150W 25A Smart Battery Capacity & Power Supply Tester with PC & App Control

Turn your workbench into a smart test lab. This 150W / 25A electronic load and battery capacity tester lets you see exactly how your batteries, chargers and power supplies really perform – in real time, on a bright color display, on your PC, or on your phone. Whether you are checking a lithium pack before a trip, validating a new power adapter, or fine‑tuning a DIY project, this user‑friendly tester gives you lab‑grade insight at a hobbyist‑friendly price.

⚡ Key Features & Benefits

• Wide test range for real‑world projects – Test from 1–200V and up to 25A, ideal for lithium batteries, DC power supplies, USB chargers (with adapters), solar setups and more.
• Up to 150W electronic load – Safely discharge and stress‑test devices with automatic limits that help protect both the tester and your equipment.
• Four intelligent operating modes – Choose CC (constant current), CR (constant resistance), CP (constant power) or CV (constant voltage) to simulate real usage conditions.
• Color display with clear curves – Watch voltage, current, power and capacity curves unfold in real time, making it easy to “see” battery health and power stability at a glance.
• PC software & mobile apps – Connect via USB or Bluetooth to log data, draw curves and save test reports on Windows 7/10+, Android 5.0+ and iOS (E_test app).
• Built‑in safety protection – Overload, over‑current and over‑temperature protection help prevent damage and give you peace of mind during long tests.
• 4‑wire measurement for higher accuracy – Reduce voltage drop on test leads so your readings stay precise, even at higher currents.
• Ready to use out of the box – Includes DC 12V power supply, PC cable, temperature probe, crocodile clip leads and US‑to‑EU adapter.
• Beginner‑friendly, expert‑approved – Simple front‑panel controls, Chinese/English interface, and advanced features that satisfy makers, repair techs and engineers alike.

💡 What You Can Do with This Tester

• Check battery capacity and health – Accurately measure how many mAh/Wh your lithium or other DC batteries can really deliver before they cut off.
• Verify power supply quality – See if your adapters and bench supplies hold voltage under load or sag and ripple when stressed.
• Test DIY and repair projects – Safely load‑test your custom power circuits, RC packs, e‑bike batteries, LED drivers and more before real‑world use.
• Log and compare results over time – Use the PC and app software to record curves, compare different batteries and track aging or performance improvements.
• See problems before they fail – Sudden voltage drops, overheating or unstable output become visible on the screen and graphs, helping you fix issues early.

🔍 Safe Power Limits (Use with Care)

To protect the tester and your equipment, always keep the load power within the limits below:

• General rule: Load power P = U × I ≤ 150W (max).
• Voltage < 36V: up to 150W maximum.
• 36–80V: up to 60W maximum.
• 80–200V: up to 45W maximum (no enforced limit in hardware, so use very carefully).
• When voltage exceeds 42V, double‑check polarity and wiring before starting a test.

⚙️ Technical Specifications