NASA Clipper Battery Monitor BM-1

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NASA MARINE Battery Monitor BM-1 Compact / white

only €169.95

Fully fulfills my imagination. Even more: contrary to the description and the very good instructions, this device can simultaneously display the voltage of another battery. That's the orange cable. But just the tension. That's enough for a battery that is otherwise not continuously charged / discharged. As a rule, this is the starter battery. The charging / discharging currents are then calculated for the consumption battery. BM-1 is easy to use and pretty accurate.

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At a glance!

by Peter-Alexander W.

easy installation, easy operation

by Rainer T.

Excellent .... Superior to Victron

by Jean François B.

Quick delivery to my desk.Straight forward installation. Now the instruments tells exactly what is going on with my batteries. I have two set of batteries and one at the time is used for all use including starter. That schema should be added in the instructions.

by Jaakko P.

Battery Check Great product to know in real time the charge of the battery!

by Alain P.

Product data

SVB item number 14711
EAN 609722871198
Description NASA-Clipper Battery Monitor BM-1 / black
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 Yes
Shunt included Yes
Shunt size 100 A
Bluetooth No
NMEA2000 No
with display Yes
Colour display No
Backlight Red
Round instrument No
Housing colour Black
Installation type Recessed
Installation width 87 mm
Installation height 67 mm
Installation depth 40 mm

Product details

The BM-1 is designed to monitor performance of 12 volt battery systems with capacities of up to 600 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.

Dimension: 110 x 110 x 27mm / compact version: 110 x 110 x 27 mm. Supply voltage: 8 - 16 Volts DC

Specifications:

supply voltage: 8 - 16 volts DC
supply current: 3 milliamps
battery capacities: 5 - 600 Amp Hour
load current: 100 Amps maximum
charge current: 100 Amps maximum
shunt: standard 50 millivolt / 100 amp
displayed starter battery voltage

Operating voltage

12 V

with display

Housing colour

Black

Installation type

Recessed

Documents

Manual

PDF (177,05 KB)

Product safety

What other SVB customers have to say

100% real reviews

23 customer reviews

4.6 (out of 23 ratings)

5 Stars

(16)

4 Stars

(6)

3 Stars

(0)

2 Stars

(1)

1 Stars

(0)

100% recommend SVB

by James R.

7/11/2025 Verified purchase Variant: 51204

Perfect

Fast delivery, easy installation, works great

Advantages
Operation
Range of functions
Delivery contents
Price/performance ratio
Mounting/Installation
Configuration
Readability
Compatibility

by JEAN L.

1/28/2025 Verified purchase Variant: 14711

No surprises

No surprise, it was a replacement, and everything is working fine again.

by Alain P.

10/4/2018 Verified purchase Variant: 14711

Battery Check

Great product to know in real time the charge of the battery!

by Frank B.

5/3/2017 Verified purchase Variant: 51204

The installation is absolutely unproblematic and is quite fast. The case of the device builds pleasingly small and it is not a cutout but only a 5mm hole for the cables necessary. The device seems to be very precise ...

by Maarten V.

3/16/2017 Verified purchase Variant: 51204

Clipper Battery Monitor BM-1

I am installing the product. I do not yet know if the meter is working properly

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Customers ask customers

Technical question

Jesper B. | Oct 17, 2018

Can I extend the wiring? It’s 5 meters and need a few extra meter. If yes: witch size of cable and will it defect the monitor?

Answer

Try W. | Oct 29, 2018

Hi Jesper, I would like to answer your question with "maybe" because I've never tried to prolong the harness but I imagine that it would be possible. There is only low current on the wires and for prolonging the harness I would take 1 or 1,5 mm² cable cross section. But first let's have a look on how shunt and display are working: Current flowing through the shunt creates a very small voltage drop there, which is proportional to the current height. This very small voltage is led via 2 wires to the display and there it is used for current measurement. If these two wires would be very long, there would be two risks. 1. A voltage drop but with 1 or 1,5 mm² wires that shouldn't be a problem. 2: Interference signals could be induced into the long measuring wires and lead to false display values. Some manufacturers minimize the risk of interfering signals by recommending the use of twisted pair wires. In the wiring diagram you will see at the shunt three: yellow, white and black. The black one is MINUS for the display, yellow and white are the two measuring wires. read the manual careful! There is a note which says: Black and white wires may only be combined at the battery-connection-side of the shunt and nowhere else. My advice: keep distance between the measuring wires and other cables or electrical stuff like powerful motors, pumps, etc.. I'm looking forward for your success report. Good Luck!

Comparison

NASA MARINE

NASA MARINE

BM-1 Compact Battery Monitor / gray

NASA MARINE

Battery Monitor BM-1 Compact / white

Availability / Price

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