Installing a good-quality deep cycle house battery is an excellent way to divy up your power needs so that your starter battery can focus on its job without the burden of feeding accessory device power needs.Īrranged in the right dual-battery system and you’ll have both the starter and house batteries working together so that you’ll have enough power where and when you need it.Īnswering two crucial questions will steer you toward a good battery purchase decision: price and compatibility. That’s where house (aka “auxiliary”) batteries come into play. Before you know it you’ve got a dead battery and a pickle of a situation. Turn the vehicle off, and suddenly your starter battery is on the hook for powering those devices. While your vehicle runs, all the accessory devices you’ve got hooked up can charge. Starter batteries are specifically designed to produce large bursts of power to start your vehicle, then relinquish power responsibilities over to the vehicle alternator. When you’re traveling the country, chances are there’s a slew of energy-consuming devices you’re bringing with you: refrigerators, cameras, laptops, tablets, lights, fans, to name a few right? Relying on your vehicle’s (aka “starter”) battery alone to power these devices is a short order for disaster. Check out this TED-Ed video for a better explanation of rechargeable battery basics: Starter vs. Over time the battery becomes less efficient in this process and ultimately die and require complete replacement. Batteries operate through a repeating cycle of oxidation and reduction, where electrons travel between two metals (from the anode (-) to the cathode (+) during battery use and from the cathode (+) back to the anode (-) when recharging via an external power source). Before we discuss the differences between the two, let’s quickly recap basic rechargeable battery mechanics.

The basic mechanics within these batteries are the same, the chemicals and materials used to achieve the results are what differs. Battery Basicsĭeep cycle batteries fall into one of two primary categories: lead acid or lithium ion. Use this guide to understand what to look for in a battery and see which batteries rise to the top of our list. With a seemingly endless array of battery choices before you, how do you know what’s high quality and what’s just junk? How do you make an informed choice without spending hours upon hours weeding through YouTube videos and online reviews? We’ve done the dirty work for you.

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