Take full control of your battery bank with the Mixbox 50A Battery Coulometer. Whether you are building a DIY solar system, upgrading your caravan/RV, or managing a lithium backup setup, this high-precision meter gives you the exact data you need. It works seamlessly with both Lead-Acid and Lithium batteries, providing real-time voltage, current, power consumption, and remaining capacity to prevent unexpected power failures.
- Real-Time Battery Monitoring
The clear, backlit LCD screen displays all critical metrics at a glance: Remaining Capacity (%), Battery Capacity (Ah), Voltage (V), Current (A), Power (W), and Runtime (Time). Stay informed about your battery's health instantly.
Smart and versatile, this coulometer automatically adapts to most battery chemistries. As long as your battery operates within the DC 8~120V range, it is ready to go-perfect for LiFePO4, Li-ion, Gel, AGM, and standard Flooded Lead-Acid batteries.
- Smart Design & Low Consumption
Built with a memory function, it automatically saves your battery capacity data even when power is lost. The device consumes extremely low standby power (only 0.5mA), making it ideal for permanent installation in passive or long-term DIY circuits. The backlight activates automatically when used, ensuring easy reading in any light.
The package includes a 50A heavy-duty external sampler (shunt) and a shielded connection cable. Its compact design and mounting holes allow for quick installation on dashboard panels, enclosures, or equipment racks.
An essential tool for battery management in electric vehicles (EVs), solar power setups, UPS/inverters, portable power stations, 4x4 overlanding gear, and advanced hobbyist DIY projects.
Technical Specifications:
Model Mixbox 50A Battery Coulometer
Operating Voltage DC 8~120V
Operating Current 0~75A (Rated for 50A continuous)
Power Consumption 6.0 mAh
Standby Current 0.5 mA
Display Type LCD Green Backlight
Display Area 3.2 cm x 2.3 cm (1.25" x 0.9")
Material Durable ABS Plastic + Copper Terminals
Color: gray, black
Material: plastic, copper
Weight: 0.19kg (0.41lbs)
Product size: 50A Coulomb meter size: 6.6cmx4cmx1cm (2.59inx1.57inx0.39in)
Screen display area size: 3.2cmx2.3cm (1.25inx0.9in)
50A sampler size: 6.2cmx4.2cmx1.3cm (2.44inx1.65inx0.51in)
Packing size: 15cmx15cmx5cm (5.9inx5.9inx1.96in)
Note:
Minimum Voltage: Please ensure your battery pack voltage is higher than 8V (the minimum operating voltage of the coulometer) to power the screen on.
Sampler Connection: The external 50A sampler (shunt) must be correctly wired in series on the negative terminal of your battery circuit to read amperage accurately.
Due to lighting and screen settings, please allow for slight color differences.
Due to manual measurement, please allow for slight variations in dimensions.
What's in the box
1 x 50A Coulomb Counter
1 x 50A sampler
1 x two meters shielded wire
2 x copper terminals
