BYD Battery-Box HVB 20.7

The BYD Battery-Box HVB is a scalable high-voltage storage system with lithium iron phosphate (LFP) cells, designed for grid-connected systems, backup operation, and off-grid systems. It offers high safety, proven reliability, and flexible expandability with very simple installation.

• Safety: Proprietary LFP cells, solid die-cast housing.
• Reliability: >1 million systems in >100 countries, LFP expertise since 2002, 15-year guarantee .
• Flexibility: Patented plug connection, expandable at any SoC, up to 3 towers in parallel (up to 89.07 kWh) .
• High performance: True high voltage for high efficiency, high-performance charging/discharging.
• Easy installation: 1 module < 30 kg, complete tower < 1.3 m, one-person installation.
• Intelligent management: Automatic SoC adjustment, remote diagnostics & OTA.

Technical data & variants

Base: HVB module 2.97 kWh, 51.2 V, 27.3 kg. Floor installation, CAN/RS485 communication, charging/discharging efficiency ≥ 95%. Max. output current 50 A , peak current 98 A (15 s) . Applications: Grid-tied / Grid-tied + backup / Off-grid .

Available models

• HVB 5.9: 5.94 kWh, 102.4 V, 479×610×282 mm, 68.7 kg
• HVB 8.9: 8.91 kWh, 153.6 V, 585×610×282 mm, 96 kg
• HVB 11.8: 11.88 kWh, 204.8 V, 691×610×282 mm, 123.3 kg
• HVB 14.8: 14.85 kWh, 256.0 V, 797×610×282 mm, 150.6 kg
• HVB 17.8: 17.82 kWh, 307.2 V, 903×610×282 mm, 177.9 kg
• HVB 20.7: 20.79 kWh, 358.4 V, 1009×610×282 mm, 205.2 kg
• HVB 23.7: 23.76 kWh, 409.6 V, 1115×610×282 mm, 232.5 kg
• HVB 26.7: 26.72 kWh, 460.8 V, 1221×610×282 mm, 259.8 kg
• HVB 29.6: 29.69 kWh, 512.0 V, 1327×610×282 mm, 287.1 kg

Environmental conditions

• Operating temperature: −20 °C to +50 °C (power reduction between −20 °C and 0 °C)
• Protection class: IP55
• Humidity (storage): 5–95%
• Altitude: < 4000 m

Technology & Warranty

• Battery cell technology: lithium iron phosphate (cobalt-free)
• Warranty: 15 years (terms and conditions apply)
• Optional accessories: Smart Wi-Fi/LAN module

Certifications

VDE 2510-50 / IEC 62619 / CEC / CE / UKCA / UN 38.3

Scaling

Up to 3 HVB towers in parallel for a maximum usable capacity of 89.07 kWh .

Shipping costs: free shipping within the EU for orders over €149; for orders under €149, we charge €5.90 shipping costs.

Switzerland: flat rate €25.00

Returns: You can cancel your purchase within 14 days of receipt and then return the products to us. Please note that for sustainability reasons and a fair pricing philosophy, we only cover return shipping costs in the case of a defect or warranty claim.

BYD – Battery Box EU Service Partner
EFT-Systems GmbH
Bruchtannenstr. 28
DE-63801 Kleinostheim
service@eft-systems.de