No one sets out on a road trip without checking the level of gas in their fuel tank. By the same logic, you should always take note of your battery charge before connecting any loads. Victron Energy battery monitors make it easy to assess the state of your batteries. Colorado Standby offers a great Victron Energy selection from their BMV-700 Series, including the BMV-712 Smart Monitor.
The basic function of a battery monitor is easy to understand for those familiar with off-grid applications: it is to calculate the consumption of amp-hours and provide information about how much charge is left on a battery. Additionally, these monitors can offer insight into voltage and current consumed, plus battery temperature. These compact devices from Victron are fully programmable. They can sound alarms or even switch critical loads to a generator when necessary, preventing any damaging loss of power.