High Capacity Advanced Underwater Lithium-ion Battery
Model:
SYEV010259517HC
Cell Chemistry:
NMC (Nickel Manganese Cobalt)
Nominal Voltage:
28.8 V
Nominal Capacity:
517 Ah
Nominal Energy:
13390 Wh
Internal Resistance:
< 100 mΩ
Communication Method:
CAN Communication, Enable / RS485
Charging Voltage:
29.4 V
Recommended Float Voltage (Standby):
29 V
Max Charge Current:
50 A
Recommended Charge Current:
40 A
Charge Temperature Range:
10°C to 45°C
Operating Voltage Range:
18 V to 29.4 V
Discharge Cut-off Voltage:
18.9 V
Standard Discharge Current:
30 A
Max Discharge Current:
50 A
Pulse Discharge Current:
60 A
Discharge Temperature Range:
0°C to 45°C
Dimensions (L x W x H):
R209 × 835 mm (±3 mm)
Casing:
Anodised Aluminium Enclosure
IP Rating:
IP67
Storage (<1 Month):
0°C to 45°C, < 75% RH
Storage (<3 Months):
-10°C to 45°C, < 70% RH
Recommended Storage Condition:
25°C, 50% SOC, 70% RH
Self-Discharge (Residual Capacity):
≤3% per month; ≤15% per year
Self-Discharge (Reversible Capacity):
≤1.5% per month; ≤8% per year
Description of the Product
The 28.8V 517Ah (13.39 kWh) Lithium-ion Battery Pack is a high-reliability subsea energy system engineered for underwater and underground deployment where long-duration standby and dependable power delivery are critical. Designed to supply continuous and stable power to remotely operated devices, sensors, communication modules, and autonomous systems, the battery ensures operational readiness even after extended storage periods.
Integrated with an advanced Smart Battery Management System (BMS), the pack features intelligent real-time monitoring, high-speed CAN communication, and RS485 interface for seamless data exchange and system integration. The BMS performs continuous voltage, current, and temperature analysis, SOC/SOH estimation, fault diagnostics, and comprehensive event logging with full operational data storage for lifecycle tracking and predictive maintenance.
Built using high-performance NMC cells and housed in an IP67-rated anodised aluminium enclosure, the system provides excellent thermal stability, low self-discharge characteristics, and long-term energy retention. It is optimized for months-long storage while maintaining readiness to deliver controlled, high-efficiency output to connected underwater or remote infrastructure systems.
Integrated with an advanced Smart Battery Management System (BMS), the pack features intelligent real-time monitoring, high-speed CAN communication, and RS485 interface for seamless data exchange and system integration. The BMS performs continuous voltage, current, and temperature analysis, SOC/SOH estimation, fault diagnostics, and comprehensive event logging with full operational data storage for lifecycle tracking and predictive maintenance.
Built using high-performance NMC cells and housed in an IP67-rated anodised aluminium enclosure, the system provides excellent thermal stability, low self-discharge characteristics, and long-term energy retention. It is optimized for months-long storage while maintaining readiness to deliver controlled, high-efficiency output to connected underwater or remote infrastructure systems.
Note: This product is fully customizable to match your unique requirements — including voltage, capacity, application type, design specifications, shape, and size. Reach out to us to build a solution tailored specifically for your equipment or vehicle.