It's been quite well-known that lithium battery systems are one of the bests whether for camping, caravanning or at home. Lithium batteries have an edge over traditional lead-acid or AGM batteries in almost every aspect. Number one, its reduced weight, which is only a third or a single AGM battery bank, makes it perfect for bringing to campsites and hauling on your 4WD or RV.
Lithium batteries also hold their voltage over cycle to supply more power for maximum efficiency. Combining greater usable capacity with an extended lifespan, this battery type is definitely an investment for any outdoor lover. You get up to 5,000 cycles or up to 10 years of use compared to other batteries which only last for 2-3 years. Lastly, they are equipped with a fast-charging feature as well. Gone are the days when you have to wait for long hours just for your battery to be topped off—now you can get a fully charged unit in no time.
Since we're already talking about how awesome lithium batteries are, let's talk about its most popular type too: the lithium iron phosphate batteries, simply known as LiFEPO4. Aside from having all the battery attributes previously mentioned, LiFEPO4 has enhanced safety features that help protect common hazards when operating a battery. This includes overheating, overcharging, undercharging, and short circuits. Additionally, it's made up of non-toxic materials and does not burst nor catch fire easily. Having one of these battery banks will give you significant convenience for sure, but imagine how much better it would be if you have two of them?
What Is Needed For a Dual Battery System?
First of all, let’s define what a dual battery system is. A dual battery system has a second or auxiliary battery installed aside from the vehicle's original battery. The secondary battery is usually fitted in a dedicated space in your car's engine bay to give you an additional power supply without draining your car battery. Wire it properly to a functioning system and you'll be able to enjoy optimal power at camp without worrying about power shortage while running essential appliances like a fridge, microwave, lights, and other camp accessories. Opt for a lithium dual battery system, and you've got the best battery bank combo to feel at home in any campsite.
Keep in mind though, that you will need to pay for installation costs if you're planning to put up an auxiliary battery since this will be an isolated system from your vehicle's starting battery. Typically, a dual battery setup requires a dual battery isolator, a dual battery monitor, and all the necessary wiring. The entire installation process is best done by a professional as well and maybe priced at around $900. Wondering what the best dual battery option is? For off-grid touring, camping, and caravanning, deep-cycle batteries are the most recommended battery type. Both deep-cycle AGM batteries and lithium batteries will do the job excellently as they are considered the best in terms of quality and versatility. Depending on your need, you may also choose to install solar panels or mats for easy recharging of your batteries although solar panels alone can never substitute for a properly installed dual battery kit.
Do Dual Batteries Need to Be the Same?
In a dual battery system, the batteries you will use should always be the same type and age for optimal performance. Also, if they are similar, they will have the same resistance as well which will help them charge equally. Batteries of different types have a tendency to discharge each other in the long run as they have different properties. Using similar batteries are especially important during a parallel connection without an isolator since the chances of catching fire under load is much higher.
More from Outbax
Planning to install a dual lithium battery system? Get your battery banks from Outbax. We have a range of deep-cycle LiFEPO4 perfect as camping batteries, caravan batteries, or home batteries. They’re maintenance-free and made up of quality prismatic cells for superior performance anytime, anywhere. If you want to have an entire solar power system for your RV, we’ve also got available solar panels. Outbax has every camper covered when it comes to outdoor gear. We even have inverter generators and portable power stations in case you’re looking for alternative power sources, plus, our team of experts are just one chat or call away if you need any assistance.