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bonai 18650 lithium battery chargers: fast charging for all your batteries - aa, aaa, c, d, li-ion 18650, 18500, and more (2 slots usb charger) logo

Bonai 18650 Lithium Battery Chargers: Fast Charging for All Your Batteries - AA, AAA, C, D, Li-ion 18650, 18500, and More (2 Slots USB Charger) Review

3

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Very good

Revainrating 4.5 out of 5  
Rating 
4.7
🔌 Household Battery Chargers, 🧻 Household Supplies

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img 1 attached to Bonai 18650 Lithium Battery Chargers: Fast Charging for All Your Batteries - AA, AAA, C, D, Li-ion 18650, 18500, and More (2 Slots USB Charger)
img 2 attached to Bonai 18650 Lithium Battery Chargers: Fast Charging for All Your Batteries - AA, AAA, C, D, Li-ion 18650, 18500, and More (2 Slots USB Charger)
img 3 attached to Bonai 18650 Lithium Battery Chargers: Fast Charging for All Your Batteries - AA, AAA, C, D, Li-ion 18650, 18500, and More (2 Slots USB Charger)
img 4 attached to Bonai 18650 Lithium Battery Chargers: Fast Charging for All Your Batteries - AA, AAA, C, D, Li-ion 18650, 18500, and More (2 Slots USB Charger)

Description of Bonai 18650 Lithium Battery Chargers: Fast Charging for All Your Batteries - AA, AAA, C, D, Li-ion 18650, 18500, and More (2 Slots USB Charger)

Strong Practicality : Universal Charger for All Types of Li-ion 18650 18500 18490 18350 17650 17670 17500 16340 14500 22650 25500 22700 21700 20700 3.7V lithium battery and Ni-MH/Ni-Cd 1.2V Double A Triple A A AA AAA C D batteries and so on.It do not support 3.2v LiFePo4 batteries. Intelligent Design: Independent charge channels, it can charge two batteries at the same time or one battery independent and making the charging process visible status and stopping once completing charge intelligently. USB Charging: Common micro-USB input makes it possible to be powered up by any USB 5V output, like wall chargers, power banks, car chargers etc. Safe technology :Adopt negative voltage control technology to improve charge efficiency. Temperature protection: Stop charging automatically if the temperature of charger or battery gets too high when charging. Stainless steel rail is more durable and smooth. Worldwide voltage, suitable for the whole world. Intelligent Charger - We guarantee the quality before the item ships and please confirm your battery is genuine / not damaged / quality / Rechargeable before charging. Offer 24 Hours Warm Service, 30 Days Free Refund, 2 Years Free Replacement, Lifetime Maintenance.

Reviews

Global ratings 3
  • 5
    2
  • 4
    1
  • 3
    0
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

It works with many different batteries

The charger does what it promises. It doesn't overheat and compared to my other charger with a negative delta V cutoff, it cuts off at just the right time. Charges the 18650 well and also my AA, AAA, C and D batteries. It works and that's the main thing for me. Good charger.

Pros
  • Free for educational purposes
Cons
  • Not sure

Revainrating 4 out of 5

Works with GumStick batteries

Tried to find a cheap GumStick battery charger as all the ones I've seen are $20. This ended up working well. I wanted to make sure it was the right voltage so I measured the terminals while charging and it was around 1.3V. I feel safe using this through a 3D printing adapter and it doesn't need a mode.

Pros
  • Lots of positive vibes
Cons
  • No power

Revainrating 5 out of 5

The quality is good, the battery is strong, it charges quickly.

Media failed to load. I needed a D size charger as all my batteries only fit C size which was a big surprise to me. So I went with this one as it is a battery brand and the charger works very well with them. It charges quickly, the display works great and the springs are of good quality where they hold the batteries firmly. I love the USB 3 connector that allows me to charge these batteries anywhere. No cons, good little charger that I'm very happy with.

Pros
  • GOLS certified
Cons
  • Available in black only