Custom IP68 Waterproof Battery Packs — Built for the Deep
-Depth-rated from 1m to 100m. Up to 6 hours. Fully customized to your application.
OEM and ODM lithium battery packs engineered for continuous deep-water submersion — underwater drones, eFoils, marine vessels, aquatic robots, and beyond….
What IP68 Actually Means — And Why the Spec You Declare Matters
IP68 is not a fixed depth. It is a commitment — to engineer and test a battery to whatever submersion depth and duration your application actually demands. Our custom IP68 lithium battery packs are manufactured and tested to continuous submersion from 1 meter to 100 meters, for up to 6 hours, with every parameter — voltage, capacity, enclosure geometry, sealing architecture, connector type, and BMS protocol — defined by your project specification.
IP68 is defined under IEC 60529 as protection against continuous immersion under conditions specified by the manufacturer. Unlike IP67, which has a fixed test condition of 1 meter for 30 minutes, IP68 requires the manufacturer to declare a depth and duration appropriate to the product’s real-world operating environment — and then test and certify to that declared specification. Every unit ships with documented test results so your product documentation is fully backed by evidence.
Depth-Rated 1m–100m, Up to 6 hours
Saltwater-Ready
Dual-Barrier Sealing
Chemistry Choice
Custom BMS Protocols
Test Documentation
IP68 Waterproof Battery Solutions — By Application
Select the scenario closest to your product — or submit your specification directly for a custom engineering proposal.
Underwater Scooters & Diver Propulsion Vehicles
Electric Boats & Marine Propulsion
Deep Underwater Drones & AUVs
Aquatic Robots & Autonomous Systems
Underwater Power Tools & Equipment
What We Customize — Full Parameter Table
Every IP68 battery pack is engineered from the ground up to your project specification. All parameters below are customizable:
| Paramètre | Customizable Range |
|---|---|
| Chimie | LiFePO4 / Li-ion / Li-polymer |
| Tension | 3.7V – 96V+ |
| Capacité | 1Ah – 500Ah+ |
| Waterproof Depth | 1m – 100m (per project declaration) |
| Submersion Duration | Up to 6 hours (per project declaration) |
| Matériau de l'enveloppe | Anodized aluminum / 316 stainless steel / engineering plastic |
| Sealing Method | Silicone O-ring + epoxy potting / laser weld / ultrasonic weld |
| Type de connecteur | SubConn / XT90 waterproof / Anderson / Cobalt / custom |
| BMS Protocol | UART / RS485 / CAN Bus / SMBus / no BMS |
| Température de fonctionnement | -20°C to +60°C (extended range available) |
| Certifications | UN38.3 / CE / RoHS / UL (project basis) |
| MOQ | Negotiable — OEM & ODM both supported |
OEM Process — From Specification to Shipment
Our IP68 battery packs are manufactured and tested to depths from 1 meter to 100 meters, for submersion durations of up to 6 hours, with the exact specification declared per project. IP68 does not define a universal depth or time — the standard requires the manufacturer to specify the conditions appropriate to the product's real operating environment. When you submit your project requirements, tell us your operating depth, duration, and water type (fresh or saltwater), and we engineer and test to that specification.
Every completed unit undergoes two-stage testing before leaving the factory: first, an air-pressure leak check that confirms enclosure seal integrity without immersion; second, water immersion at the declared depth and duration. We provide pressure log records, test photos, and a test report with every OEM delivery. For prototype orders, this documentation supports your own product validation and certification process.
We use a dual-barrier sealing architecture: silicone O-ring gaskets on all mechanical interfaces, combined with epoxy potting on internal cell and BMS compartments. The O-ring provides the primary dynamic seal at assembly interfaces; the epoxy potting provides a secondary barrier that protects internal electronics even if the outer enclosure is compromised. For saltwater applications, we specify EPDM or Viton O-ring materials rated for saltwater chemical resistance. Single-barrier sealing — O-ring only, or potting only — is not adequate for long-duration deep-water deployment.
Yes, and saltwater applications require a different material specification than freshwater. Saltwater is approximately 80 times more conductive than freshwater, meaning a micro-crack in an enclosure that would be harmless in a pool creates an immediate short-circuit risk in the ocean. For marine-rated packs, we specify anodized aluminum or 316 stainless steel enclosures, EPDM or Viton O-rings, gold-plated or corrosion-resistant connector contacts, and conformal-coated internal PCBs as standard. Specify saltwater use at inquiry stage so the correct material specification is applied from the start.
MOQ depends on customization complexity and whether new enclosure tooling is required. For projects using existing enclosure designs, MOQ can be as low as 10–20 units for prototype validation. Projects requiring new enclosure tooling involve a tooling cost discussion alongside volume planning. We support both early-stage OEM programs with low initial volume and established production programs requiring consistent long-term supply.
All battery packs are manufactured with UN38.3 transport compliance as standard. CE and RoHS certification are available for European markets. UL listing can be supported on a project basis. We provide full test reports and compliance documentation to support your own product certification process — useful for CE marking, FCC, or market-specific requirements.
Yes — this is exactly how IP68 is intended to work. The IEC 60529 standard requires manufacturers to declare the specific conditions under which their IP68 rating applies. We provide you with the test documentation and declared spec that you then reproduce in your product manual, datasheet, and regulatory filings. Your product carries the IP68 rating with your specific declared conditions — for example, "IP68: Waterproof to 30m for up to 4 hours" — backed by our test records.
