Hey perkj, I think you must be reading something wrong. The Traxide will protect your main battery from a drain that would not allow the cranking battery from starting the LR3. Say you are running a fridge over the weekend, and have both the main and 2nd battery connected. The Traxide joins the two batterys and provides exteneded run-time to the fridge based on both batterys. In this state, the LED on the Traxide is solid.
However, if the Traxides senses that the main battery is dropping below the voltage necessary to crank the engine, it will automatically disconnect the main battery. I believe that cut off threshold is about 11.4volts from memory. Once the cranking battery drops below 11.4v, the Traxide will disconnect it from the other bank of batterys. It does this so that you you never be without starting power. In this state, the LED on the Traxide will be blinking. This indicates that the Traxide has isolated the cranking battery from the house batterys.
I have used the Traxide for about five years with the Interstate cranking battery, in conjunction with an Optima yellow top under the hood and a Sears Platinum Marine deep cycle in the cargo area. Works like a champ.
However, if the Traxides senses that the main battery is dropping below the voltage necessary to crank the engine, it will automatically disconnect the main battery. I believe that cut off threshold is about 11.4volts from memory. Once the cranking battery drops below 11.4v, the Traxide will disconnect it from the other bank of batterys. It does this so that you you never be without starting power. In this state, the LED on the Traxide will be blinking. This indicates that the Traxide has isolated the cranking battery from the house batterys.
I have used the Traxide for about five years with the Interstate cranking battery, in conjunction with an Optima yellow top under the hood and a Sears Platinum Marine deep cycle in the cargo area. Works like a champ.