Review on 🔋 Black ISDT C4 EVO Smart Battery Charger with Type-C QC3.0 Output for AA AAA Li-ion Battery featuring IPS Display Screen and Fire Prevention Material by Veronica Jackson

After looking at many different chargers including BT-C3100(3400), Litokala Lii-500S and many more, I chose this one because of the very user friendly interface, up to 3 charges current Amps, a wide range of battery chemistries, adjustable charge and discharge currents in 0.1 amp increments, a great display with lots of information, and upgradable firmware (the software that makes it work). In choosing this charger, I knew that given the limitations of the charging bay, I was sacrificing the convenience of battery size and the number of batteries that can be charged at once. It allows you to simultaneously charge up to (4) AA batteries or (2) AAA batteries or (2) 18650 batteries and similar batteries. For example, you cannot charge AA or AAA batteries when charging an 18650 cell. This limitation can be circumvented with adapters that use 4 AA charging points connected to external battery holders. Some models of these 3D printing adapters are available online for free and some can be purchased; I have seen adapters for (4) 18650 or (4) AAA cells. I have decided to design my own adapter which will allow me to use 1 to 4 adapters individually and use the remaining AA charging slots in the charger itself. After connecting the power supply, the display shows the voltage of the power supply. This screen allows you to configure the charging settings. These include language, buzzer volume, display intensity, whether or not a charge interrupt is used depending on the cell capacity, time after inserting the battery to start automatic charging, scrolling time of the battery information display. I chose to start charging manually because it allows you to easily set the parameters that will charge the newly inserted battery. This is very important if you are loading different chemical or capacitive cells or if you want to do different operations for each cell. When you insert the battery, the battery voltage will be displayed on the screen before charging begins. Battery options will also appear for you to choose from. The charger then charges automatically or waits for a manual start. The charger can automatically recognize the chemical composition and the charge/discharge parameters and the operation to be performed. I recommend manual selection. Once you have selected these options and the operation to perform, you will be presented with the same options for each cell you insert into the charger. After starting operation, the display will show all relevant parameters and values for each cell for the length of time you selected on the charger's setup screen, and then move on to the next battery pack. You can manually switch the screen to show some parameters and a voltage versus time graph. I'm very happy with the charger, but: - It would be better if it had regular spring-loaded charging slot contacts, which would allow you to charge from AAA up to 26700 cells - It would be even better if you could charge 9 volt batteries - Use stronger charging contacts would also be a welcome improvement - Some have complained about the internal fan's noise level.