C4 EVO Smart Battery Charger with Display - AA / AAA / Li-ion Battery Compatible, The ISDT C4 EVO Smart Battery Charger is a true revolution when it comes to modern energy management and battery control. This charger is designed to meet the expectations of both hobbyists and professional systems. With its compact yet high-performance casing, support for multiple battery types, advanced protection mechanisms, and intuitive interface, it stands out from the competition. It measures 92x120x34mm.
The ISDT C4 EVO supports 1 to 4 cylindrical battery slots (AAA, AA, 18650, 21700, 26650, etc.). It supports a wide range of protocols with USB-C input power, ranging from 5 to 12 V. With QC and PD support, it can even be powered by laptop adapters. The display is an IPS LCD with high contrast and a wide viewing angle, making the charge status easy to read in all conditions.
This device isn't limited to just "charge": It comes with advanced battery care modes like "Discharge," "Store," "Cycle," "Analyze," "Activate," and "Destroy"—providing a complete solution for extending battery life, monitoring its condition, and replenishing it when necessary.
| Feature | Value |
|---|---|
| Supported Battery Types | Li-Ion, LiFe, LiHv, NiMH, NiZn, Eneloop |
| Supported Battery Sizes | AAA, AA, 10440, 10500, 12500, 13500, 14500, 14650, 16650, 17650, 17670, 18650, 18700, 20650, 20700, 21700 22650, 26650, 26700 |
| Input Voltage Range | 5 ~ 12 V (QC/PD protocol supported) |
| Charge Current Range | Horizontal: 0.1 ~ 3.0 A, Vertical: 0.1 ~ 1.5 A |
| Discharge Current Range | 0.1 ~ 1.5 A (Horizontal), 0.1 ~ 1.0 A (Vertical) |
| Display | 320 × 240 IPS LCD |
| Operating Temperature | 0 °C ~ 40 °C |
| Protection Features | Reverse polarity protection, overheating protection, overcapacity protection |
Six channels operate independently. Each channel can be set to different operating modes.
Compatible with 19 types of rechargeable batteries.
Supports charging 4 AA batteries or 4 AAA batteries at a time.
Coverage for various rechargeable battery sizes up to a maximum of 26700 batteries.

Input: Maximum 36W, DC 5~12V,
Supports QC2.0/3.0 and PD. Faster charging.
The laptop USB port can be used as a 5V 1A input power source.

Automatic adjustment of charging parameters for optimal charging performance and multiple battery protection.
Extend battery life with more reasonable charging and discharging procedures.

Download the latest version by connecting your computer via the USB-C interface Upgrade to the firmware.
Always keep the enhanced performance and features.
