350A Battery Monitor with Shunt and Coulometer

SKU: AT-COMBOMON-350A-8-80-V03


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The AMPTRON® battery monitor is 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 remaining battery capacity (State of Charge). This information leads to more efficient use of the battery system.

The product can monitor most battery types, include Lithium ion, Lithium Iron Phosphate, Lead Acid and Nickel-metal Hydride batteries with a working voltage from 8V to 80V.

The monitor can monitor large continuous current flows of up to 350A continuous, and up to 500A for 10s.

The monitor combo system kit is easy to install DIY. The meter is suitable for use in mobile and portable powerpacks and equipment; cars; boats; recreational vehicles; Offroad and 4×4 vehicles; e-bikes and many other applications. Here is a list of product features:-
Battery status.
Forward (positive) and Reverse (negative) current flow at the same time.
Consumed energy (as Amp hours).
Remaining battery capacity (as a % or Amp hours)
Dual display for Voltage (V)
Current (A), Power (W)
Ampere-hour (Ah),
Working Hours (H), Charging Time, Discharging Time
Battery capacity (%)
Flexible on-line calibration function.
Low power consumption.
No external power required when monitoring above 10V

Monitor Specifications:

350A Coulometer – Battery monitor with shunt
Working Voltage
8V to 80V
Can tolerate short voltage spikes of up to 120V
Maximum current
350A continuous and 500A for up to 10s
Working dissipation
10mA to 12mA
Standby dissipation
0.5mA to 0.8mA
Sleep dissipation
50uA to 60uA
Voltage accuracy
​Current accuracy
​Capacity accuracy
​Backlight on current
40mA to 50mA
​Backlight off current
30mA to 40mA
Comms Cable Length
8M Cable optional extra
​Preset capacity value
0.1Ah to 999Ah
​Temperature range
0℃ to 45​℃
Protection Category
Not suitable for outdoor use

WARRANTY: 2 years

AMPTRON Battery Monitor – Installation & User Manual

Please click and read Monitor Warranty Policy