How To

Inverter Operation: Lithium Ion Power Systems

Does you van have an AGM power system with a Magnum ME-RC50 control panel? If so, this post will give you an overview of how to use it during your adventures on the road. Check out our video, or read below!

If you have any questions about the procedures covered in this video, please reach out to our service and warranty department at [email protected].

Outside Van is not responsible for damage resulting from improper maintenance. This serves only as a guide to basic procedures.

 

 

The Magnum Energy inverter converts your lithium ion battery’s DC power into AC power, so you can use appliances that plug into 110v outlets. It also provides vital information about your battery. Let’s dive into the control panel:

 

Default Display Screen: The top row of your screen tells you the operation of your inverter. If the inverter is doing nothing, it reads “Off”. The bottom row shows your battery’s current voltage and amps going in or out. To see other specs about your battery usage, you’ll use the “Meter” button.

Meters: Press “Meters” and it will display “01 DC Meters”, then press the knob to confirm. You will now see “01A DC Volts”. This shows your battery’s current voltage. Dial once more to the right to “01B DC Amps”. This shows how many amps an appliance is drawing while the inverter is being used to power an appliance.

Press the knob to go back to the main Meters menu. Dial to the right to “02 AC Meters”, and press to confirm. If you’re plugged into shore power, this will show you how much amperage is coming in through that.

Press the knob to go back to the main Meters menu. Dial to the right where you’ll see “03 Timers” and click to confirm. This menu is for diagnostics use by an Outside Van or Magnum Energy technician.

Press the knob again to go back to the main Meters menu. Dial to the right to “04 AGS Meters”, and press to confirm. This button is to be used with a generator. At Outside Van our power systems aren’t built to charge with generator, but if you want to use a one, please do the proper research prior to use.

Press the knob again to go back to the main Meters menu. Dial to the right to “05 BMK”, and press to confirm. You will now see “05A BMK Status”. This will show the status of the battery. The screen reads “Ready”, meaning the control panel is detecting the Battery Monitor Kit. Turn the knob to the right once more to “05B Battery SOC” and you’ll see the state of charge, which is displayed as a percent out of 100. Turn the knob to the right once more to “05C DC Volts-BMK”, and you’ll see the amount of volts going in or out. Turn the knob to the right once more to “05D DC Amps-BMK”, and you’ll see the amount of amps going in or out. As you can see, right now, the overall electrical system is losing 0.4 amps. That’s because, even though you’re not running any systems in your van, like a fridge or lights, your control panels have diagnostic programs that are functioning in the background at all times. Because of this, you can expect to lose about 2% of your battery per day.

If you click the knob again, dial to the right and you’ll see menus for “06 ACLD Meters” and “07 PT Meters” – these are not necessary for every day use of the inverter.

 

Charging: Now let’s talk about charging. The first way you can charge your system is by running your van. When you run your van, the alternator runs and charges your system. To view incoming amperage, access “05D DC-Amps BMK” in the Meters menu. You’ll see the amps are now displaying as a positive number, meaning the batteries are now charging. When driving, your system charges quicker, and if you have added a secondary alternator you’ve positioned yourself for optimal charging.

When charging your battery via shore power, your inverter screen will read “Bulk Charging”, “Absorb Charging”, or “Float Charging”. When your van is plugged into an outlet, you’ll see the green light illuminated next to “Power” and “CHG”. There’s no need to press the Charger button, as your batteries will begin charging automatically when plugged in. As a good rule of thumb, shore power should be used every 21 days for about 2 days, and for 1 day immediately before you plan to use your van to ensure the batteries are fully charged and ready for your adventure. When your van’s plugged in, all of the outlets will be powered by shore power taking the energy drain off your power system. So in turn, try to keep your van plugged in when available.

 

Inverter Button: When you turn the inverter “On” by pressing the “Inverter” button on the bottom left, the display now reads “Inverting”. You’ll see that the green light illuminated next to “Power” and “INV”. You can now use your 110 outlets without being plugged into shore power. Remember that the size of your inverter determines what appliances you can use. For example, if your inverter has a capacity of 2000 watts or more, you can use appliances that output that wattage or less – don’t try to use an appliance with a higher wattage than your inverter can handle. Since I haven’t plugged in any appliances yet, you’ll see that my output is 0 amps. Now let’s run the microwave and see what happens. It now reads between negative 90 and 100 amps. After you’re finished with your desired inverter use, simply turn it off by pressing the Inverter button.

 

Fault Light: The “Fault” light will only come on if there’s a significant fault with either your output voltage or your input voltage. If your batteries have completely run out of power your fault light will illuminate. If this happens, you have to charge your batteries before your fault light will go away. If the light persists, please contact the service and warranty department.

 

CTRL Button: Everything within the “CTRL” Button is programmed by the technicians at Outside Van and does not apply to the everyday user.

 

FAVS Button: The “FAVS” button allows you to store up to 5 of your favorite setup menus for quick access. To add menu items to your favorites, simply navigate to the menu item you’d like to add, press and hold the FAVS button, use the knob to select between F1 through 5, and press the knob to confirm. We recommend adding “05B Battery SOC”, “05C DC Volts-BMK”, and “05D DC Amps-BMK”, since these are the most straightforward ways to check on your battery’s life and amp usage.

 

Setup Button: Next is the “Setup” button, where all the programming is done, which has been set up ahead of time by the technicians at Outside Van. If you’re worried that your settings have been changed for any reason, please refer to the settings chart, which is available by request from our Service Department.

 

Tech Button: And last but not least, the “Tech” button. After pressing, it gives you information about the formatting version your inverter is running.

 

If you have any questions about the procedures covered in this video, please reach out to our service and warranty department at [email protected].