NATDA Magazine Jan/Feb 2016 | Page 44

trailer is only used once a month “or so” then a solar panel is a great option because not many amps are being pulled from the battery so not many amps need to be replaced. With proper sizing a solar panel can offset the amps used and the parasitic draw. Parasitic draw is a constant drain on the battery. I will use the gas tank comparison once again. A battery is similar to a gas tank that has a tiny pin hole in it. So basically a battery is always losing a little bit of its stored energy. Even when it is sitting in storage not hooked up to anything. As you hook up any electrical 44 device to the battery the parasitic draw increases. Even if it is just a battery cable or a wire of any size, and then whatever the wire or cable is hooked up to. Like the electric motor of a hydraulic power unit. Similar to a gas tank and the pin hole is getting bigger and bigger. Causing the battery to loose stored amps faster and faster. With a properly sized solar panel on a low usage battery the user will have a fully charged (and desulfated with PulseTech) battery, every time he goes to use it. But even the high usage user can benefit from desulfation. And the high usage user will get longer life out a battery with a solar panel. It just may not keep up with the amp draw but it is still getting amps that otherwise it would not be getting. Battery related potential problems -1) System does nothing Possible Reasons… - Battery is dead - Start Solenoid failure due to low voltage Reasons start solenoids fail... The 12 volt DC motor on your hydraulic power unit is very much like a starter motor on a vehicle. So being, “similar to a starter motor”, it has a starter solenoid on the side of the motor. When the starter solenoid sees low voltage the magnetic force in the solenoid has less strength. Therefore the pull down force is not as strong. This can cause a bad connection causing a spark. The longer the connection sparks the less conductive the switch can be. This causes a powdery build up on the connection NATDA Magazine www.natda.org