EJBMS Plus is an app provide more than just a display of your system’s charge level. They also give you historical and real-time data on voltage, power usage, temperature, and other factors that can help you improve your battery usage and charging. For example, you can use the data from your battery monitor to choose the appropriate time to switch your RV’s fridge from battery to propane power.
Even with the additional cost of electronics, EJBMS Plus is a BMS with active cell balancing, which ensures good battery performance, extends the battery life, and maximizes the battery’s potential.

In conclusion, choosing a EJBMS with active cell balancing is a wise decision as it ensures that each cell is charged and discharged properly, resulting in better battery performance and extended battery life. Passive cell balancing is a cost-effective method, but its cons make active cell balancing a more efficient and reliable technique.