In this video I walk through the Victron Smart Lithium batteries we have recently fitted onboard and why we upgraded. I also try and explain the Victron Monitoring System we have onboard called VRM. It allows us to monitor Spirit and her systems while away from the boat. The VRM allows us to keep a good eye on our onboard electronics, monitoring everything from production to consumption to temperatures and tank levels. I make a few mistakes with the wording I use so apologise for that but hopefully this will give people an idea to how Spirits electrical system works.