Mastervolt 70405060 BattMan Lite 12/24V Battery Monitor with Shunt

The Mastervolt BattMan Lite (70405060) is a compact, easy-to-use battery monitor designed for 12V and 24V DC electrical systems in marine, RV, and mobile power applications. It delivers real-time battery bank status at a glance, giving you the critical data needed to avoid unexpected power loss on the water or on the road.

Featuring a large, splash-proof IP65-rated display with an integrated power bar, the BattMan Lite monitors two battery outlets simultaneously — providing full monitoring of your service battery bank and voltage monitoring for your starter battery. A built-in low-battery alarm alerts you before your battery bank is fully depleted, helping prevent being stranded without power.

Key Features:

• Compatible with 12V and 24V DC systems; supply voltage range 9–35V
• Large splash-proof display with IP65 weather resistance
• Monitors 2 battery outlets: service battery (full monitoring) and starter battery (voltage)
• Display readout: voltage, current, amp-hours, and battery capacity (%)
• Universal display language — no language configuration required
• Low battery bank alarm with potential-free alarm contact
• Includes 500A / 50mV shunt for current measurement
• Current measurement range: 0–500A with ±0.4% accuracy
• Voltage resolution: 0.1V with ±0.3% accuracy
• Maximum amp-hour capacity: 999 Ah
• Low current draw: 8mA at 12V (backlight off)

Dimensions & Mounting:

• Display unit: Ø 64 mm (2.5 in) diameter, 79 mm (3.1 in) depth — round panel-mount design
• Built-in depth: 72.5 mm (2.9 in)
• Shunt dimensions (H x W x D): 87 x 45 x 35 mm (3.4 x 1.8 x 1.4 in)
• Weight: 0.15 kg (0.33 lb)

The BattMan Lite includes the 500A shunt and all necessary hardware for installation. It is an ideal entry-level battery monitor for sailors, boaters, and RV owners who need reliable, accurate battery state-of-charge information without complexity.