PowerPacks line—robust, long-
lifespan battery systems (up to 25
years) that power everything from
portable sensors to large-scale
underwater platforms.
Engineered for operation in harsh
subsea environments, the
PowerPacks come in a variety of
pressure-tolerant housings
including:
● Titanium: for ultra-deep
missions up to 6000m
● Super-Duplex Stainless Steel:
rugged and corrosion-resistant,
also to 6000m
● Marine-grade Aluminum:
optimized for shallower
operations up to 1000m
BUILT FOR POWER, PROVEN IN
THE FIELD
SubCtech’s battery systems
undergo extensive qualification
testing—including resistance to
shock, vibration, thermal
variation, and electromagnetic
interference. All systems are built
to meet or exceed:
● UN T38.3 (transport safety)
● API17F / API17Q (subsea
equipment reliability)
● MIL-STD, DNV 2.7-3 (portable
offshore units)
The Li-Ion-based PowerPacks
offer automatic protection
against overvoltage,
undervoltage, overcurrent,
overheating, overcharging, and
short circuits and smart algorithm
for complex ESS system.
An intelligent Battery
Management System (SmartBMS)
constantly monitors and
optimizes performance from
individual cells to full module
arrays.
These systems also support AI-
based predictive analytics and
remote diagnostics—enhancing
reliability while minimising
downtime.
PowerPacks can deliver higher
peak currents, operate in sub-
zero temperatures, and support
long-term deployments with
minimal maintenance.
SUBSEA ESS: POWERING THE
ENERGY TRANSITION
A major milestone for SubCtech
is the development of a modular,
scalable Subsea Energy Storage
System (ESS)—the first of its kind
to be certified under API17F and
reach TRL 6 (Technology
Readiness Level 6), validated in
real-world offshore deployment.
The ESS includes:
● Two 1 MWh Battery Storage
Skids (BSS)
● Integrated Power Skid (AC/DC
converter)
FAULT FINDING • CONSTRUCTION • DECOMMISSIONING
Subsea Test Tools
www.c-kore.com
Tel: +44 (0)1904 215161 • Email: sales@C-Kore.com
Insulation Resistance
Electrical TDR
Optical TDR
Sensor Monitor
C-Kore’s patented test tools automate the entire
testing process, achieving significant cost savings. It’s
safe for use on all subsea infrastructure, giving you
better data much faster without extra personnel.
Now with
Optical TDR