Details
A simple microprocessor based master unit for controlling LFP batteries.
The EV Power Battery Management System (BMS) is designed for Lithium Iron Phosphate (LiFePO4, LFP) batteries of capacity 40-400Ah. These cells are generally used in applications where light weight and high power are required.
The mcu-micro-08 is a simple bare PCB microprocessor based battery management master control unit. It is designed to operate in unison with EV Power cell modules using the EV Power one-wire NC interface. The system is designed to prevent over-discharge and overcharge of LFP batteries. It can directly control a charger and/or load via connected relays.
The mcu-micro-08 comes in two versions each with different programming. Version A is for use with a three wire “latching” charge/discharge relay. Version B is for use with normal relays/contactors and solid state relays for separately controlling charge and discharge sources.
Unlike regular relays, three wire latching relays offer the advantage of drawing no power when active. Large charge/discharge currents can be directly controlled in this way without significant parasitic power being drained by the BMS itself. This is an EV Power industry first for managing LFP batteries.
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