Universal Load Controller

Universal Load Controller is an iPhone app for controlling and monitoring DL24 and DL24P electronic load and battery tester devices.

Use the app to run discharge tests, monitor live measurements, and review results in a clean mobile interface. It is designed for hobbyists, makers, repair users, and battery enthusiasts who want a practical way to operate compatible testers from iOS.

Features:

Control compatible DL24 and DL24P devices Live monitoring for voltage, current, power, capacity, energy, temperature, and runtime Configure discharge current, cutoff voltage, and test duration Battery presets and custom test cycles CSV export for raw measurement data PDF report export for test summaries Live Activities support for Lock Screen, Always-On Display, and Dynamic Island Simulation mode for testing the app without hardware Important:

iOS supports compatible BLE-based connections only Features may vary depending on the connected hardware Live Activities require supported iPhone models and enabled system settings Universal Load Controller helps you run battery and load tests more conveniently, with clear mobile control and portable reporting for DL24 and DL24P devices.