Imported goods
Li-ion Battery (SubCtech GmbH)
SubCtech GmbH is a team with over 30 years of subsea and marine technology experience and continues to provide underwater technology, subsea solutions, and marine monitoring systems.
SubCtech’s Li-ion rechargeable battery is optimized for marine use and is built in a titanium pressure-resistant container for depths of up to 6000m.
The batteries can be recharged with a dedicated charger without removing the pressure-resistant container and can be used repeatedly.
For more information, Please visit SubCtech’s page:https://subctech.com/
| Product name | Long-John | Big-Jim | Big-JimXL |
| Voltage/Capacity
*with optional “A” cell |
14.4V-46Ah/60Ah*
25.2V-26/33Ah* 46.8V-16Ah/20Ah* 50.4V-16Ah/20Ah* |
14.4V-140Ah/180Ah*
14.4V-172Ah 25.2V-70Ah/90Ah* 46.8V-33Ah/43Ah* 50.4V-33Ah/43Ah* |
14.4V-280Ah/361Ah*
14.4V-344Ah 25.2V-140Ah/181Ah* 46.8V-70Ah/90Ah* 50.4V-70Ah/90Ah* |
| Diameter (mm) | 90 | 168/180 | 168/180 |
| Length (mm) | 512 | 372/390 | 638/630 |
| Weight (kg) | Air:8.5 , Sea water:5 | Air:17/25,
Sea water:9/15 |
Air:30/42,
Sea water:15/25 |
| Housing | Corrosion-free titanium, 300 m – full ocean depth, Customizing on request | ||
| Operation temperature (℃) | -20 – +60 | ||
| Chargeing temperature (℃) | 0 – +45 | ||
| Storage temperature(short time) (℃) | -20 – +60 | ||
| Self-discharge | >300 cycles for 80% remaining capacity, optional 3000+ cycles with special conditioning BMS | ||
| Protection | Overcharge, Deep discharge, Current limit, Overheating | ||