High Discharge 36V 73Ah Waterproof IP68 Battery Pack
Industrial-grade underwater detection systems require robust battery solutions capable of delivering high discharge currents (up to 100A continuously) to power thrusters, motors, and heavy-load equipment in deep-water environments. Given the corrosive nature of seawater and the need for mechanical durability, the battery must offer superior waterproofing, corrosion resistance, and structural integrity while maintaining high energy density to minimize system weight and space constraints.
Our 36V 73Ah lithium pouch high discharge IP68 waterproof battery pack to meet your specific requirements.
Key features：
- Combination: 10S1P ,made of 10pcs high discharge rate P73 Pouch cells
- Waterproof IP68 for submersion up to 100M
- Waterproof 7075 aluminum alloy enclosure
- Integrated with BMS for 100A discharge rate
| No. | Item | Parameter | Remark |
|---|---|---|---|
| 1 | Nominal Voltage | 36V | 3.6V/Cell |
| 2 | Nominal Capacity | 73Ah | @0.2C |
| 3 | Minimum Capacity | 72Ah | |
| 4 | Shipment Voltage | / | |
| 5 | Initial Internal Impedance | ≤80mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 42V | 4.2V/cell |
| 7 | Standard Charge Current | 14.6A | @0.2C |
| 8 | Max. Charge Current | 36A | |
| 9 | Standard Discharge Current | 14.6A | @0.2C |
| 10 | Max. Discharge Current | 100A | |
| 11 | Burst Discharge Current | 200A | ≤10ms |
| 12 | Discharge Cut-off Voltage | 27V | 2.7V/Cell |
| 13 | Cycle Life | ≥5000 cycles | Retention: ≥70% |
| 14 | Charge Temperature | 0°C~+60°C | Standard Charge |
| 15 | Discharge Temperature | -20°C~ +60°C | Standard Discharge |
| 16 | Storage Temperature | -20°C~ +35°C | ≤3 Months |
| -20°C~ +25°C | ≤1 Year | ||
| 17 | Weight | About 20 | kg |
| 18 | Special Request | IP68 Waterproof | underwater 100M for 10 minutes |
36V 73Ah LiFePO4 Battery Pack FAQs
How deep underwater can this battery operate?
36V 73Ah IP68 battery is IP68-rated and engineered to operate reliably at depths of up to 100 meters, providing excellent sealing and pressure resistance for long-term underwater use.
What is the maximum discharge current?
The battery features with a high-performance BMS that supports a continuous discharge current of 100A, ensuring stable performance for high-load applications.
What is the enclosure made of? Is it corrosion-resistant?
The enclosure contains 7075 aerospace-grade aluminum alloy, which is lightweight, high-strength, and highly corrosion-resistant—perfect for use in seawater and harsh aquatic environments.
Can the battery be customized?
Yes. We offer customizable options including connector types, dimensions, and communication protocols. Provide OEM/ODM services to meet specific integration requirements.
Are custom batteries certified for CE, UN38.3, UL, etc.?
We ensure all custom battery solutions comply with internationally recognized safety standards. Our certifications include UN 38.3, MSDS, CE, RoHS, and UL.
Tailored Customization
Our design team can create custom battery designs for just about any device or machine.
Timely Delivery
Our efficient production and distribution process gets your product delivered in a timely manner.
Quality Guarantee
We stand by our products and guarantee you’ll be happy with your purchase.
