FAQs, Support, Warranty & More

At 80% depth of discharge (DoD), our lithium Muller Energy batteries have a cycle life of more than 3000 cycles. This extends the lifespan of the Muller Energy batteries without noticeably lowering performance because you can discharge them to 80% of their capacity before recharging.

Yes, our Lithium Muller Energy batteries can replace AGM and lead-acid batteries. The benefit of Muller Energy lithium batteries is that they are lighter, more effective, and charge more quickly. For best results, make sure your charging equipment is compatible with lithium technology. Please contact our friendly team for advice on compatible chargers.

• Weight: Lithium Muller Energy batteries are perfect for vehicles like caravans since they are much lighter.

  Efficiency: They have a higher usable capacity (up to 80–90% DoD versus 50% for AGM) and charge more quickly.

  Lifespan: Unlike AGM, lithium Muller Energy batteries have a cycle life of 2000–5000 cycles.

  Savings: Lithium batteries are initially more expensive, but over time, their longer lifespan and increased efficiency make them more economical.

Yes, it is possible to put our Lithium Muller Energy batteries in any orientation without compromising their functionality. This adaptability is particularly helpful in confined spaces with irregular shapes, such as boats and caravans.

Every Muller Energy battery has an integrated BMS that guards against:

• Overcharging
• Over-discharging
• Short circuits
• Overheating 

This guarantees your Muller Energy battery’s durability and safety by automatically shutting down in harsh environments to guard against damage.

Yes, both series and parallel connections are supported by the design of our Muller Energy batteries. For instance:

Series: To increase voltage, connect Muller Energy batteries in series (for example, two 12V Muller Energy batteries can be connected to make a 24V system).

Parallel: To raise the capacity, connect in parallel (for example, two 100Ah Muller Energy batteries to make a 200Ah system). Confirm that the charger and battery management system you have are compatible with the setup. Please contact our friendly team for further advice around this. 

Our Muller Energy batteries are suitable for marine applications since they have an IP rating for resistance to dust and water. The ideal temperature range for them is between -10°C and 60°C. Additionally, the integrated BMS guards against overheating, guaranteeing safe operation in hot environments.

Lithium iron phosphate (LiFePO4) battery compatibility is required. Lithium batteries might not be fully charged by conventional lead-acid or AGM chargers. For best charging, we suggest a multi-stage charger with a lithium charging profile that includes bulk, absorption, and float stages.

For items in stock, we dispatch within 24 hours on business days and orders are usually delivered in 2–5 business days to metropolitan areas. Delivery dates could take seven to ten business days for rural and regional regions. Longer delivery times could also occur during particularly busy times, like the lead up to Christmas.

For an extra cost, we provide express shipping, which offers quicker delivery in metropolitan areas in 1-2 business days. Please contact our friendly team if you wish to upgrade to express shipping. We also offer pick up from our warehouse in Somersby, New South Wales.

You can submit a warranty claim in the event that the battery fails. We offer a five-year warranty against manufacturing defects. Depending on the conditions, we will provide a repair, replacement, or refund once our experts confirm the problem.

Yes, we provide a satisfaction guarantee for 30 days. You can return the battery for a complete refund if it is unused and still in its original packaging. Unless the goods are damaged, return shipping costs are to be paid by the buyer.

No, a built-in balancing function in our Muller Energy batteries makes sure the battery’s cells stay balanced automatically. Without requiring manual intervention, this prolongs the battery’s life and performance.

Yes, our lithium Muller Energy batteries are ideal for 4WD and overland applications because they are small, light, and vibration-resistant. They are resilient to the harsh environments and many cycles of charging and discharging that are typical on off-road travels.

The majority of our lithium Muller Energy batteries have a maximum continuous discharge current of 100A. For heavier-duty purposes, we also provide high-performance models with discharge currents up to 150A.

Yes, our Muller Energy batteries can support heavy loads and work with inverters to power equipment like air conditioners and refrigerators. Make sure that the inverter’s rating corresponds to the Muller Energy battery’s discharge capacity.

No, Muller Energy lithium batteries don’t require any maintenance. In comparison with lead-acid batteries, frequent charging and water top-ups are not necessary to prevent sulfation.

The charging efficiency of lithium batteries drops in cold weather, yet electricity can still be produced. In order to avoid long-term deterioration, we advise charging Muller Energy batteries at temperatures higher than 0°C.

Yes, there are Bluetooth-enabled monitoring systems included with our Muller Energy batteries. A specialised smartphone app allows you to monitor battery statistics in real time, such as temperature, voltage, and state of charge (SoC).

• Avoid deep discharges: Try to keep the depth of discharge (DoD) around 80%.
• Use the correct charger: It’s important to use a charger with a lithium charging profile.
• Temperature: For best results, keep the Muller Energy battery between 10°C and 30°C.
• Storage: To avoid deterioration, keep the Muller Energy battery at about 50% state of charge (SoC) if you won’t be using it for a long time.

Yes, our Muller Energy batteries are compatible with Redarc and Victron DC-DC chargers that we also stock. Please get in touch with our helpful staff if you need help choosing the ideal charger for your battery.

Camping fridges and even microwaves can be powered by our lithium Muller Energy batteries when used with 2000W or 3000W inverters. Our Muller Energy batteries are designed to withstand large power loads without experiencing performance problems or voltage drops.

Yes, all of our Muller Energy batteries have monitoring systems that can connect via Bluetooth. A specialised smartphone app allows you to monitor battery statistics in real time, such as temperature, voltage, and state of charge (SoC).

Yes, for longer off-grid use, our Muller Energy batteries can be connected in parallel to maximise their total capacity. However, always make sure that your battery management system (BMS) is compatible with series designs that increase voltage (for example, from 12V to 24V). For any help connecting our Muller Energy batteries in series, please get in touch with our friendly team.

It has been proven that these Muller Energy batteries function well under harsh conditions. They can tolerate heat, dust, and vibrations without losing performance, according to certain customers who have used them for 4WD and off-road systems.

Muller Energy batteries come with a five year warranty. In case of an issue arising, our team handles warranty claims with ease. Depending on the conditions, we will provide a repair, replacement, or refund once our experts confirm the problem.

Make sure that DC-DC chargers are set to the lithium profile. Our Muller Energy batteries are designed as the best replacement for AGM batteries.

Our Muller Energy batteries are actually designed to run on solar power. They can be connected to solar systems in RVs and caravans. They are perfect for off-grid solar power because of their quick charging times and great efficiency (even in partial shade).

Muller Energy batteries can sustain a continuous discharge rate of approximately 100A, making them appropriate for powering high-draw devices such as air conditioners and larger inverters. There are no issues with performance under high load or voltage drops.

For best results, avoid charging at sub-zero temperatures. It is advisable to bring the Muller Energy batteries indoors or warm them up a bit before charging to prevent damage, even though they will still discharge power in cold conditions.

Yes, a Muller Energy battery can be used to power various appliances, such as 2000W inverters, lights, and refrigerators. Muller Energy batteries are made to support multiple loads at once without quickly dying or dropping voltage.

A built-in Battery Management System (BMS) protects against overcharging, over discharging, short circuiting, and overheating in our lithium Muller Energy batteries. This guarantees that under certain conditions, the Muller Energy battery will safely shut down to prevent damage.

Muller Energy batteries are low in low in weight, making they are much lighter than similar AGM or lead-acid batteries. They are perfect for situations where weight is an issue, such as campers and caravans.

Customer feedback has been very positive and has consistently raise the following points:

• Fast shipping and smooth transaction process
• Outstanding customer service before and after the sale
• Excellent performance under load and in demanding conditions
• Long lifespan and capacity for off-grid living

Please refer to our Google reviews for detailed feedback on Muller Energy batteries: Muller Energy Google Reviews

We sell various capacities to cater for all needs and budgets:
Muller Energy 12V 105Ah (also available in slimline format)
Muller Energy 12V 200Ah (also available in slimline format)
Muller Energy 12V 300Ah
Muller Energy 24V 100Ah 

Yes, there is a five year warranty on all Muller Energy batteries and we provide customers with an easy warranty claim process if any issues arise.

Yes, Muller Energy batteries are compatible with Victron Energy systems, which we also sell to provide customers a wide range of products for all their needs.

We use reputable courier partners and Australia Post for shipping our products. For items in stock, we dispatch within 24 hours and customers are provided with tracking numbers to allow them to track their order.

Lithium Muller Energy batteries are recognised for being far lighter than AGM batteries, depending on their capacity, they weigh between 16kg and 30kg.

Yes, Muller Energy battery can be connected in parallel in order to improve overall capacity.

Yes, a built-in BMS protects against short circuits, overcharging, and over discharging in all Muller Energy batteries.

The Muller Energy batteries can be used with 2000W inverters without any problems. High loads are manageable for Muller Energy batteries.

Yes, they provide excellent performance when used with solar setups in caravans and motorhomes.

Yes, many customers have replaced their AGM batteries with our Muller Energy lithium batteries. Please contact our friendly team for specific advice.

Muller Energy provides free shipping Australia wide. For items in stock, we dispatch within 24 hours on business days and orders are usually delivered in 2–5 business days to metropolitan areas. Delivery dates could take seven to ten business days for rural and regional regions. Longer delivery times could also occur during particularly busy times, like the lead up to Christmas.

Because of their integrated BMS, our Muller Energy batteries have been used effectively in hot Australian conditions without overheating.

Yes, Muller Energy batteries are built to last and can withstand harsh off-road situations including temperature changes and vibrations.

To avoid damaging the batteries, it is better to avoid charging them in extremely cold temperatures. Don’t charge them below 0°C.

No, in order to prevent damage, it’s important to use a charger designed specifically for lithium or one with a lithium charging profile. Please contact our friendly team for advice specific to your situation.

Although Muller Energy lithium batteries are more costly at first, they end up being a more economical option over time due to their longer lifespan and improved performance. 

Muller Energy batteries don’t need maintenance, unlike lead-acid or AGM batteries, which may require regular inspections.

Even during extensive discharge cycles, the Muller Energy batteries function effectively, preserving their lifespan and capacity.

Yes, numerous customers have easily installed them themselves in 4WDs, campers, and caravans. Please contact our friendly team for advice specific to your situation.

With a suitable lithium charger, the battery usually charges in 4-6 hours, depending on the charger and setup.

Long-term use is made possible by the batteries’ rated cycle life of thousands of cycles, however like other lithium batteries, there is some capacity loss over time.

To extend its life, the Muller Energy battery should be kept in a cool, dry location at 50% charge.

Usually arriving between 30 and 50 percent charged, Muller Energy batteries should be fully charged before its first use.

Muller Energy batteries will discharge in cold weather, but to avoid long-term damage, do not charge them in freezing temperatures.

Yes, customers have successfully powered high-load devices like air conditioners with Muller Energy batteries.

Because of the integrated BMS, the Muller Energy battery may be discharged to 80–90% of its capacity without causing serious damage.

Yes, customers have charged Muller Energy batteries while running lights and refrigerators at the same time.

The Muller Energy batteries are perfect for use in 4WDs and caravans because of their long-lasting and vibration-resistant design.

Customers have shared satisfaction with customer service, especially when it comes to answering technical queries or fixing problems. Feel free to reach out to our friendly team at any time.

Some customers recommend installing a fuse or breaker to protect your system, particularly if you’re utilising an inverter or several batteries.