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ZT-2.0 15kWh

Built for larger homes and demanding energy needs, the Zephyr Tech ZT-2.0 15kWh Powerwall is the ultimate in next-generation storage. Whether powering multi-zone homes, EV charging, or high-consumption systems, its solid-state cells deliver industry-leading safety, efficiency, and durability. Designed for whole-home backup availability and serious energy autonomy, the ZT-2.0 offers maximum capacity in a sleek, advanced package - future-proofing your energy independence with premium performance.

Need us to install your battery? Here's how it works:

  1. We visit your site — to check the ideal battery location and prepare for a seamless install.
  2. We handle the technical stuff — including grid approvals (DNO), so you stay compliant
  3. Our ZT approved contractors install your system — clean, fast, and to the highest standards.
  4. You start saving — monitor usage, cut bills, and enjoy real energy independence.

No guesswork. No surprises. Simply choose Battery With Full Installation and check out for £0 — we’ll contact you to confirm your setup and provide a full quote.

£ 6,495.00 
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We deliver to anywhere inside the United Kingdom.
Product Information
  • Nominal Capacity: 15.36kWh (300Ah)
  • Nominal Voltage: 51.2V
  • Cycle Life: >6000 cycles (@80% DoD)
  • Efficiency of Charge/Discharge: 100% / 98–99%
  • Monthly Self-Discharge: <3%
  • Charge Voltage: 58.4V ±1V
  • Max. Charge/Discharge Current: 120A / 200A
  • Internal Resistance: ≤30mΩ
  • Mounting Options: Floor mount
  • Dimensions: 684mm x 477mm x 243mm
  • Weight: 130kg
  • Battery Chemistry: LiFePO₄
  • Smart Monitoring: Compatible with SunsynkApp
  • Warranty: 10 Years (T&Cs apply)
  • Product Dimensions
    Weight
    110500
    g
    Width
    24.3
    cm
    Height
    68.4
    cm
    Length
    47.7
    cm