Aussie Solar Batteries Group – October 2025 Newsletter

October 26, 2025

Aussie Solar Batteries Group – October 2025 Newsletter


Founder and Managing Director, Sunny Li, Leads from the Front


Our Founder and Managing Director, Sunny Li, has been on the ground driving installation progress and personally addressing technical challenges to ensure every customer enjoys a smooth and satisfying experience.

ABOUT ME – SUNNY LI


Many Aussie Solar Batteries customers have met me — whether through various solar forums, on-site visits, or technical support calls. I take great pride in achieving customer satisfaction and leading our team by example.


My journey in the renewable energy industry began nearly 20 years ago. I previously served as a senior management executive at SMA Solar Technology, a global leader in photovoltaic system technology headquartered in Germany, with over 4,000 employees across 20 countries. During that time, I developed extensive technical expertise — from product selection to installation of PV and battery systems — and I’ve applied that knowledge to build Aussie Solar Batteries into one of the most trusted solar battery providers in Australia.



WHY CHOOSE FOX ESS BATTERIES


The Fox ESS battery system holds the top market share in Germany, the UK, and Poland, although it was relatively unknown in Australia before July 2025. Fox ESS is renowned for its highly stable and well-engineered inverters and powerful modular battery systems, including single-stack setups capable of delivering up to 42 kWh of capacity.


The battery cells are produced by REPT (REPT BATTERO Energy), and the EQ4800 model supports over 6,000 charge/discharge cycles, demonstrating exceptional quality and reliability. Aussie Solar Batteries has entered into a strategic cooperation agreement with the Fox ESS Group and is now Australia’s largest Fox ESS distributor. My long-time friend, Michael Zhu, CEO of Fox ESS Group, has provided outstanding support — ensuring we have a consistent supply of stock and helping establish a 30-person local support team in Sydney and Melbourne to assist both installers and homeowners.


In a market where Fox ESS batteries are often in short supply, Aussie Solar Batteries is one of the few companies with secured, sufficient local stock — allowing us to maintain rapid installation progress and meet growing demand.


Customer feedback has been overwhelmingly positive. Fox ESS batteries are now regarded as

being on par with top global home battery brands such as Sungrow, SIG, and Tesla.



CHALLENGES AND OUR RESPONSES


As we continue to expand installations nationwide, our team works closely with nearly 100 installers across Australia. Every home presents its own challenges — from unique electrical settings and PV system designs to meter box configurations and installation locations. We are proud to have achieved an outstanding 4.8-star Google Review rating, reflecting the satisfaction of our customers and the dedication of our team.


Below are a few real-life examples of technical issues we’ve encountered and how we resolved them swiftly.


Case 1 – Wollongong Customer’s Fox App Showing Abnormal Data

The customer’s system was charging, discharging, and feeding power into the grid normally, but the Fox Cloud app showed incorrect readings. I conducted an on-site audit on Saturday, 18 October. The batteries were installed 25 meters away from the meter box. The installer had run an extension cable but did not follow installation standards, causing unstable communication. I re-ran the cable properly, and the issue was resolved. The installer has been suspended until we are satisfied they can adhere to all procedures and standards.


Case 2 – Electrician Customer Complained About Wiring Neatness

This job required an external switch because the cable distance between the inverter and battery exceeded 2 meters. The customer — who is also a licensed electrician — was unhappy with the wiring management inside the external switch box. I personally attended the site and rewired everything neatly. The customer was fully satisfied.


Case 3 – Battery Was Not Discharging

A customer reported that their battery was not discharging. Upon inspection, I found the “Battery Reserve Capacity” was set to 100%, which prevents discharge under grid-connected mode. I adjusted it to 10%, and the battery began discharging immediately. The customer then charged their EV, and the charge power quickly reached 8 kW. The issue was resolved, and the customer was very happy.


Case 4 – CT (Current Transformer) Not Installed Correctly

The customer’s app showed a CT error. The CT is a critical device in solar systems that safely measures AC current and enables accurate energy monitoring, overload protection, and net metering. I visited the site the following morning and discovered that the installer had connected CT1 and CT2 communication cables to terminals 5/9/10/11 instead of 5/6/7/8. After rewiring correctly, the system began operating normally. While the installation was otherwise tidy, the installer was still suspended and scheduled for mandatory retraining.


Case 5 – Packaging Left Onsite

The customer complained that cardboard packaging was left behind after installation. I immediately contacted the installer, and the packaging was removed the very next day.



OUR PHILOSOPHY


At Aussie Solar Batteries, we are committed to delivering affordable, high-quality solar battery systems to Australian homeowners. Our goal is to help customers install sufficient battery capacity to achieve close to a $0 electricity bill, allowing more than 90% of customers to recover their investment within two years.


We currently sell between 1,000 and 1,500 home battery systems per month. While this scale of operation naturally presents challenges, we take pride in our transparent and responsive approach. Even with the most rigorous management and supervision, issues can occur — but we never shy away from them. We stand firmly by our customers, providing prompt technical support, reliable warranty coverage, and personal involvement whenever needed.


These examples highlight my personal dedication to customer satisfaction, a value I continue

to instill across our entire team. Every member of Aussie Solar Batteries shares the same commitment — working tirelessly to help customers choose the right system and enjoy worry-free

ownership.


We may not be able to guarantee that every single installation will be flawless, but we can guarantee that our service will always be prompt, professional, and thorough. Thank you for your continued trust and support in choosing Aussie Solar Batteries for your home energy storage needs.



Warm regards,


Sunny Li

Founder & Managing Director

Aussie Solar Batteries

Why Your Solar Battery Needs a Fire Protection Device

July 30, 2026
Most people weigh up a solar battery on price and payback. Then they read the headlines about lithium batteries catching fire, and the decision changes. Suddenly it is not about savings. It is about the thing bolted to the wall, sometimes a metre from a bedroom. That fear is worth taking seriously. So let us be honest about the facts, because they are not what most people assume. Lithium fires are rising. But not the ones you think. Fire and Rescue NSW recorded 332 lithium-ion battery incidents in 2025, up from 165 in 2022. The Commissioner says they are happening to households almost daily. Here is the part the headlines skip. Those fires are overwhelmingly e-bikes, e-scooters, power tools and cheap no-name devices, usually charged with the wrong charger or physically damaged. Properly installed home solar batteries are a different category, and only a small fraction of that count. Why home batteries are different A quality home battery uses lithium iron phosphate, or LFP. It resists thermal runaway far better than the cheap cells in a $200 scooter. It has a management system watching it around the clock. And in Australia it must be installed by an accredited professional to the AS/NZS 5139 standard. That is why energy storage fires are rare. But rare is not never. Even home batteries have been recalled before, the LG RESU range was subject to a compulsory recall over fire risk. Faults happen. And when a lithium battery does ignite, it is not a normal fire. It can exceed 1000°C, releases toxic gas, resists water, and can reignite hours later. Fire and Rescue say you are around four times more likely to be injured by a battery fire than an ordinary one. Prevention lowers the odds. This handles the rest. Nearly every safety feature on a battery is built to stop a fire starting. Very few do anything once one has. Think of it as four layers: Stable LFP chemistry. A management system that disconnects at the first sign of trouble. Emergency isolation and a modular design that contains a single fault. Built-in fire suppression, the last line, that acts if a fire ever starts. Layers one to three are common. Layer four is where batteries separate. A fire protection device sits inside the unit and, if it detects a fire, releases a suppressant at the source in the first moments, before it becomes a house fire. It does not make a battery fireproof. Nothing honest can. It changes the outcome if a fault ever occurs. The battery we install The Sumray battery has all four layers, including internal fire suppression built in, and is rated for up to 27 years. As one of Australia's largest installers, with 16,000+ systems since 2017, Aussie Solar Batteries fits every one to the current safety standard. Because the safest battery is only as safe as the hands that install it. Worried about battery safety? Check if your home qualifies for a Sumray battery with built-in fire protection. $0 upfront, no obligation.
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