What is the payment methods?

We accept T/T wire transfer, trade assurance and paypal.

What is your warranty?

We guarantee the quality before the item is shipped. You can enjoy 30-day free refund, 4-month free replacement, and lifetime maintenance service from the date of delivery. Any damages caused by improper use are not covered by our warranty.

Waterproof, Lightweight, Long-Lasting – Perfect Batteries for Boats

Name: Waterproof, Lightweight, Long-Lasting – Perfect Batteries for Boats
Brand: EVVA TECHNOLOGY CO., LIMITED
SKU: 2210840535

Guangdong, ChinaEVVA TECHNOLOGY CO., LIMITED

US$6,000.00-9,500.00

10 Pieces

Sample price:US$9500.00/piece.Request sample

Product profile

Customization

Available

Type

Lithium-Ion Battery Pack

Connection Mode

Series and Parallel

Rechargeable

Chargeable

Discharge Rate

High Discharge Rate

Size

Large

Accessories Type

Battery

Rated Capacity

OEM

Standard Voltage

OEM

Usage

Electric Boat

Electrolyte

Li-ion

Operating Temperature(℃)

-20℃~60℃

Anode Material

Ncm/LFP

The Discharge Rate

Protection

IP67

Place of Origin

Guangdong, China

Transport Package

Wooden Box

Specification

OEM

Trademark

EVVA/OEM

Origin

China

HS Code

8507600090

Production Capacity

500000pieces/Year

Key features

IP67 Waterproof Rating: Marine-grade protection with IP67-rated enclosures for safe operation in harsh environments.

High Energy Density: 134.4-146.6 Wh/kg energy density for long-lasting power in limited space.

Premium A-Grade Cells: 100% original cells from Samsung, Panasonic, LG, and other top-tier manufacturers.

Robust Safety Features: Short circuit, over-voltage, thermal protection, and UL94 V-0 flammability rating.

Flexible Scalability: Easily scalable to meet power needs of small and large electric boats.

Lifetime Maintenance: Lifetime maintenance service provided from the date of delivery.

Global Certifications: CE, UN38.3, RoHS, UL, and ISO 9001:2015 certified for global compliance.

Custom OEM/ODM Service: Full customization options available with in-house BMS technology and design support.

Company profile

Exhibition ExperienceManagement CertificationQuality AssuranceCustomization from Designs

EVVA TECHNOLOGY CO., LIMITED

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Designs, Full Customization, etc. CertifiedExport Year: 2 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier operates across new-energy technologies, batteries and components, electronic equipment, automation, intelligent UAVs, AI-related services, and specialized materials. It reports ISO 9001/ISO 9001:2015 management-system certification and CE product compliance certification. Evidence indicates broad customization and ODM/OEM capabilities, recent product development, three production lines, and equipment for lithium-battery sorting, welding, balancing, testing, and inspection. However, the supplier reports no available SDK, while after-sales complaint handling and corrective/preventive-action arrangements are recorded only as “Others.” Financial records are indicated for 2022–2024, but the slices do not provide assessable financial performance details. Customer-related evidence is limited to OEM service for known brands, without named customers or specific case outcomes.

Supplier typeThe supplier is positioned as a diversified manufacturer and technology provider covering batteries, new-energy equipment, electronic and electromechanical products, automation systems, intelligent UAVs, AI and IoT-related services, and specialized chemical or bio-based materials. This breadth supports classification as a multi-sector new-energy and technology manufacturer rather than a narrowly focused supplier.

CertificationsThe supplier reports ISO 9001 and ISO 9001:2015 management-system certification, together with CE certification for product compliance. These are explicit certifications covering management systems and product conformity, although no additional certification types are provided.

R&D capabilityThe supplier reports new products within the past year, ODM services, broad design customization, and activities involving emerging energy technologies, AI systems, algorithms, IoT, electronic materials, automation, and intelligent UAVs. It explicitly reports no available SDK, which limits evidence for software-development integration capability but does not negate the demonstrated product and technology R&D scope.

Production capacityThe supplier operates three production lines and reports manufacturing capabilities spanning batteries, battery components, specialized electronic equipment, robots, automation systems, electromechanical products, communication devices, and intelligent UAVs. Listed equipment includes automatic cell sorting, spot welding, lithium-battery balancing, resistance testing, CCD projection, and an automated lithium-battery sorting and welding line, providing direct evidence of battery-related production infrastructure.

Customization capabilityThe supplier explicitly offers customization from designs, minor customization, flexible customization, and full customization. These options are reported both for R&D/design services and as a design-services capability, indicating support for projects across multiple customization levels.

Product Q&A

Q:Is your battery quality approved?

Yes, we guarantee that all cells are 100% original from Lithiumwerks, Molicel, Panasonic, Samsung, LG and Murata. And we will have full inspection of each cells and grouping them before assembling into battery packs. And all finished battery packs will be under a full inspection before shipment

Q:How can you prove that your cells you use are 100% original?

We can show you the original pack list, outgoing inspection report and other related documents issued by these manufacturers.

Q:Are you a factory? What kind of service do you provide?

Yes, we have a own factory with a team of employees in the field of Lithium batteries for over 20 years. We provide OEM, ODM service for battery packs. Quality is strictly controlled under ISO 9001: 2015.

Q:What certifications do you have?

We have obtained ISO 9001: 2015 for quality management system. And have CE, ROHS, CB, UN38.3, MSDS for several batteries. If for OEM battery packs, we can help customers do certification if there is a need.

Q:What is your lead time if I placed an order?

For all products in stock, our lead time is within 2 working days after payment received. For thoese that we don't stock for the moment such as customized battery packs, the lead time is around 10-15 days.