Of course there's a solution. The vehicle didn't come from the manufacturer needing to be jump-started.
Jump-starting implies the battery is not being recharged while you're driving. That is the responsibility of the charging system. The generator is the most likely suspect. Start by measuring the battery voltage while the engine is running and with it off. With it running it must be between 13.75 and 14.75 volts. If it is lower than that the generator is not working but that could also be due to the voltage regulator which controls the generator.
If the voltage is within that range yet the battery is not staying charged the battery itself could be bad or the generator could have one bad diode of the six. A professional load test will find that. With one bad diode the generator will only be able to produce exactly one third of its rated output current. That's not enough to meet the demands of the electrical system under all conditions so the battery will make up the difference until it runs down.
With the engine off the battery voltage should be 12.6 volts. That shows it's fully charged. If you find closer to 12.2 volts the battery is okay but it's discharged. At around 11 volts or less the battery has a shorted cell and must be replaced.
Sunday, May 19th, 2013 AT 11:11 PM