ZORZA 1Pcs USB-Enabled Coulometer 8-120V 100A Digital Battery Capacity Tester & Voltmeter/Ammeter with Shunt for RVs Electric Vehicles Solar Systems and Battery Monitoring

Battery Settings: Battery Capacity Setting (Known Capacity) Press and hold both the + and OK buttons for more than 2 seconds, until the screen digits flash, then release the buttons; Press the + or - button to adjust the capacity value (press and hold for fast adjustment). After adjusting, long press the OK button for 2 seconds to save and exit the setting state, otherwise, if no button is pressed within 7 seconds, it will not save and exit the setting state; The default factory setting is 100Ah. Battery Capacity Setting (Unknown Capacity) Drain the battery, reset the Coulomb counter to zero capacity, then fully charge the battery. The displayed capacity value is the actual capacity of the battery; You can enter the capacity setting interface again to reset if necessary. Note: The criteria for a full charge are based on the charging current or backlight status; i.e., a charging current of 0 or when the backlight stops flashing, means the battery is fully charged. Zero Capacity Voltage Setting The setting of zero capacity voltage is mainly to avoid over-discharging of the battery as much as possible, it can be set according to user needs; Press and hold the + and OK buttons simultaneously for more than 2 seconds until the screen digits flash, then release the buttons;The default factory setting is 0V.

• Engineered for universal battery types including lead-acid, lithium-iron phosphate (LiFePO4), and more, our Coulomb Counter with Shunt Monitor. Whether for electric vehicles, RVs, solar systems, or general battery maintenance, it offers accurate voltage, current, and capacity measurements, ensuring you always know your battery's status
• Featuring a user-friendly USB interface, this multifunctional battery online monitoring system provides splash-proof and instant readiness. With its broad working voltage range of 8~120V, it caters to a wide array of applications, from household to outdoor, making it a must-have tool for battery diagnostics
• Stay informed with real-time display of remaining capacity (up to 999Ah) and battery percentage. This ammeter isn't just a measurement tool; it's your battery's health indicator, allowing for proactive maintenance and optimal battery use in RVs, electric vehicles, and portable power solutions
• Crafted with pure copper shunts, our battery monitor ensures accurate dual-direction current detection. This precision extends the life of your batteries by preventing overcharging or excessive discharge, making it an invaluable asset for your solar power systems, robotic cleaners, and more
• Not just a Coulomb Counter, our device doubles as a voltmeter and ammeter, offering comprehensive battery diagnostics. Its user-friendly, plug-and-play interface is designed for efficiency and ease. Packing List:Multi-function electric meter+100A shunt+USB data cable 2m long+Mounting screws+Instruction manual