The AMPTRON® battery monitors are a high precision current type battery capacity meter (also known as a coulometer) designed to monitor the performance of battery systems. The unit continuously measures voltage, charge and discharge current, energy consumed, and battery capacity (State of Charge). This information leads to more efficient use of the battery system. The products can monitor most battery types, including Lithium-ion, Lithium Iron Phosphate, Lead Acid and Nickel-metal Hydride batteries with a working voltage from 8V to 80V. The Smart battery monitor model also provides a convenient Bluetooth interface for remote monitoring of your system. Includes 500Amp shunt, digital display 3m cable & user manual.