Junda designs and manufactures waterproof lithium battery packs tailored to your voltage, shape, and application needs, ensuring long-lasting performance in wet, dusty, or high-pressure conditions.
Junda designs and manufactures waterproof lithium battery packs with IP67, IP68, and IP69 protection ratings, built to operate reliably in harsh, moisture-prone conditions. These ruggedized solutions are engineered to deliver consistent power even in submerged, high-pressure, or outdoor environments.
Typical applications include:
Marine systems such as trolling motors and aquatic sensors
Outdoor monitoring equipment and industrial IoT deployments
Diving electronics and subsea robotic platforms
Military-grade underwater devices used in tactical operations
Each waterproof battery pack is developed using advanced sealing technologies and precision assembly, ensuring resistance to water ingress, dust intrusion, and mechanical stress.
Junda offers waterproof solutions across multiple chemistries and cell formats, including:
LiPo polymer packs
Whether for underwater robotics, remote sensing, or specialized outdoor gear, our waterproof battery systems are fully customizable to your voltage, capacity, and form factor requirements.
Over 10 years of hands-on experience designing battery packs for challenging underwater environments—from shallow-water consumer devices to deep-sea professional equipment.
Junda employs proprietary sealing technologies such as laser welding, epoxy potting, and silicone gaskets to achieve IP68 and IP69K protection. Each battery is engineered with built-in thermal regulation and housed in corrosion-resistant, pressure-tolerant enclosures made from marine-grade materials—ensuring safe, long-term performance in demanding conditions.
As an early specialist in custom underwater battery solutions, Junda has delivered proven performance across critical marine, defense, and monitoring applications worldwide.
Built for reliability in extreme environments, Junda’s waterproof battery packs meet global IP standards for dust and water ingress protection.
Engineered to resist dust and temporary immersion in water, Junda’s IP67-rated lithium battery packs comply with IEC 60529 / GB 4208 standards.
Tested for: 30-minute submersion at 1-meter depth
Use cases: Outdoor sensors, marine gear, tactical equipment
Designed for extended submersion and protection against dust and dirt, our IP68 battery packs maintain performance in underwater or high-humidity environments.
Tested for: Continuous submersion up to 100 meters for 5 hours
Use cases: Diving equipment, underwater robotics, remote sensing
Maximum ingress protection for high-pressure washdown and rugged industrial applications. Junda’s IP69K battery packs resist both dust and close-range water jets.
Tested for: High-pressure spray, high temperature, vibration
Use cases: Industrial robotics, cleaning machines, outdoor automation
These are international ingress protection (IP) ratings that indicate a battery pack’s resistance to dust and water:
IP67: Protected against dust and short-term water immersion (1 meter for 30 mins)
IP68: Protected against dust and long-term immersion (up to 100 meters)
IP69K: Withstands high-pressure, high-temperature water jets for industrial environments
Yes, Junda offers full customization for waterproof lithium battery packs, including:
Voltage (e.g., 7.4V, 24V, 48V)
Battery chemistry (18650, 21700, LiFePO₄, LiPo)
BMS integration, communication (CAN, RS485)
Connector types (XT60, Anderson, or custom)
Waterproof lithium batteries are ideal for:
Marine systems (trolling motors, underwater sensors)
Outdoor monitoring systems (IoT, smart meters)
Diving equipment & robotics
Military & special field operations
Junda’s battery packs are tested according to:
IEC 60529 / GB 4208 (IP rating standards)
UN 38.3, IEC 62133, MSDS, and UL (as needed)
Pressure, vibration, salt spray, and immersion testing depending on application
Yes. With IP68 and IP69K ratings, our batteries can be safely used in freshwater and saltwater conditions with proper sealing, materials, and anti-corrosion treatment.
With more than a decade of experience, Junda delivers precision-engineered lithium battery packs tailored for your unique applications. Here’s what makes us a trusted partner for global B2B clients:
At Junda, our engineering team is led by a senior battery architect with 15+ years of hands-on experience at CATL, BYD, and other industry leaders. Backed by a cross-functional team of 6 engineers, we provide full-cycle development from design and simulation to testing and certification. We’ve completed over 1,000 custom battery pack projects across sectors like eMobility, energy storage, medical devices, and industrial tools—always focusing on safety, reliability, and performance.
Junda operates under a strict ISO 9001:2015-certified quality management system, overseen by our QA director and implemented across every department. From incoming cell inspection to final pack aging tests, every step is digitally tracked and traceable. Our system ensures stable supply chain sourcing, controlled assembly processes, and compliance with industry benchmarks such as UN38.3, CE, and IEC 62133.
Junda’s battery pack assembly process integrates mechanical, electrical, and thermal design tailored to your use case. Our capabilities include IP67/IP68 waterproof housing, high-discharge BMS systems, CAN/RS485 communication protocols, and reinforced designs for vibration or extreme environments. We conduct cell sorting, welding, insulation, balancing, and aging tests in-house to ensure consistent performance and longevity.
From your first inquiry to final delivery, we provide responsive, multilingual support backed by a dedicated sales and engineering team. We guide clients through technical evaluation, prototyping, compliance, and logistics—ensuring a transparent, stress-free experience. Whether you need an urgent sample or a long-term OEM solution, we’re here to make your battery development process efficient and reliable.
Share your voltage, size, application, and quantity needs—we’ll assess your project quickly.
Our engineers will optimize the design, confirm details, and provide samples if needed.
Once approved, we start production and arrange fast, secure shipping to your destination.
Need a custom lithium battery pack? Just send us your specs—we’ll help you choose the right voltage, case, and configuration for your application.
At JUNDA, we make customization easy. Follow these 3 simple steps to start today:
Send your battery requirements — voltage, capacity, casing type, or upload drawings/photos.
We’ll evaluate your specs and recommend the best configuration. A detailed quote will be sent within 24 hours.
After approval and deposit, we start production. Shipping and tracking will be arranged for fast, secure delivery.
