Operation of the Magnum Inverter charger.

dougrainer wrote:
50 amp service is 100 amp service, not 50 amps total.

we are not a direct total service connection.

we are a 200 AMP service to the house, and the RV 50 amp service is taken thru a 50 AMP C/B off the service distribution buss.

our RV service is limited to 50 AMPs.

dougrainer wrote:
The charge rate feature is NOT new. It has been on Heart/Xantrex and Magnum for over 15 or more years. As explained, ALL it does is allow the Inverter/CHARGER to only pull minimum 120 amps when on less than 50 amp service. IF on 50 amp service there is no reason to change the charge rate. 50 amp service is 100 amp service, not 50 amps total. You determine what your Shore input amp supply is and then set the Charger of the Inverter/Charger to match that incoming amp supply. It then scales back the amount of charge to the Coach Batteries. The higher the charge rate, the MORE amps it will use. Doug

I have the ME-ARC remote like that video, and my Charger menu does not have a "Charge Rate %" setting. I do have the AC-amps setting.

The charge rate feature is NOT new. It has been on Heart/Xantrex and Magnum for over 15 or more years. As explained, ALL it does is allow the Inverter/CHARGER to only pull minimum 120 amps when on less than 50 amp service. IF on 50 amp service there is no reason to change the charge rate. 50 amp service is 100 amp service, not 50 amps total. You determine what your Shore input amp supply is and then set the Charger of the Inverter/Charger to match that incoming amp supply. It then scales back the amount of charge to the Coach Batteries. The higher the charge rate, the MORE amps it will use. Doug

I did a hydrometer check this morning and all batteries checked in the red. (at 13.2 float charge).
there seems to be no way to increase that float charge.

will be calling Magnum Tech. support today.

GordonThree wrote:
That "charge rate" feature is new, I'm kind of jealous.

I'm kind of jealous you understand what it means.

The amperage setting on the remote controls how much current is available to share between the Magnum charger and other loads on that circuit.

If you are parked somewhere and only have a 15a receptacle to plug into, you can set the remote to 15a to avoid overloading the circuit.

If you are on a 50 amp circuit, you can set the remote to 50 amp. If you're on a 30 amp, set it to 30. If you're parked at someone's house and plugged into a 15 amp outlet, set it to 15.

What it does, lets say this example:

Your batteries are low, so the charger is running at full output, 125 amps DC. It needs about 16 amps AC to generate that. If you're at a house with only 15 amps available, it will scale back the charging to not blow the circuit. Then you turn on the coffee maker and that takes 8 amps. The Magnum will subtract 8 from 15 and limit itself to using only 7 amps.

If you're on a 50 amp circuit, and you turn on the AC taking 15 amps, the hot water heater taking another 15 amps and a hair dryer taking another 13 amps, the magnum will do 50-43 and limit itself to only 7 amps for the charger.

That "charge rate" feature is new, I'm kind of jealous.

2oldman wrote:
Maybe somebody has one.. I find that very confusing. Charge rate 50% of what??

You are confused ?? Hmmmmm

Maybe somebody has one.. I find that very confusing. Charge rate 50% of what??