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NASA Battery Monitor BM-1 Compact / white

SVB item number: 51205
View Ratings (46) Questions (0)
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The BM-1 Compact is designed to monitor performance of 12 volt battery systems with capacities of up to 650 Amp hours. It is supplied complete with a precision 100 Amp shunt and a prefabricated cable.
Product details
only  €169.95
3 | in stock
pcs.
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Available variants

BM-1 Compact Battery Monitor / gray
Clipper Battery Monitor BM-2
Clipper Battery Monitor BM-1
BM-1 Compact Battery Monitor / gray
NASA MARINE BM-1 Compact Battery Monitor / gray
only €169.95
VAT inc., ex-works
To product
Clipper Battery Monitor BM-2
NASA MARINE Clipper Battery Monitor BM-2
only €185.95
VAT inc., ex-works
To product
Clipper Battery Monitor BM-1
NASA MARINE Clipper Battery Monitor BM-1
only €149.95
VAT inc., ex-works
To product

At a glance!

12 V
12 V
with display
with display
White
White
Surface mounted
Surface mounted
by Uwe S.
The product is very well made and the delivery includes all necessary cables including connection shunt / battery. \ R \ n
Read all product reviews
by Pfr. Holger G.
Great device. Easy to install. Works very precisely and does exactly what it should!
Read all product reviews

Product data

  • SVB item number 51205
  • EAN 609722871266
  • Description NASA-Clipper Battery Monitor BM-1 Compact
  • Operating voltage 12 V
  • Battery type Lead-Acid, AGM, Gel
  • Battery Capacity 600 Ah
  • Display options Battery voltage, Battery power, Ampere hours, State of charge
  • Separate starter battery input No
  • Shunt included Yes
  • Shunt size 100 A
  • Bluetooth No
  • NMEA2000 No
  • with display Yes
  • Colour display No
  • Backlight Blue
  • Round instrument No
  • Housing colour White
  • Installation type Surface mounted

Product details

The BM-1 Compact is designed to monitor performance of 12 volt battery systems with capacities of up to 650 Amp hours. It is supplied complete with a precision 100 Amp shunt and a prefabricated cable assembly to enable simple installation. The unit continuously monitors voltage, current (charge or discharge), the battery‘s state of charge and the time to charge or discharge. This information leads to more efficient use of the battery, which can enhance the battery life and reduce the risk of failure. Available with grey or white housing.

  • supply voltage: 8 - 16 Volts DC
  • supply current: 3 milliamps
  • battery capacities: 5 - 650 Amp Hour
  • capacity is shown: in 1.0 Amp Hour steps
  • charge current: 100 Amps maximum
  • currents are shown: for values of 0 - 9.9 Amps in 0.1 Amp steps, for values of 10 - 100 Amps in 1.0 Amp steps
  • shunt: standard 50 millivolt @ 100 Amp
  • connections shunt 6 mm pins
  • connections measuring lines 4 mmm screws
  • dimensions: 125 x 62 x 23 mm

Features

Discover the features that make this product stand out. From technical details to special functions – we’ve summarized all the key information for you.

Operating voltage
12 V
with display
Housing colour
White
Installation type
Surface mounted
51205 .jpg
51205-4.jpg
51205-2.jpg

Documents

en-flag Manual
PDF (3,89 MB)
en-flag Short manual
PDF (1,47 MB)

Product safety

Contacts

What other SVB customers have to say

100% real reviews

46 customer reviews

4.5 (out of 46 ratings)
5 Stars
(27)
4 Stars
(17)
3 Stars
(1)
2 Stars
(0)
1 Stars
(1)
All reviews Latest ratings 5
4
3
1
Gary M.
by Gary M. Flag of Spain 10/6/2025 Verified purchase Variant: 14719
Battery Monitor (NASA BM-2)
Perfect for what I was wanting- Large screen, good visibility and simple to operate.
Product cable lengths and shunt are also good.
Was going to installwire it up myself, but it's not as simple as the instructions advise- so got an electrician to install it and is all OK.
However, getting it shipped to Greece within a reasonable time, was very expensive.
  • Advantages
  • Operation
  • Range of functions
  • Delivery contents
  • Mounting/Installation
  • Configuration
  • Readability
  • Compatibility
James R.
by James R. Flag of France 7/11/2025 Verified purchase Variant: 51204
Translated automatically
Show original text
Perfect
Fast delivery, easy installation, works great
  • Advantages
  • Operation
  • Range of functions
  • Delivery contents
  • Price/performance ratio
  • Mounting/Installation
  • Configuration
  • Readability
  • Compatibility
JEAN L.
by JEAN L. Flag of Martinique 1/28/2025 Verified purchase Variant: 14711
Translated automatically
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No surprises
No surprise, it was a replacement, and everything is working fine again.
Wolfgang S.
by Wolfgang S. Flag of Germany 10/28/2024 Verified purchase Variant: 14719
Translated automatically
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battery monitor
Unfortunately, I cannot yet report on my experiences as I have not yet installed the battery monitor. Questions were quickly answered by the product manager at SVB, who was very competent. It is fun to work with professionals.

Unfortunately, there is no user manual in German, but that is also the only small criticism.

As soon as I have experience, I will report back.
Peter K.
by Peter K. Flag of Germany 8/5/2022 Verified purchase Variant: 14719
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The battery monitor is a leap in quality in on-board electronics
Finally no longer dependent on the voltmeter to assess the condition of the on-board electronics. You can see the consumption of each switched-on power consumer with an accuracy of 0.1 A and can thus control your consumption and charging behavior (by the machine) on the basis of safety, especially with regard to the consumption of the cooling compressor, if you have no access to shore power. To connect the starter battery, you have to look at the enclosed English instructions. Before that I was very unsure about the connection of a shunt, i.e. I imagined it to be complicated. But he is not. Under certain circumstances, however, you may need a piece of battery earth cable (at least that's how it was on my boat) so that the connection of the service and starter battery works as shown in the circuit diagram. But you can get that in auto parts stores. You can look at the operating instructions at the SVB beforehand to check that you understand the circuit diagram sufficiently.
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Comparison

Image of Battery Monitor BM-1 Compact / white
NASA MARINE
Battery Monitor BM-1 Compact / white
Image of BM-1 Compact Battery Monitor / gray
NASA MARINE
BM-1 Compact Battery Monitor / gray
Image of Clipper Battery Monitor BM-2
NASA MARINE
Clipper Battery Monitor BM-2
Image of Clipper Battery Monitor BM-1
NASA MARINE
Clipper Battery Monitor BM-1
Availability / Price
only €169 95
VAT inc., ex-works
Only 3 in stock
only €169 95
VAT inc., ex-works
8 left in stock
only €185 95
VAT inc., ex-works
Only 3 in stock
only €149 95
VAT inc., ex-works
Only 3 in stock
Item no.
51205
51204
14719
14711
Customer ratings
(46)
(46)
(33)
(23)
Description
NASA-Clipper Battery Monitor BM-1 Compact
NASA BM-1 Compact Battery Monitor
NASA-Clipper Battery Monitor BM-2
NASA-Clipper Battery Monitor BM-1 / black
Installation depth
 
 
40 mm
40 mm
NMEA2000
Bluetooth
Battery type
Lead-Acid, AGM, Gel
Lead-Acid, AGM, Gel
Lead-Acid, AGM, Gel
Lead-Acid, AGM, Gel
Battery Capacity
600 Ah
600 Ah
999 Ah
600 Ah
Installation type
Surface mounted
Surface mounted
Recessed
Recessed
Housing colour
White
Grey
Black
Black
Installation height
 
 
67 mm
67 mm
Installation width
 
 
87 mm
87 mm
Operating voltage
12 V
12 V
12 V
12 V
Colour display
Backlight
Blue
Blue
Red
Red
with display
Display options
Battery voltage, Battery power, Ampere hours, State of charge
Battery voltage, Battery power, Ampere hours, State of charge
Battery voltage, Battery power, Ampere hours, State of charge
Battery voltage, Battery power, Ampere hours, State of charge
Round instrument
Shunt included
Shunt size
100 A
100 A
199 A
100 A
Separate starter battery input

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NASA Battery Monitor BM-1 Compact / white
View Ratings (46) Questions (0)
€169.95
VAT inc., ex-works