INTRODUCTION
WELCOME
Welcome to the AMPS Owners Handbook for the product BM2, the Battery Monitor.
Please take your time to read and fully understand the contents of this Handbook. These guidelines are
developed with your safety and the products performance in mind and failure to follow or understand these
guidelines may lead to voiding the product warranty or even leading to damage or injury for you or your setup.
If you are unsure of any step or guideline then please consider reaching out to AMPS via our web contact form or
our phone service and we shall offer our support.
Thank you for joining AMPS and we hope to serve your travels well.
The battery monitor is an extremely accurate meter that allows the user to check the state of charge of a battery
bank. The BM2 measures current flowing in / out of your battery(s), the Ah capacity remaining and state of
charge. It also displays the voltage of the battery that powers the BM2. The APP additionally shows Wattage
figures, temperature of shunt and cycle count.
Throughout this manual we will make reference to this product as the ‘BM2’. The terms ‘12V’ or ‘24V’ are nominal
voltage ranges, rather than specific voltages.
This manual must be read throughout before installing this electronic device. Do not lose these instructions -
keep them safe. The most up to date instructions can be found on sterling-power.com. Please refer to the latest
instruction manual before contacting AMPS. At AMPS, we endeavour to include all of the product information
that we can think of into the manual.
Installation of the electronic device must be carried out by qualified and trained personnel only. The personnel
must be familiar with the locally accepted guidelines and safety measures.
Your safety is AMPS top priority. Please follow all precautions to keep yourself safe. If you believe your unit
requires repair then please contact AMPS or your distributor. Do not attempt to service the unit yourself.
This manual has been written predominantly with 12V nominal voltages in mind. But it shall display up to 80VDC.
Welcome
BM2
Product Code Understanding
Using this Handbook
Safety
12V -80V Calculations
Specifications
Standard in the box
INTRODUCTION
02
BM2
Working Voltage Range 8V-80V
Wattage consumption 0.144W (12mA at 12V)
Standby consumption 0.006W (0.5mA at 12V)
Quiescent / Sleep current 0.0006W (50uA at 12V)
Capacity accuracy +/-0.5%
Voltage accuracy +/-0.5%
Current accuracy +/-0.5%
Capacity Ah setting up to 9999Ah | 9999Ah (app)
Weight 500.0g (Shunt + remote)
BM2
BM2
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