Masterlink BTM-III

A Mastervolt battery monitoring panel brings an end to nasty surprises, like a sudden shortage of battery power. 

The Masterlink BTM-III battery monitor provides an accurate indication of the current, amperage, remaining time and remaining capacity of battery bank 1, and the current and estimated capacity of battery banks 2 and 3. The built-in microprocessor calculates the remaining capacity and stores historic data. 

The Masterlink BTM-III includes ten languages: English, French, German, Spanish, Italian, Dutch, Norwegian, Danish, Swedish and Finnish.

Product code: 70403163
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General specifications
Number of battery outlets 3 (service, starter & bowthruster)
Display/read-out voltage, current, Amp-hours, time remaining, battery capacity in %voltage, current, amp-hours, time remaining, battery capacity in %, special battery status events
Languages on display English, Dutch, French, Spanish, German, Danish, Finnish, Norwegian, Italian, Swedish
Built-in depth incl./excl. cover box 55/40 mm
2.2 inch
Dimensions, hxwxd 65 x 120 x 40 mm
2.6 x 4.7 x 1.6 inch
Dimensions shunt, hxwxd 84 x 44 x 44 mm
3.3 x 1.7 x 1.7 inch
Weight 0.25 kg
0.6 lb
Technical specifications
Max. Ah capacity 9999 Ah
Supply voltage 8-50 V
Voltage range 7-35 V
Current consumption (backlight off) 28 mA/12 V, 16 mA/24 V
Current consumption (backlight on) 100 mA/12 V, 50 mA/24 V
Voltage resolution 0.01 V
Voltage accuracy ± 0.6 %
Shunt specification 500 A/50 mV (service set)
Current measurement range 0-500 A (optional 1000 A)
Current accurancy ± 0,8 %
Battery alarm contact yes, open collector
Remaining time indication yes
Historical data yes
MasterBus compatible no
Connection cable (6-wire) necessary no
Modular cable necessary no



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Drawings (dimensions)

Dimensions of the cover box for Masterlink remote panels (zipped DXF and PDF-file)


Installation manuals

Masterlink BTM-III

Guide for Quick installation and Basic operation of the Masterlink BTM-III (English)


User manuals

Masterlink BTM-III

Users Manual Masterlink BTM-III (English)


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