Gaqqee MDL150 150W Electronic Load Battery Capacity Tester
Gaqqee MDL150 150W Electronic Load Battery Capacity Tester
Gaqqee MDL150 Multifunction Discharge Tester — Precision Battery & Load Testing
The Gaqqee MDL150 is a professional-grade, CNC electronic load tester designed for accurate battery capacity measurement, discharge testing, and electronic load analysis. Featuring a vivid 2.4-inch full-color display, three operating modes, and quadruple safety protection, this unit delivers reliable performance for hobbyists, technicians, and engineers alike. Made in Mainland China.
Key Features
- 2.4-Inch HD Color Display: Presents voltage, current, power, capacity (Ah), energy (Wh), and elapsed time at a glance with exceptional clarity and brightness control.
- Three Operating Modes: Switch seamlessly between CC (Constant Current), CP (Constant Power), and CR (Constant Resistance) modes for versatile load testing scenarios.
- Wide Load Range: Handles DC 0–150V, 0–20A, and 0–150W (max 60W at 120V and above), with a maximum energy measurement of 99,999.9 Wh and capacity measurement of 99,999.9 Ah.
- Quadruple Safety Protection: Automatic overvoltage, overcurrent, overpower, and overtemperature protection (triggers at 75°C internal) keeps your equipment and batteries secure during every test.
- Real-Time Temperature Monitoring: Built-in NTC sensor continuously tracks internal temperature; supports an external NTC 3950 10K 1% probe to measure 0–100°C ambient or surface temperatures.
- Programmable Cooling Fan: Automatically activates when internal temperature reaches ≥40°C or load current exceeds 3A, maintaining optimal operating conditions.
- Timed & Voltage-Limited Discharge: Set timed discharge sessions up to 99 hours 59 minutes, or configure low-voltage cutoff protection to safeguard your batteries.
- 4-Wire Kelvin Sensing (A+ V+ V- A-): Eliminates lead resistance errors for high-accuracy readings; fully backward-compatible with 2-wire setups.
- Bilingual Interface: Instant switching between Chinese and English — perfect for global users and professional lab environments.
- One-Button Data Reset: Clear cumulative data instantly with a single press; supports open-circuit voltage and current calibration and factory settings restore.
- CE, RoHS & WEEE Certified: Meets rigorous international safety and environmental standards.
Full Specifications
| Model | MDL150 |
| Operating Voltage | DC 12V (12V 1A adapter included) |
| Plug | US standard (European adapter included) |
| Load Voltage (U) | DC 0–150V |
| Load Current (I) | DC 0–20A |
| Load Power (P) | 0–150W (P = U × I ≤ 150W; max 60W at ≥120V) |
| Wiring | 4-wire (A+ V+ V- A-), 2-wire compatible |
| Max Energy Measurement | 99,999.9 Wh |
| Max Capacity Measurement | 99,999.9 Ah |
| Cumulative Time | ddd:hh:mm:ss |
| Timed Discharge | Up to 99 hours 59 minutes |
| Overtemperature Trigger | 75°C internal |
| External Temp Probe | NTC 3950 10K 1% (0–100°C) |
| Display | 2.4-inch color screen, adjustable brightness |
| Dimensions | 195 × 98 × 88 mm |
| Certification | CE, RoHS, WEEE |
| Country of Origin | Made in Mainland China |
What's in the Box
- MDL150 Multifunction Discharge Tester × 1
- US Standard 12V 1A Power Adapter × 1
- European Plug Adapter × 1
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Frequently Asked Questions
Q: What battery types can the Gaqqee MDL150 electronic load tester test?
A: The MDL150 is compatible with any DC power source within its operating range (0–150V, 0–20A, 0–150W), including lithium-ion, LiFePO4, lead-acid, NiMH, and other rechargeable battery packs, as well as DC power supplies and solar panels. It measures discharge capacity (Ah) and energy (Wh) with high accuracy.
Q: What are the three operating modes on the MDL150 and when should I use each?
A: The MDL150 offers CC (Constant Current) mode — ideal for standard battery capacity testing at a fixed discharge rate; CP (Constant Power) mode — useful for simulating real-world device loads; and CR (Constant Resistance) mode — best for testing power supplies and sources under resistive load conditions. Select the mode that matches your testing requirement directly from the on-screen menu.
Q: Does the MDL150 discharge tester include a power adapter?
A: Yes. The package includes a US standard 12V 1A power adapter to power the unit itself (the tester requires DC 12V to operate), plus a European plug adapter for international compatibility. Note that batteries or devices under test are not included.
Q: How does the quadruple safety protection system work on this electronic load tester?
A: The MDL150 features user-configurable overvoltage protection (up to 150V), overcurrent protection (up to 20A), overpower protection (up to 150W), and automatic overtemperature protection that triggers when the internal temperature exceeds 75°C. When any threshold is reached, the unit automatically halts the load to protect both the tester and the device under test.
Q: What is the accuracy of the 4-wire measurement system on the MDL150?
A: The 4-wire Kelvin sensing configuration (A+ V+ V- A-) separates the current-carrying leads from the voltage-sensing leads, effectively eliminating errors introduced by lead and connector resistance. This makes the MDL150 significantly more accurate than a standard 2-wire measurement, especially at higher currents. It is also fully backward-compatible with 2-wire connections.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.