The Battery Emulator is a compact all-in-one bench tool that combines a programmable bench power supply, electronic load and battery emulator in a single standalone device. It is designed for developing, testing and analyzing power electronics, battery-powered devices, chargers and embedded systems directly on the workbench.

Unlike a conventional laboratory power supply, the device can actively emulate realistic battery behavior including adjustable output voltage, current limiting and simulated internal resistance. It can also operate as an electronic load for discharge tests and charger validation while continuously monitoring voltage, current, power and energy values.

The device features a rotary encoder driven OLED user interface and can operate independently without requiring a PC. USB-C is used for power input, firmware updates and optional PC connectivity.

Technical specifications (current target values):

• Input voltage range: 5V – 20V
• Programmable output voltage: approximately 0 V to 0.8 V below the input voltage
• Maximum output current: approximately 3A
• Electronic load current: up to approximately 2A continuous
• Maximum electronic load power: up to approximately 40W depending on cooling and operating conditions

Main features:

• Programmable CV/CC bench power supply mode
• Electronic load mode
• Battery emulation mode
• Adjustable output voltage
• Adjustable current limiting
• Simulated battery internal resistance
• Charger testing and charger behavior analysis
• USB-C PD input support
• DC barrel jack input support
• Automatic input source handling
• Real-time voltage, current and power measurement
• Energy measurement (mAh / Wh)
• Virtual battery state-of-charge simulation
• Configurable battery profiles
• Li-Ion battery emulation
• LiFePO4 battery emulation
• Lead-acid battery emulation
• Custom battery profile support
• Continuous live measurements
• Output voltage monitoring
• Input voltage monitoring
• Thermal monitoring
• Overtemperature protection
• Short-circuit protection
• OLED user interface with rotary encoder control
• Standalone operation without a PC
• Firmware update support via USB-C
• Optional PC communication interface

What it can do

The device can operate as a programmable power source with adjustable voltage and current limits, as an electronic load for controlled discharge testing, or as a battery emulator for realistically simulating battery-powered systems.

In battery emulation mode, the output behavior can mimic real batteries including voltage sag under load caused by configurable internal resistance. This allows realistic testing of embedded devices, motor drivers, converters and battery chargers without requiring physical batteries.

The electronic load functionality enables controlled power dissipation for testing power supplies, converters, USB-C adapters and charging circuits. Voltage, current, power and transferred energy are continuously monitored and displayed in real time.

The device can also analyze charger behavior by simultaneously simulating a battery while internally dissipating incoming energy using the integrated electronic load stage. This allows observation of charging curves, current limiting behavior and voltage regulation characteristics under controlled conditions.

Typical use cases

• Development of battery-powered electronics
• Testing embedded systems without physical batteries
• Charger validation and charger behavior analysis
• Power supply testing
• DC/DC converter evaluation
• Battery simulation during firmware development
• Electronic load and discharge testing
• USB-C PD adapter testing
• Verifying current limiting and protection behavior
• Educational and laboratory use
• Bench testing without a computer

User interface

Operation is performed entirely using the onboard OLED display and rotary encoder, allowing the device to function as a fully self-contained laboratory tool.

The interface provides live monitoring of voltage, current, power, energy consumption and battery simulation parameters directly on the device.

If you have any questions about the available features or general queries regarding the device, please feel free to contact us at any time.

The package only includes the Battery Emulator device. A USB-C cable and external power source are required for operation and are not included.