HiLetgo 3pcs TP4056 Type-c USB 5V 1A 18650 Lithium Battery Charger Module Charging Board with Dual Protection Functions

The media could not be loaded. Had a 5V 2.1 channel amp board that had a noticeable hum/hiss while charging the 3.7V lithium battery through the amp board. By adding this charger module between the amp and battery, it alleviated the noise. Great little product at a great price. Good connection options. Highly Recommended.

Very good

These are reasonably easy to work with and can charge a small battery at an acceptable rate, but I'm taking off one star because despite including a USB-C connector for input, they do not work with USB Power Delivery, meaning that most USB-C chargers will not power them. This is disappointing, given the prevalence of USB-PD.It should also be noted that these do not provide a 5V output (they are chargers only), but this doesn't affect my rating since they are not advertised as having that feature.

recibido rapido y todo bien

I've had limited success with these, they are charging my batteries, but everything keeps running hot and the batteries drain quickly, using LP653042 3.7V / 820mAh LIPO batteries. I feel like I may be using them with the wrong batteries. Going to continue to research.However, my biggest feedback is the odd placement of the holes on the PCB. They don't fit standard breadboard pins / PCB prototype boards without bending pins. Would love to see these upgraded with a PCB design that fits better on a breadboard.

Used these to upgrade old Nicad screwdriver to Lithium iob battery. Works great.

Value for the money 10/10⭐️Simple to use.Wirk perfect. Really high quality product. Highly recommend.

The first one I used worked.It would be nice if they put a variable resistor in place of the charging resistor, so this module could work with a wider range of nice batteries