EV Power Australia for Lithium Batteries and Chargers

BMS Headboard for Normal Relay

Availability: In stock

Excl. Tax(GST): $50.00 Incl. Tax(GST): $55.00

Quick Overview


A simple microprocessor based battery control unit for protecting LFP batteries.


- Simple to install and use, microprocessor control.
- 12V power input
- Prevents overcharge and over-discharge of LFP batteries.
- Version A for three wire latching relays, Version B for normal and Solid State relays (SSRs)
- Uses the unique EV Power developed one-wire NC current loop interface.
- User programmable using a standard three wire interface and PICAXE BASIC
- Can directly control relays with 12V coils requiring up to 2A hold current.
- Designed and manufactured in Australia


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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.

Additional Information

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Download Attachment
pdfMICRO-08 Manual(537.49 KB )Download