What does a jeep auxiliary battery do?

The Aux battery keeps keeps accessories and computer alive when the ESS stops the engine. The size of the Aux battery is insufficient to provide cranking current to the starter motor anyway. It only is there to keep systems alive when the alternator is not producing anything. via

Where is the battery on my 2017 Jeep Grand Cherokee?

While the battery for the Grand Cherokee is located under the passenger seat, the basic steps to jump-starting a dead Jeep battery begin the same way. There are remote battery terminals located under the hood. via

Where is second battery in 2016 Jeep Cherokee?

In a 2016 Grand Cherokee the second battery is under the passenger seat. via

Where is the second battery in a 2019 Jeep Cherokee?

He said "the WK2 has 2", meaning the latest Grand Cherokees have 2 batteries : one regular for starting under the hood and an extra smaller one for ESS under a seat. Both batteries are under the front passenger seat. via

How do I add a second battery to my Jeep? (video)


How long does a 2017 Jeep Grand Cherokee battery last?

Your 2017 Jeep Grand Cherokee battery will typically last between 3 to 5 years, but that can vary heavily depending on weather conditions battery size, type of battery, and driving habits. via

How do you remove the battery from a 2017 Jeep Grand Cherokee? (video)


Why does my Jeep say aux switches temporarily unavailable battery charging?

It generally means your battery's voltage is below 12 volts. via

How do you connect 4 12v batteries to 48v? (video)


Where is the auxiliary battery on 2015 Jeep Cherokee?

One is used for the main motor and the other is considered an auxiliary battery for the Grand Cherokee's stop start feature. You'll find both batteries housed under the passenger's front seat. via

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