1. Product Identification
Battery Model: LVS
Product Category: Lithium ion batteries
2. Manufacturer and Representatives
Manufacturer: Shenzhen BYD Electronics Co., Ltd.
Manufacturer Address: No.1, Yan'an Road, Kuichong, Dapeng, Shenzhen, P.R. China
Authorized Representative: EFT-Systems GmbH
Representative Address: Bruchtannenstr. 28, 63801 Kleinostheim, Germany
Importer: BYD Smart Device Hungary Kft.
Importer Address: Prologis Park Budapest M1, Szent József út 4., 2071 Páty, Hungary
Email: bydsmart@byd.com
3. Declaration Responsibility
This declaration of conformity is issued under the sole responsibility of the manufacturer.
4. Subject of Declaration
Subject: Battery-Box Premium Module
Description: The battery system comprises modules including cells, wiring harness, PCBA, case, and blind-mating connectors.
Product Visual Description
A rectangular battery unit with a grey casing. It displays "BYD Battery-Box Premium Module", "Model: LVS", "Nominal Voltage: 51.2 V", "Usable energy: 4kWh", "Rated capacity: 78.2Ah", "Operating temperature: -10°C~50°C", "Protective Class: I", "IP class: IP55". It also shows CE and recycling symbols.
Dimensions (W*D*H): 650 mm * 298 mm * 233 mm
Nominal Voltage: 51.2 V
Nominal Capacity: 78.2 Ah
Weight: 44.6 kg
5. Conformity with EU Legislation
The object of the declaration conforms to the relevant Union harmonisation legislation:
- (EU) 2023/1542
- 2014/53/EU
- 2011/65/EU, including its amendment (EU) 2015/863
- (EC) No 1907/2006
6. Referenced Standards and Specifications
References to harmonised standards, common specifications, or other technical specifications:
- IEC 62619
- IEC 62040
- VDE 2150
- UKCA
- UN 38.3
- EN 300328
- EN 301489-1
- EN 301489-17
- EN 62311
- EN 61000-6
- EN 62477
7. Electrochemical Performance and Durability Parameters
| Parameter | Value |
|---|---|
| Rated capacity / attenuation rate | 78.2 Ah / Refer to Limited warranty*1 |
| Max. continuous charge / discharge power*2 | 3.328 kW |
| Charge / discharge power decay rate | 0 |
| Initial internal resistance / increase rate | ≤ 0.8 mΩ / Increase 15% (after 10 years and 3650 cycles) |
| Initial / end cycle efficiency | 95% / 94% (after 10 years and 3650 cycles) |
| Expected life under design conditions | Refer to Limited warranty*1 |
*1. Limited warranty can be downloaded from: www.bydbatterybox.com/downloads
*2. Charge / Discharge power derating will occur related to Temperature and SOC.
8. Safety Standards Applied
Standards applied for Safety of stationary battery energy storage systems:
| No. | Test Project | Quantity | Test Result |
|---|---|---|---|
| 1 | Thermal shock and cycling | 1 PKS | Pass |
| 2 | External short circuit protection | 1 PKS | Pass |
| 3 | Overcharge protection | 1 PKS | Pass |
| 4 | Over-discharge protection | 1 PKS | Pass |
| 5 | Over-temperature protection | 1 PKS | Pass |
| 6 | Thermal propagation protection | 1 PKS | Pass |
| 7 | Mechanical damage by external forces | 1 PKS | Pass |
| 8 | Internal short circuit | 1 PKS | Pass |
| 9 | Thermal abuse | 1 PKS | Pass |
| 10 | Fire test | 1 PKS | Pass |
| 11 | Emission of gases | 1 PKS | Pass |
9. Additional Information
Signature of Authorized Company Representative: [Signature Placeholder]
Title: Manager of Quality Department
Place of Issue: Shenzhen
Date of Issue: 2025-07-15
