Mastervolt BattMan Pro Battery Monitor - 12/24V

BattMan Pro is a compact, two‑output 12/24 V DC battery monitor engineered for marine, RV, and light industrial power systems. It provides real‑time voltage, current, and amp‑hour data, plus remaining runtime and a historical log of critical battery events. It warns when the battery bank requires charging to prevent deep discharge and stores status events for later reference. A large, splash‑proof display (IP65) with a built‑in power bar ensures visibility in challenging environments.

Key capabilities include:

• Number of battery outlets: 2 (service and starter)
• Display/readout: voltage, current, amp-hours, battery capacity in %
• Languages on display: Universal
• Dimensions: Ø 64 mm, depth 79 mm; shunt 87 x 45 x 35 mm
• Weight: 0.15 kg
• Supply voltage: 9–35 V; voltage range: 0–35 V
• Current measurement: 0–500 A; current accuracy ±0.4%
• Shunt specification: 500 A / 50 mV (service set)
• Backlight current consumption: 12 V 8 mA (off), 30 mA (on); 24 V 6 mA (off), 18 mA (on)
• Voltage resolution: 0.1 V; voltage accuracy: ±0.3%
• Battery alarm contact: Yes, potential-free
• Remaining time indication: Yes
• Historical data: Yes
• MasterBus compatibility: No
• Connection: 6-wire cable required; modular cable not necessary

Safety features and certifications

IP65 splash‑proof display and enclosure protect against water and dust exposure in harsh operating conditions. A Prop 65 warning applies: P65Warnings.ca.gov. The device provides a remote alarm option via the battery alarm contact.

Installation and maintenance

• Mount in accessible location with clearance for the display and shunt
• Ensure proper wiring: 6‑wire connection to the monitor; correct shunt mounting
• Regularly verify readings and inspect cable insulation during routine maintenance

Documentation

Includes Owner's Manual (pdf) for setup, operation, and troubleshooting.

BattMan Pro Battery Monitor - 12/24V

Battery monitor, 12/24 V DC with large, splash-proof display (IP65) and power bar. Displays remaining time and stores special battery status events.

An affordable battery monitor that does exactly that: providing critical information about the status of your battery bank under all circumstances. Moreover, it will warn you when your battery bank is empty. Also displays the remaining time until your battery needs to be charged and stores special battery status events.

General Specifications:

• Number of battery outlets: 2; service (fully), starter (voltage)
• Display/read-out: Voltage, current, amp-hours, battery capacity in %
• Languages on display: Universal
• Built-in depth: 72.5 mm/2.9 inch
• Dimensions: Ø 64 mm, depth 79 mm
• Dimensions shunt, height x width x depth: 87 x 45 x 35 mm/3.4 x 1.8 x 1.4 inch
• Weight: 0.15 kg/0.3 lb

Technical Specifications:

• Max. Ah capacity: 9999 Ah
• Supply voltage: 9-35 V
• Voltage range: 0-35 V
• Current consumption (backlight off): 8 mA/12 V, 6 mA/24 V
• Current consumption (backlight on): 30 mA/12 V, 18 mA/24 V
• Voltage resolution: 0.1 V
• Voltage accuracy: ± 0.3%
• Shunt specification: 500 A/50 mV (service set)
• Current measurement range: 0-500 A
• Current accuracy: ± 0,4 %
• Battery alarm contact: Yes, potential free
• Remaining time indication: Yes
• Historical data: Yes
• MasterBus compatible: No
• Connection cable (6-wire) necessary: Yes
• Modular cable necessary: No

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.