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BYDBattery-Box Premium HVM 16.6

BYD Battery-Box Premium HVM 16.6
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The BYD Battery-Box Premium HVM 16.6 is a home battery with usable capacity 16.56 kWh, round-trip efficiency 96 % and cell chemistry LFP.1

Last updated: Technical specifications Rules in Ireland ⇄ Compare this model
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Usable capacity
16.56kWh1
Round-trip efficiency
96%1
Manufacturer data
Cell chemistry
LFP1
Manufacturer data
Warranty
10years1
Manufacturer data
Expandable up to
66.2kWh1
Manufacturer data
IE

Rules in Ireland

SEAI home battery grant

Unknown

A €600 grant for home battery storage systems was announced on 29 September 2026 and opens from 6 October 2026, subject to final implementation arrangements. Check SEAI for the detailed conditions before applying.

Technical specifications

General
Cell chemistry LFP1
Performance
Usable capacity 16.56 kWh1
Smallest configuration 8.28 kWh1
Expandable up to 66.2 kWh1
Efficiency
Round-trip efficiency 96 %1
Electrical
Backup power Yes1
Off-grid capable Yes1
Dimensions & weight
IP rating IP551
Min. operating temperature -10 °C1
Width 585 mm1
Height 1,694 mm1
Depth 298 mm1
Warranty & lifespan
Warranty 10 years1

Manufacturer documentation

External links to BYD's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.

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Frequently asked questions

What is the usable capacity of the BYD Battery-Box Premium HVM 16.6?

The usable capacity of the BYD Battery-Box Premium HVM 16.6 is 16.56 kWh.1

What is the round-trip efficiency of the BYD Battery-Box Premium HVM 16.6?

The round-trip efficiency of the BYD Battery-Box Premium HVM 16.6 is 96 %.1

Which cell chemistry does the BYD Battery-Box Premium HVM 16.6 use?

The cell chemistry of the BYD Battery-Box Premium HVM 16.6 is LFP.1

What is the warranty of the BYD Battery-Box Premium HVM 16.6?

The warranty of the BYD Battery-Box Premium HVM 16.6 is 10 years.1

Sources

  1. Battery-Box Premium HVM – datasheet, BCU2.0 V1.0 EN (28.03.2025) — BYD Lithium Battery Co., Ltd. · accessed 27 Sept 2026
  2. SEAI home battery grant — Sustainable Energy Authority of Ireland (SEAI)