Victron energy Blue Power BMV-602, Manual

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1 INTRODUCTION
Victron Energy has established an international reputation as a leading
designer and manufacturer of energy systems. Our R&D department is
the driving force behind this reputation. It is continually seeking new
ways of incorporating the latest technology in our products. Each step
forward results in value-added technical and economical features.
1.1 Victron Energy battery monitor basics
The Precision Battery Monitor is a device that monitors your battery
status. It constantly measures the battery voltage and battery current.
It uses this information to calculate the actual state of charge of your
battery.
The BMV is also equipped with a potential free contact. This can be
used to automatically start and stop a generator, or signal alarm
conditions.
1.2 Why should I monitor my battery?
Batteries are used in a wide variety of applications, mostly to store
energy for later use. But how do you know how much energy is stored
in your battery? No one can tell by just looking at it.
Battery technology is often oversimplified, but some basic battery
knowledge and good monitoring is essential if you want to enjoy
maximum life from your expensive batteries. The lifetime of batteries
depends on many factors. Battery life gets reduced by under-charging,
over-charging, excessively deep discharges, discharges which go too
fast, and a too high ambient temperature. By monitoring your battery
with an advanced battery monitor like the BMV, important feedback is
given to the user so that remedial measures can be taken when
necessary. This way, by extending the battery life, the BMV will quickly
pay for itself.
1.3 How does the BMV work?
The capacity of a battery is rated in Amp hours (Ah). For example, a
battery that can deliver a current of 5 Amps for a period of 20 hours is