BYD Battery-Box.
Built to last.
Popular home battery. Modular LFP chemistry with 10,240+ cycle life, scalable from 5.1kWh to 22.1kWh. Proven reliability in over 1 million global installations.
Battery-Box Premium
specs.
kWh Capacity Range
Cycle Life (LFP)
Round-trip Efficiency
Warranty Period
Why BYD is
Australia's favourite.
Modular Design
Start with 5.1kWh and add modules as your needs grow. Each module clicks together — no rewiring, no new inverter. Scale your storage over time.
LFP Chemistry
Lithium Iron Phosphate (LFP) cells are inherently safer, longer-lasting and more thermally stable than NMC alternatives. No thermal runaway risk.
10,240+ Cycles
At one cycle per day, that's over 28 years of service life. BYD batteries outlast their warranty by a significant margin in real-world conditions.
Inverter Flexible
Compatible with Fronius, SMA, GoodWe, Sungrow and more. Choose the best inverter for your system without being locked into one ecosystem.
Compact & Quiet
Wall-mounted design with minimal footprint. No moving parts, no fan noise. Suitable for garage, laundry or outdoor installation.
Proven Globally
Over 1 million Battery-Box units installed worldwide. BYD is the world's largest battery manufacturer with proven track record in Australian conditions.
Choose your
Battery-Box.
High Voltage Small
5.1–12.8kWh in 2.56kWh increments. Ideal for smaller homes or those starting their battery journey with room to expand.
High Voltage Medium
8.3–22.1kWh in 2.76kWh increments. The most popular choice for Australian families wanting comprehensive energy storage.
Low Voltage
4.0–256kWh for commercial and off-grid applications. Scalable architecture for businesses and large-scale energy storage projects.