Review on Rechargeable Batteries Charging Over Charge Protection by Nicole Hefton

I've finally seen that all manufacturers of electronic devices are doing without individual chargers. These batteries are a striking example of this. The 4 batteries come with a USB cable with four USB-C heads. You can easily charge all four at the same time by plugging them into a power bank or other USB port. They have red LEDs on the positive pole to indicate they are charging, charge quickly and work great. I charge them with my external battery, which stops charging the connected device once it's full. Of course, in order for the bank to understand that the connected device is charged, an overcharge protection circuit must be installed on the connected device. These batteries are no longer charged and the power bank stops charging. So I can say that the claimed overcharge protection in the listing is correct and it is safe to use these batteries. Typically, the overcharge protection is built into the chargers, not the batteries themselves. The capacity of these batteries is specified as 2000 mWh. Since they are 1.5V batteries, they are comparable to 1300mAh batteries. Considering that these batteries have an inverter and all the protections, the reduced battery capacity should come as no surprise. I think it's a compromise not to have a charger with you when you travel or to eliminate the risk of forgetting it at home and carrying batteries with you for no reason. 1300 mAh is still a good capacity, especially for a toy or flashlight that often needs new batteries. When used as intended and with one or two spare sets in hand, these rechargeable batteries save a lot of money and protect nature and natural resources. I liked the concept, ease of transport and use. Highly recommend, especially for travel.