SAJ Solar Battery

SAJ Solar Battery: Sydney’s Smartest Energy Hub

At Instant Solar, we are dedicated to bringing the latest in high-performance energy storage to homes across the Sydney region. As energy prices continue to fluctuate, the SAJ B2 Series stands out as the premier choice for Sydney homeowners looking to maximise their solar investment, protect against blackouts, and achieve true energy independence.

The B2 Series is not just a battery; it is a modular, high-voltage storage system engineered for the demands of a modern Australian household.

The SAJ B2 is a stackable, Lithium Iron Phosphate (LiFePO4) battery system designed to grow with your energy needs. Its modular “plug-and-play” design eliminates messy internal cabling, providing a sleek, professional finish that looks great in any Sydney garage or outdoor area.

Get your SAJ Battery Today

We deliver quality solar and battery installations backed by trusted brands and tailored designs – making solar simple, reliable, and built to last.

Why Sydney Homeowners are Choosing SAJ

Modular Scalability: Start with a single 5.0kWh module and expand up to 25.0kWh by simply stacking additional units. Whether you’re a small household or a large family with an EV, the B2 scales with you.
High-Voltage Efficiency: Unlike standard low-voltage batteries, the B2 series operates at a higher voltage, reducing energy loss during conversion and ensuring more of your harvested solar power actually makes it into your appliances.
Rapid Backup Power: Combined with an SAJ Hybrid inverter, the B2 provides near-instantaneous backup during grid failures. Keep your fridge running, your lights on, and your Wi-Fi active even when the rest of the street goes dark.
Sleek, Cable-Free Installation: The unique internal connection design means no exposed wires between modules, significantly reducing installation time and potential points of failure.

Claim Your Federal Battery Rebate

Under the Federal Cheaper Home Batteries Program, Instant Solar applies your rebate as an immediate point-of-sale discount. Following the May 2026 updates, the program now uses a tiered structure designed to support “right-sized” home storage.

What You’ll Save Today:

Base Rate: The current rebate provides approximately $250–$270 per kWh for the first 14kWh of capacity.
Tiered Support: To ensure the best return on investment, the rebate is calculated based on system size:
- 0–14 kWh: 100% rebate rate applies (covers most standard home stacks).
- 14–28 kWh: Support continues at 60% for this additional capacity.
Next Scheduled Change: The next federal funding reduction is set for January 1, 2027. Securing your installation before the end of 2026 ensures you lock in the current 6.8 STC factor.

Why Choose Instant Solar for Your SAJ Install?

As an Approved Retailer serving Greater Sydney, Instant Solar specialises in high-voltage battery integration.

Custom Energy Mapping: We analyse your usage to recommend the ideal module count (5kWh, 10kWh, or 15kWh) for your specific roof size and household habits.
Certified Local Installers: Our Sydney-based teams are accredited experts in SAJ technology, ensuring every stack is commissioned for maximum safety and performance.

Stop paying for peak-hour electricity. Contact Instant Solar today for a tailored quote on the SAJ B2 Series and reclaim your energy independence.

Frequently Asked Questions

Can I start with one battery module and add more later?

Absolutely. One of the best features of the SAJ B2 Series is its modular, “stackable” design. You can start with a single 5.0kWh module and, as your energy needs grow—perhaps due to a new EV or a growing family—we can simply return and stack additional modules (up to a total of 25.0kWh). There’s no need for complex rewiring or a second inverter.

Will SAJ keep my lights on during a Sydney grid outage?

Yes, provided your battery is paired with an SAJ Hybrid Inverter. The system features a built-in UPS-level switchover, meaning it detects a grid failure and begins discharging power from the battery to your “essential loads” (like the fridge, lights, and Wi-Fi) in milliseconds. We will work with you during the design phase to decide which circuits in your Sydney home should be prioritized for backup.

Is SAJ safe for outdoor installation in Sydney’s humid climate?

Yes. The B2 Series carries an IP65 rating, meaning it is fully protected against dust and low-pressure water jets from any direction. It is specifically engineered to handle Sydney’s humidity and salt-air environment. While we generally recommend a shaded spot to maximize long-term efficiency, the unit is perfectly capable of being installed on an external wall or in an open carport.

Get your SAJ Battery Today

We deliver quality solar and battery installations backed by trusted brands and tailored designs – making solar simple, reliable, and built to last.

Why Choose Instant Solar

We are proud to help families across New South Wales gain more control over their energy.

We focus on providing a long-term result that actually does what it says on the box.

Based in Blacktown

We operate from our main office in Blacktown and have been part of the Sydney community for over nine years. We are not a distant call centre. We are a local business with the team needed to support you for the life of your system.

Our own installation team

We do not use sub-contractors. Every system is installed by our own qualified tradespeople. This means the people who arrive at your home are the same ones responsible for the quality of the work, ensuring everything is finished to a high standard.

Long-term support

Our commitment to your home does not end when the panels are on the roof. With a 10-year workmanship warranty and a local Sydney service team, you can always reach us if you need advice or a maintenance check.

SAJ Solar Battery