ProTek RC NiZn USB Battery Charger (4 Slots) (AA/AAA)
About this part
Charger Overview:
Introducing the ProTek RC Nickel-Zinc (NiZn) USB Battery Charger. This charger is designed for charging up to four AA or AAA NiZn batteries simultaneously. Specifically designed for NiZn batteries, it ensures proper charging and battery maintenance. NiZn batteries are known for their higher voltage compared to traditional NiMH batteries, so using a charger specifically for NiZn is important for safety and efficiency. This charger is equipped with red and green LED indicators for ease of use, letting you know in real time when your batteries are fully charged and ready for action. The USB design makes it convenient to plug into wall adapters, USB cubes, and even power banks which gives you the option for on-the-go charging.
Note: This charger is specifically designed for NiZn batteries and is not compatible with NiMH or NiCD type batteries. Please do not use this charger with any other type of battery except NiZn AA & AAA.
Features:
- Charges up to four AA or AAA NiZn batteries simultaneously
- USB connection allows flexibility in using various power sources
- Specifically designed for NiZn batteries, ensuring safe and efficient charging
- Red and green LED indicator lights for real time charging updates
- Lightweight and portable design makes it easy to transport
Specifications:
- Input Voltage: 5V
- Output Voltage: 1.88V
- Compatibility: AA/AAA (NiZn Only)
- Charging Indicator: LED (Red/Green)
Includes:
- (1) NiZn USB Battery Charger
- (1) USB Cable
Needed to Complete:
- (1) USB Outlet Adapter or USB Power Bank
CA Residents Prop 65 Warning
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...Reviews2.3 · 4 reviews
Works great for some mini z racing. Can even be used for the tv remotes.
Listing says it's for both AA and AAA but it arrived and it's not even close to fitting the AAAs
Charging took forever. The LED lights indicated the battery was not complete but when tested showed battery was fully charged. The fitting of the AAA batteries is off and causes mixed charge status. The LED lights indicated the battery was not complete but when tested showed battery was fully charged. And vice versa, shows green as charged but battery was very low or dead. Had to use a Amazon purchased charger to get Protek AAA's charged. Buyers beware. Purchased Charger in Feb 2026
I wish I could get these to work. I've tried multiple wall chargers and the supplied cable. The batteries don't seem to register and will not charge. Online suggestions didn't make a difference. They also feel a little cheap and thin compared to other battery chargers I've used.
Reviewers are divided. One verified owner rates it highly, saying it works well for Mini-Z racing and TV remotes. The other three reviews are critical, with two reporting that the AAA slots do not fit batteries properly. One reviewer reports batteries not registering or charging despite trying several power sources, and another reports misleading LED status that does not match battery state. Reviewers also describe the build as thin and cheap, and one reports slow charging. The recurring issue is AAA fit and unreliable charge indication.
- + Works well for Mini-Z racing
- + Usable for TV remotes
- − AAA slots do not fit batteries properly
- − Batteries may not register or charge
- − LED status does not match actual charge
- − Feels thin and cheap, charging slow