With my battery upgrade, one of the most important pieces was the battery monitor so that I could quickly and accurately see the state of my batteries. The Victron BMV-702 with Bluetooth Dongle fit the bill. I love the Bluetooth/phone integration so much that I never bothered to install the monitor’s physical display.
The Victron BMV-712 is the same thing but has the Bluetooth module built-in. Had it been readily available when I purchased, I would have gotten it instead.
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