PSA Why Australians Should Think Twice Before Buying the LG RESU12 or RESU6.5 Battery
Public service announcement 25/01/2025
When it comes to choosing a battery for your home energy storage or off-grid system, safety and reliability are paramount. Unfortunately, the LG RESU12 or RESU6.5 battery raises some serious red flags that every Australian should be aware of. This blog post will delve into why we recommend avoiding this battery for residential or any other use, especially given its track record and potential risks.
We have decided to put out an urgent warning as we noticed a significant price drop on this product in January 2025.
The Problem with LG Batteries: A History of Fires
LG Chem, the manufacturer of the RESU12 battery, has faced significant scrutiny and recalls in recent years due to battery fires. High-profile incidents include:
- Global Recalls: LG Chem recalled tens of thousands of home batteries worldwide, including in Australia, due to fire risks. These recalls were driven by reports of overheating and fires caused by defects in their lithium-ion cells.
- House Fires: There have been multiple cases where LG batteries were linked to house fires, causing property damage and endangering lives. Some of these incidents occurred in Australia, prompting government intervention and safety warnings.
- Ongoing Risks: Even after the recalls, concerns remain about the safety and quality control of LG’s battery products, including the RESU series.
- The Risks of NMC (Nickel Manganese Cobalt) Chemistry
The LG RESU12 or RESU6.5 uses NMC (Nickel Manganese Cobalt) lithium-ion chemistry. While this chemistry offers high energy density, it comes with significant safety trade-offs:
Thermal Instability: NMC batteries are more prone to thermal runaway compared to safer alternatives like LiFePO₄ (Lithium Iron Phosphate). Thermal runaway can lead to catastrophic fires if the battery is damaged or improperly managed.
Sensitivity to Heat: Australia’s climate, with its hot summers, poses a heightened risk for NMC batteries. High ambient temperatures can exacerbate the chances of overheating.
Shorter Lifespan: NMC batteries generally have a lower cycle life than LiFePO₄ batteries, meaning they may need replacement sooner—adding to long-term costs.
Better Alternatives: Why LiFePO₄ is Superior
For Australians seeking reliable and safe energy storage solutions, LiFePO₄ (Lithium Iron Phosphate) batteries are a much better choice. Here’s why:
Safety: LiFePO₄ batteries are inherently more stable and far less prone to thermal runaway, making them ideal for residential and off-grid applications.
Longevity: With a typical cycle life of 4,000–8,000 cycles or more, LiFePO₄ batteries last much longer than NMC counterparts, reducing long-term costs.
Performance in Heat: LiFePO₄ batteries perform better in high-temperature environments, making them well-suited for Australia’s climate.
Popular brands like BYD, EVE, and Hithium offer high-quality LiFePO₄ batteries that are safer and more reliable than the LG RESU12.
Regulatory Concerns in Australia
In Australia, strict safety standards apply to home energy storage systems. Given the history of issues with LG batteries, many installers and retailers are reluctant to recommend or support them. Some insurers may even refuse coverage for systems using LG batteries, citing increased fire risks.
Additionally, the Australian Competition and Consumer Commission (ACCC) has been involved in monitoring LG battery recalls. If you’re considering the RESU12, it’s essential to check whether it falls under any ongoing recalls or warnings.
What You Should Do Instead
- Avoid NMC Batteries: Steer clear of batteries like the LG RESU12 that use NMC chemistry, especially for residential use.
- Choose LiFePO₄: Opt for a safer and more durable LiFePO₄ battery. Brands like EVE, BYD, and CALB are excellent alternatives.
- Work with Reputable Installers: Ensure your energy storage system is designed and installed by professionals who understand Australian safety standards and can recommend reliable products.
- Do Your Research: Look into the safety records and certifications of any battery you’re considering. Avoid any brand or model with a history of recalls or safety issues.
Conclusion: Don’t Risk It with the LG RESU12
While the LG RESU12 may seem like a tempting option due to its compact size and high energy density, the risks far outweigh the benefits. From its NMC chemistry to LG’s history of battery fires, this product is not worth the potential danger to your home and family. Australians deserve safe, reliable energy storage solutions, and there are far better options available on the market today.
Stay safe, do your research, and invest in a battery that you can trust.
