EPEVER Tracer Series MPPT setup guide for Roamer LiFePO4 lithium batteries

Edited

If you've got yourself an EPEVER Tracer MPPT controller, here's Roamer's guide to setting it up with our batteries.

For this guide, you will need:

  • EPEVER MPPT Controller

  • EPEVER MT50 Display / Interface

Getting into the settings

With your controller all wired up, and the MT50 display connected, press esc.

Scroll down to 4. Control Para. and press OK.

Press OK again to highlight the Battery Type and use the up/down arrows to change this to User.

Press the right arrow.

Input the Ah capacity of your battery using the up/down and left/right buttons. If your battery is 105Ah for example, this should read "0105AH".

Press the right arrow.

Set the Temp Comp. Coif to 0 mv/ºC/2V. This isn't required for LiFePO4 batteries.

Press the right arrow.

You can keep Rated Voltage set to Auto.

Press the right arrow.

Scroll through the next few menus, inputting the values in the table below.

Most of the settings below are only applicable if using the load terminals of the MPPT, but are given here anyway as it can be confusing otherwise at first glance.

The important ones relevant to charging are highlighted in bold.

BATTERY TYPE

(Sealed / Gel / Flooded / User)

User (Roamer)

Over Voltage Disconnect Voltage

16.0V /16.0V / 16.0V / 9~17V

14.6

Charging Limit Voltage

15.0V / 15.0V / 15.0V / 9~17V

14.2 (SMART3 or older)

14.4 (SMART4)

Over Voltage Reconnect Voltage

15.0V / 15.0V / 15.0V / 9~17V

14.2 (SMART3 or older)

14.4 (SMART4)

Equalize Charging Voltage

14.6V —— 14.8V / 9~17V

14.2 (SMART3 or older)

14.4 (SMART4)

Boost Charging Voltage

14.4V / 14.2V / 14.6V / 9~17V

14.2 (SMART3 or older)

14.4 (SMART4)

Float Charging Voltage

13.8V / 13.8V / 13.8V / 9~17V

13.5

Boost Reconnect Charging Voltag

13.2V / 13.2V / 13.2V / 9~17V

13.3

Low Voltage Reconnect Voltage

12.6V / 12.6V / 12.6V / 9~17V

11.5

Under Voltage Warning Reconnect Voltage

12.2V /12.2V / 12.2V / 9~17V

12.2

Under Voltage Warning Voltage

12.0V / 12.0V / 12.0V / 9~17V

12

Low Voltage Disconnect Voltage

11.1V / 11.1V / 11.1V / 9~17V

11

Discharging Limit Voltage

10.6V / 10.6V / 10.6V / 9~17V

10.5

Equalize Duration

120 min —— 120 min / 0~180 min

0

Boost Duration

120 min / 120 min / 120 min / 10~180 min

60