EU Declaration of Conformity
Declaration Reference
Number: 20250630-001
NO: 20250630-001
1. Battery Model
Battery model: HVM
Product category: Lithium ion batteries
2. Manufacturer Information
Manufacturer Name: Shenzhen BYD Electronics Co., Ltd.
Address: No.1, Yan'an Road, Kuichong, Dapeng, Shenzhen, P.R. China
Authorized Representative Name: EFT-Systems GmbH
Address: Bruchtannenstr. 28, 63801 Kleinostheim, Germany
3. Declaration Issuance
This declaration of conformity is issued under the sole responsibility of the manufacturer.
4. Subject of Declaration
Subject: Battery-Box Premium Module
The battery system contains modules, including: cells, wiring harness, PCBA, case and blind-mating connectors.
Dimensions (W*D*H): 585 mm*298 mm*233 mm
Nominal Voltage: 51.2 V
Nominal Capacity: 54 Ah
Weight: 38.2 kg
Additional Specifications:
- Voltage range: 40~59V
- Max. continuous current: 50A
- Battery type: LiFePO
- Usable energy: 2.76kWh
- Operating temperature: -10°C~50°C
- Protective Class: I
- IP class: IP55
5. Conformity with EU Legislation
The object of the declaration described in point 4 is in conformity with 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. References to Standards and Specifications
References to the relevant harmonised standards or the common specifications used or references to the other technical specifications in relation to which conformity is declared:
- IEC62619
- IEC62040
- VDE2150
- UKCA
- UN38.3
- 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 | 54 Ah / Refer to Limited warranty*1 |
| Max. cont. charge / discharge power*2 | 2.56 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 | 96% / 94% (after 10 years and 3650 cycles) |
| Expected life under design conditions | Refer to Limited warranty*1 |
*1. Limited warranty can be downloaded on the website: www.bydbatterybox.com/downloads
*2. Charge / Discharge power derating will occur related to Temperature and SOC.
8. Standards Applied for Safety of Stationary Battery Energy Storage Systems
| No. | Test Project | Quantity | Test Result |
|---|---|---|---|
| 1 | Thermal shock and cycling | 1 PKS | ☐ Pass ☑ Fail |
| 2 | External short circuit protection | 1 PKS | ☐ Pass ☑ Fail |
| 3 | Overcharge protection | 1 PKS | ☐ Pass ☑ Fail |
| 4 | Over-discharge protection | 1 PKS | ☐ Pass ☑ Fail |
| 5 | Over-temperature protection | 1 PKS | ☐ Pass ☑ Fail |
| 6 | Thermal propagation protection | 1 PKS | ☐ Pass ☑ Fail |
| 7 | Mechanical damage by external forces | 1 PKS | ☐ Pass ☑ Fail |
| 8 | Internal short circuit | 1 PKS | ☐ Pass ☑ Fail |
| 9 | Thermal abuse | 1 PKS | ☐ Pass ☑ Fail |
| 10 | Fire test | 1 PKS | ☐ Pass ☑ Fail |
| 11 | Emission of gases | 1 PKS | ☐ Pass ☑ Fail |
9. Additional Information
Signature of Authorized Company Representative: [Signature Placeholder]
Title: Manager of Quality Department
Place of issue: Shenzhen
Date of issue: 2025-06-30
