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Click here for: VAH60 Single Bank Volts/Amps/Amp-Hour Monitor

Click here for: Larger 110mm x 110mm VAH110 Three Bank Volts/Amps/Amp-Hour Monitor

CruzPro VAH65 Three Bank
Monitor with Alarms and NMEA 0183

Download User's Manual PDF

NEW - Square VAH65 VAH65 Thee Bank Volts/Amps/Amp-Hour 		Monitor

NEW - Round VAH65 VAH65 Thee Bank Volts/Amps/Amp-Hour 		Monitor

CE Certified for Europe

CE Certified

Waterproof front case


Operating Voltage:
9.5 - 33.0 VDC
(Higher voltage versions available by special order)

Current Drain:
0.018 amps nominal

4 digit LCD, 5 levels of backlighting

Volts (for three batteries), Amps, Amp-Hours, percentage charge remaining for house bank

9.5 to 33.0 VDC, -450 to +450 Amps, 0 to 3000 Amp-Hours, 0-100% charge remaining

Battery Size:
100 to 3000 Amp-Hours, programmable

Data Ouput:
NMEA 0183 serial 4800 BAUD, $IIXDR,V; $IIXDR,A; $IIXDR,G
Programmable as an external alarm output

Built-in 85 dB audible alarm. Settable high and low voltage alarms and low charge alarm.

2.5" dia X 4.1" deep (61mm x 104mm)

2-1/8" (55mm) round hole

See the Practical Sailor product evaluation on our amp-hour monitors...
Battery Monitor Evaluation/Comparisons - Click Here


The VAH65 Battery Monitor provides accurate low cost digital instrumentation for three banks of batteries between 9.5 and 33 Volts. The VAH65 displays battery voltage for three banks and charging or discharge current and tells you how much battery capacity has been consumed and how much is remaining in your main house bank. It keeps track of all current entering and leaving the battery and applies the appropriate Peukert's and efficiency factors. You can set Low and High voltage alarms and Low Amp-Hours Remaining alarms. When activated, the VAH65 built-in 85 dB alarm will sound and the display will flash. Five levels of backlighting can be selected and all set-up, calibration constants and alarm values are saved to non-volatile memory. The VAH65 comes complete with a calibrated 450 Amp shunt to measure current.

All constants and calibrations are pre-set during manufacture but you may alter these settings to suit your particular needs. Calibrations can be altered using the front-panel switches for: Battery voltage, battery current, charge efficiency, Peukert's exponent, battery bank capacity (in amp-hours), low and high voltage alarms and low amp hours remaining alarm value. An auto-zero function is easily initiated from the front panel to zero the ammmeter.

With a press of the button you can display three different battery voltages (9.5 to 33.0 VDC each), current being delivered to or draining from the main house bank (-450 to +450 Amps), the number of amp-hours remaining in the house bank (0 to 3000 Amp-Hours) or the percentage charge remaining in the house bank (0 to 100%).

High volts, Low volts and Low Amp-Hours Remaining alarms can be independently set using the front panel switches and all alarms can be turned ON/OFF simultaneously with the press of a single key.

The VAH65 draws only 0.017 amps and is designed to be left on continuously. 5 levels of backlight (including OFF) can be selected from the front panel and is saved to non-volatile memory.

The VAH65 outputs Voltage, Amps and Amp-Hours Remaining on the standard NMEA 0183 serial data line at 4800 BAUD.

This ASCII information can be used to log performance or repeat the display information at a remote location on the matching CruzPro RP60 and/or RP110 data repeaters (see www.cruzpro.com/rp60.html, www.cruzpro.com/rp110.html and www.cruzpro.com/maxrp110.html). If NMEA 0183 serial data is not required, then the output terminal can be programmed as an external alarm output pin.

VAH65 Connection Diagram

VAH65 Connection Diagram

Connecting the CruzPro ER-1 External Relay module to the NMEA 0183/External Alarm Output

Click here to go to ER-1 page
ER-1 External Relay Connection Diagram
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