Originally Posted by GHodge
For anyone still with the original Magnum Controller you should consider upgrading to the ME-RC Remote Control. It provides much more information for diagnostics & additional functionality to adjust the bulk charge & Float charging rates.
I was experiencing faults and over charging of the batteries resulting in boiling & acid overflow.
This was an inexpensive upgrade, $225.00 Canadian so you US owners would get a better deal.
It will extend the life of your expensive batteries and will pay for itself in a short time.
Ditto.... I've had to set my charge rate clear down to 30%. I don't know why the magnum inverter overcharges so badly as it comes from the factory. At 50% I was STILL boiling the batts.
I paid the same as you, BTW, but I now have to replace $600 worth of batts that are only 3 years old. OUCH!!!
I HIGHLY recommend this item, especially if you've just replaced or about to replace the batts.