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Difference between AGM and lithium batteries?


AGM batteries and lithium batteries are two of the most common types of deep-cycle battery used for caravans and boats. There is a lot of debate about which one is better, but in reality both have their pros and cons. In this guide we will look at the differences between AGM Batteries vs Lithium Batteries so you can decide which one is right for you:

While you certainly can do all sorts of comparisons between different battery chemistries, the truth is that most people will be choosing between two types when they buy a deep-cycle battery – lead acid/AGM and lithium.

  • Lithium batteries are more expensive than AGM Lead acid batteries, but you can expect to save money in the long run as you won’t need to replace them as often
  • Lithium batteries are also lighter than AGM batteries, so they are easier to move around
  • Lithium batteries have a longer cycle life than lead acid/AGM batteries – which means they will last much longer before needing replacement

A 130Ah OzPower lead acid battery AGM will weigh in at around 35kgs while a Quality Ozpower 150Ah lithium battery will be more like 16kgs.

Lithium batteries are much lighter than lead acid batteries, and this is important for many reasons. For example, if you have to move your battery around regularly (e.g., on a boat), then this will be an easier task with lithium than with lead acid AGM.

If you’re looking at replacing a battery on your boat, Camper van or caravan, there are some other things to consider when choosing between lithium and lead acid/AGMs. Lead acid/AGM batteries are generally cheaper than lithium Batteries; while they won’t last as long as their high-tech counterparts, they’re very durable and can withstand harsh conditions like cold weather or high heat without breaking down. Lithium batteries will last longer (up to three times longer in some cases), but they’re also more expensive—and in most cases require special charging equipment that might not come standard with your campervan or caravan. If you want something less expensive that still offers good performance across all kinds of conditions, especially cold temperatures, then look no further than Ozpower AGM batteries!

The downside to this of course is that a lithium battery will cost considerably more than an Ozpower AGM lead acid battery.

This is a very important consideration when choosing your battery. Lithium batteries are also lighter and more powerful, but they have a longer life span which is why they are usually the preferred option for caravans, 4wd enthusiasts and those who want the best performance from their equipment.

If you’re looking for convenience and light weight then go with the lithium, if you want to save money go with the AGM.


AGM batteries are cheaper than lithium, but have a lower discharge rate. Lithium batteries have more cycles than lead acid/AGM’s but also more expensive. So what does this mean for you? It means that if you need your battery to last for an extended period of time (like in a caravan/boat), then an Ozpower Lithium deep cycle might be better suited because it can hold its charge longer than a Ozpowe AGM/lead acid battery and will be able to use it at full power output during use. If money is not an issue – or even if it is – go with an Ozpower lithium! It’s simply lighter and easier on your wallet long term!

AGM Batteries

AGM batteries are a type of lead acid deep cycle battery. They are sealed, which means they’re maintenance free. This makes them more expensive than wet cell lead acid batteries but also longer lasting. AGM batteries can last up to three times longer than other types of lead acid deep cycle batteries, so they’re a good choice if you need a lot of battery power and don’t want to worry about changing or maintaining your system over time.

Lithium Batteries

Lithium Batteries are famous for their weight and energy density, which means they can pack more punch into a smaller space. While this may be great for your laptop, it can also come in handy when you’re hauling heavy materials or equipment around on the job site. They’re also much safer than other types of batteries thanks to their design—lithium batteries don’t contain any liquid electrolyte like lead acid batteries do. That makes them less likely to leak and cause damage if they get damaged or dropped, which is a big plus when you have expensive tools at stake!

Lithium Batteries provide plenty of power in a small package but at an increased cost compared with similar sized lead acid models.

Ozpower LiFePO4 Lithium ion batteries are the best alternative to AGM batteries.

Lithium ion batteries are a bette alternative to AGM batteries. However, they are more expensive and might not be the best option for your needs.

Lithium ion batteries are lighter than AGM batteries because lithium cell power density per kg is a lot higher than lead acid batteries. Good quality Ozpower Lithium Batteries also tend to last longer than AGM batteries.

The power density of a lithium ion battery is higher than that of an agm battery so it can produce more current at a lower voltage level with no problem whatsoever which makes them perfect for high-power applications like caravans or 4wd applications where you need a lot of power from just one single source.


That’s all the information we have for you today. Hopefully, it was helpful and informative, but if it wasn’t then don’t worry! You can always come back here anytime to learn more about these batteries and how they can help your needs.
We are Available in store Monday to Friday 8.30am to 4.30pm at 1/21 Empire Cres Chevallum.

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