Australia's Most Installer-Friendly Battery: Modular, IP65 Rated, and Built for Margin
Muller Energy: Introduction to the new Chint BESS
Learn about our advanced Chint CPS ESSR battery systems and how they can power your projects.
CEC Approved
Federal Rebate
NSW Battery Rebate
10-Year Warranty
Why Installers Choose Muller's Battery Range
We focus on what matters to you: sharp pricing, strong warranty support, and gear that’s easy to install. Our Chint CPS ESSR batteries are fully CEC certified, IP65 rated, and trade-only. No retail distractions. No warranty games. Just dependable systems that help you build your business.
Strong Margins
Our wholesale pricing puts real profit back in your hands.
Installer-First Design
Modular format, IP65 rating and stackable form factor for streamlined installs.
CEC Approved and Rebate Eligible
Meets all Australian standards and qualifies for both federal and state programs.
Exclusively for Trade
We support installers, not end users. Your customer stays your customer.
CHINT CPS ESSR Product Range
Scalable high-voltage battery solutions designed for Australian residential and commercial applications. Choose from 5kWh to 20kWh configurations.
10.24kWh
Popular Choice
15.36kWh
Extended Capacity
20.48kWh
Maximum Capacity
Installer Rebate Calculator
Calculate customer savings with federal and NSW rebates on Chint CPS ESSR battery systems. Enter your pricing to get instant rebate calculations.
System Configuration
Customer Savings Breakdown
Installer Profit Analysis
Federal STC Rebate
NSW Battery Rebate
*All prices ex GST. Rebate calculations based on current rates and subject to eligibility.
**This calculation is an estimate only and may not be accurate, please do your own calculations to calculate profit.
***The unit price is based on an assumed order quantity of 20 batteries.
Chint Battery Rebate Calculator
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \nInstaller Rebate Calculator
Calculate customer savings with federal and NSW rebates on Chint CPS ESSR battery systems. Enter your pricing to get instant rebate calculations.
System Configuration
Customer Savings Breakdown
Installer Profit Analysis
*All prices ex GST. Rebate calculations based on current rates and subject to eligibility.
**This calculation is an estimate only and may not be accurate, please do your own calculations to calculate profit.
***The unit price is based on an assumed order quantity of 20 batteries.
Key Features & Advantages
CHINT CPS ESSR battery systems deliver superior performance with advanced safety features and modular scalability
Lithium Iron Phosphate (LFP)
Safe, long-lasting battery chemistry with high thermal stability.
Modular Design
Each 44kg module is easy to install and scalable up to 61.44kWh.
100% Depth of Discharge
Use the full battery capacity with 100% DOD support.
IP65 Protection Rating
Dust- and water-resistant for indoor or outdoor use.
Natural Cooling
Runs efficiently without fans, cutting noise and maintenance.
Multiple Safety Certifications
Certified to major global safety standards including IEC, CE, VDE, and UN38.3.
Perfect for Australian Conditions
Operating temperature range from -10°C to 50°C makes these systems ideal for Australia's diverse climate conditions. With natural cooling and robust construction, they deliver reliable performance year-round.
Operating Temperature
Charging: 0°C to 50°C
Discharging: -10°C to 50°C
Installation Options
Floor Mount & Wall Mount
Indoor & Outdoor
70%
End of Life Capacity
CPS ECD51
Power Control Module
What else is in the box
- Prewired combiner & comms box (top)
- Battery base with internal BMS (bottom)
- Mounting brackets
- Power cables
- Comms cables
- 304 Stainless Steel Bolts
Universal Inverter Compatibility
Runs Pylontech communication protocol for seamless integration with leading inverter brands
Plug & Play Installation – No Programming Required

Victron Energy

GoodWe

Sungrow

Solis

Growatt

Deye
Why Pylontech Protocol Matters for Installers
- No complex programming or configuration required
- Automatic battery detection and optimisation
- Real-time monitoring and diagnostics
- Faster installation means higher profit margins
Installation Time Savings
Average installation time reduced from 4 hours to 1 hour with plug-and-play compatibility
Why Our Happy Customers Choose Us as Their Top Choice
Posted on Graeme HegneyTrustindex verifies that the original source of the review is Google. Great service and good prices, items packed and shipped in good time.Posted on p cTrustindex verifies that the original source of the review is Google. Ordered something that noone else had, anywhere, and it was perfect for what I needed. Looking forward to grab more things on the future, thanks guys.Posted on Aaron DyerTrustindex verifies that the original source of the review is Google. Amazing quality! I am a mobile Auto Electrician and the 200ah setup was so easy to install with the touch screen. It has made my life easier in so many ways! I should have bought one years ago, Thanks guys.Posted on Dave RoweTrustindex verifies that the original source of the review is Google. Arrived in good time, no complaintsPosted on Alan MainwaringTrustindex verifies that the original source of the review is Google. Love the you tube videos on how to set up this 16s bms 250 amp. Good quality system expensive but that is to be expected. Will be buying more units for future battery packsPosted on Hugh StewartTrustindex verifies that the original source of the review is Google. Prompt response and good price.Posted on Paul ScusselTrustindex verifies that the original source of the review is Google. The unit I purchased was competitively price, it was shipped soon after purchase and received in a short time. The seller also kept me informed along the way. Thank you, I will definitively use this seller again.Posted on Lynette BloklandTrustindex verifies that the original source of the review is Google. I'm so impressed with these 300Ah batteries that we now have 3 of them. I have 2 of them connected in parallel at home as a grid back-up and just got the 3rd one to replace a smaller system in our van. The quality is superb and the design faultless. Also worth highlighting the support from Muller Energy in answering any questions you may have. Fantastic all round!Posted on Mitch GraceTrustindex verifies that the original source of the review is Google. What a great small local business... really inspiring to see! Ruben & Hannah not only provide some of the best quality equipment you can get your hands on, but they do in in a very personable human scale way. I suspect that they will be my go to for offgrid energy supplies for years to come and wish them the best of luck with their business. Go with these guys, they're excellent!
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Contact Number
0493 274 334 #contactmu { color: white; font-weight: normal; text-decoration: none; /* Ensures no underline */ }
HQ Location
38/3 Cal Close, Somersby NSW 2250