Basic Batteries

Item 

Long-John 90mm 

Voltage

14.4 V 

25.2 V 

46.8 V 

50.4 V 

Capacity 

47 Ah / 60 Ah*

26 Ah / 33 Ah*

16 Ah / 20 Ah*

16 Ah / 20 Ah* 

Energy 

674 Wh / 868 Wh*

655 Wh / 844 Wh*

730 Wh / 941 Wh* 

768 Wh / 1013 Wh*

Current (see note) 

10 A 

10 A 

10 A 

10 A 

Dimensions

Ø 90 mm x 512 mm length.  

Ø 90 mm x 560 mm length.  

Weight

8.5 kg in air, 5.1 kg in sea water 

8.9 kg in air, 5.2 kg in sea water 

Item 

Big-Jim 168/180 mm

Voltage

14.4 V 

25.2 V 

46.8 V 

50.4 V 

Capacity 

140 Ah / 180 Ah*

70 Ah / 90 Ah* 

34 Ah / 43 Ah*

34 Ah / 43 Ah*

Energy 

2020 Wh / 2605 Wh*

1769 Wh / 2279 Wh*

1582 Wh / 2038 Wh*

1704 Wh / 2195 Wh*

Current (see notes) 

Typ. 12-20 A 

Typ. 12-14 A 

Typ. 5-12 A 

Typ. 5-12 A 

Dimensions -300m 

Ø 168 mm x 362 mm length. Weight: 17 kg in air, 9 kg in sea water 

Dimensions - up to 6000m 

Ø 180 mm x 384 mm length. Weight:  25 kg in air, 15 kg in sea water 

*with optional “A” cell to provide even higher capacity at same form factor

Note: no high current outputs for Long-John batteries. For high peaks, see customised section.

Optional: BMS with data interface, remote on/off input, DC/DC regulated outputs (the length will increase by up to 150 mm) 

Item 

Big-Jim XL 168/180 mm

Voltage

14.4 V 

25.2 V 

46.8 V 

50.4 V 

Capacity 

280 Ah / 362 Ah*

140 Ah / 181 Ah*

70 Ah / 90 Ah*

70 Ah / 90 Ah*

Energy 

4040 Wh / 5210 Wh*

3538 Wh / 4559 Wh*

3285 Wh / 4233 Wh*

3538 Wh / 4559 Wh*

Current (see notes) 

Typ. 10 A to 20 A 

Typ. 10 A to 20 A 

Typ. 10 A to 20 A 

Typ. 10 A to 20 A 

Dimensions -300m 

Ø 168 mm x 612 mm length. Weight:  29 kg in air, 5 kg in sea water 

Dimensions -6000m 

Ø 180 mm x 634 mm length. Weight:  41 kg in air, 25 kg in sea water 

*with optional “A” cell to provide even higher capacity at same form factor

Note: no high current outputs for Long-John batteries. For high peaks, see customised section.

Optional: BMS with data interface, remote on/off input, DC/DC regulated outputs (the length will increase by up to 150 mm) 

Specification 

Big-Jim  “M” type high capacity battery 

Voltage

14.7 V 

25.7 V 

47.7 V 

51.4 V 

Type 

Standard 

XL 

Standard 

XL 

Standard 

XL 

Standard 

XL 

Capacity 

172 Ah 

345 Ah 

86 Ah 

172 Ah 

41 Ah 

86 Ah 

41 Ah 

86 Ah 

Energy 

2536 Wh 

5073 Wh 

2220 Wh 

4439 Wh 

1984 Wh 

4122 Wh 

1984 Wh 

4439 Wh 

Notes: all other specifications as above.  

Item 

SmartCharger™ 

Charging

• Fully-automatic Li-Ion charger
• Metal housing, IP65 water protection
• Wide-input-range 90-264 VAC 50/60 Hz
• Simply plug ’n’ charge - no control elements, 3 signal LEDs

Power

100 W

300 W

500 W

750 W

Technology

• Li-ion rechargeable battery
• High-power, high safety, highly reliable industrial cells
• SubCtech's electronic for high voltages, capacities and currents
• UL / UN certified cells

Production 

• Production following IPC-A-600 and IPC-A-610 class 2; or class 3 upon request. 

Housing

• Corrosion-free titanium: operating depths up to 6000 m

Connectors

• Standard SUBCONN® e.g. SeaBattery™ compatible
• High Power
• Data interface
• Others upon request

Temperature

• Operating: -20 °C… +60 °C operating
• Charging: 0 °C… +45 °C charging 
• Storage & Transportation: Storage: -20 °C … +60 °C

Self-discharge

• <2% per year at +25 °C
• Typ. <1% per year at +4 °C

Charge cycles

• >500 cycles for 80% remaining capacity
• Optional >3000 cycles with special conditioning BMS

Protection

• Overcharge
• Deep discharge
• Current limit
• Overheating

North-Sea ADCP monitoring station during recovery

(© BSH, Germany) 

EM exploration  

(© Mundal/PGS, Norway) 

Batteries installed in trawl doors of arctic fishing vessels

© Trawl Doors

BigJim integration in anaylzer unit

© CytoSense

Gas monitoring system

(©TOHO, Japan) 

BigJim integration in Sensor frame

© AWI MARUM