to charge for a different batteries at the same time. Used in preparation for Hurricane since we live in Florida. Confident to know the batteries were fully charged. Highly recommend
Reviewed in the United States on November 16, 2024 by Joseph M. Falasco
Color: black
Charges 4 batteries at a time!
Reviewed in the United States on October 11, 2024 by Jim M.
Color: black
I am so sorry that I waited so long to get this charger. It is freaking, nice display, charges quickly all kinds of rechargeable batteries. You would need some sort of adapter of some kind to recharge the 14250 battery. Other than that I had no issues like any of the negative posts. But, yeah, this thing gets my highly recommended rating!
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Reviewed in the United States on November 13, 2024 by Nyghtshayd
Color: black
I'm still learning what all the functions are. I got it to charge my batteries for a dress. It worked very well and was easy to set up. Charged at a decent rate as well. I will be buying a new one since I lost the cord to this particular one. It gives important battery info as it charges,which is a nice thing to have. Normally...I just had to leave my batteries on the charger for a day and hope they were fully charged. I only use the batteries 2x a year,so it's nice to know when they are no longer holding a full charge due to age or damage of some sort.
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Reviewed in the United States on August 31, 2024 by monique gutzwiller
Color: black
Everything in my house is using rechargeable AA and AAA batteries, especially all the kid toys. The option to recharge at 500mW and 1000mW is nice. The optional car DC plug has helped when camping or just using our solar/battery backup out here in the country.
Reviewed in the United States on January 2, 2025 by Bryan C. Tewksbury