This high-precision bidirectional current meter is designed to measure voltage and current in real-time, displaying positive/negative values for charging/discharging scenarios. Ideal for testing battery capacity, solar systems, RC models, and electric vehicles (EVs), it ensures accurate statistics for charging/discharging cycles. This ammeter is suitable for measuring current and voltage. It is bidirectional and displays positive and negative current values. It is suitable for chargers and other applications with high accuracy. It can be used to calculate battery charge and discharge capacity, etc. Please Note That: 1. Working for a long time above 25A may affect accuracy. 2. Does not work below 8V. Unable to measure voltages below 8V. 3. Do not open the soldering wire, as the thickness of the solder will affect its accuracy. Because each of them has undergone separate calibration before leaving the factory. Please use the XT60 plug for wiring, 4. OLED screens may shatter upon impact, please handle with care. 5.The Analyzer can work in charger or discharge ircuit,screen will display ositive or negative current. 6. Press the rest button to switch the display interface. Long press to reset the capacity to zero. 7. ****The capacity of charging or discharging is independently accumulated, and if you use it for an electric motorcycle, you may be able to measure the amount of energy recovered**** Screen size: 1.5-inch LCD Refresh rate: 3Hz Voltage range: 8-150V Current withstand: ±2 (50A instantaneous, within 3 seconds) Accuracy: <0.2% Connector: Gold-plated XT60 Test resolution: 0.001V/0.001A Color: Black Material: plastic Package Contents: 1 x Tester 1 x XT60 Input Cable 1 x XT60 Output Cable