Magnum power control

[Kathy Anderson]

Is there a manual that gives detail settings for the magnum power control?
My manual gives ranges but being single woman with limited electric knowledge I would love to have a walk through on setting up the controller.
I have fumbled my way through but am always wondering if it is correct.
Such as when do you need the inverter on?
Shore power setting versus dry camping?
Should charger always be on?
When traveling with generator running do you need to change any settings.
High and low cut outs etc. Thanks in advance

[Beau388]

I try and take a stab at it.
Most Magnums have two parts in one case - inverter and converter which is sometimes called a charger. Settings for both depend on the type and number of batteries. That is because the converter's parameters are set for the batteries it charges. The same is for the inverter. An inverter draws current from the battery bank to supply 120 volt AC power to the coach's accessories.

Each battery manufacturer may have specifics for charging and discharging their batteries. Trojan, Lifeline and Deka (East Penn) all list suggested charging parameters for their batteries. If your battery manufacturer doesn't list specifics, a web search will provide average settings.


An inverter's settings are set to protect the battery from abuse. Again these settings are dependent on the amount and type of the batteries in the bank. The length of time, depth of discharge, and battery temperature all effect the battery's life. Only you can decide what suits your needs.



For me, the inverter is on when ever I am in the coach. When I am on shore power, it acts as an uninterruptible power supply (UPS). The only time it is off is when we not using the coach or trying to conserve battery power when dry camping. I store my coach beside a 50 amp pedestal on shore power but the inverter is off.
Hope this helps some.