Svenner

Solid State Tech – DNV Approved

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Using mostly solid instead of liquid electrolytes

Can withstand overcharging, extreme heat and punctures without harm

With a hardware override switch

10‘000+ cycle life

Solid State technology battery dnv approved

SOLID STATE TECHNOLOGY BATTERY CELLS

Electrical Characteristics	Solid State Technology
Chemistry	Lithium-ion
Nominal Voltage	51.2V factor of
Energy	14.336kWh factor of
Cycle Life	10’000 @ 80% DoD
Voltage	16 in series, 24 in parallel

Standard Charge	Solid State Technology
Max Continues Charge	220 A / 0.8C
Max Charge	280 A / 1C

Standard Discharge	Solid State Technology
Max Continues Discharge	280 A / 1C
Peak Discharge	350A 15 min

Environmental	Solid State Technology
Temp Range	-10°C to 60°C
Ideal Working Temperature	5℃ to 45℃

Mechanical	Solid State Technology
Battery Case	ALU / SS top cover
Dimensions (LWH) mm	810 x 425 x 250 mm
System Mount	Self-Stackable or Rack
Weight	110kg
Communication mode	CANbus 250k
IP Rating	IP 65, IP 67 on request
Certifications	CE, UN 38.3, DNV
General Warranty	2 years, 3 years an option
Cycle life Warranty	5 years

safety points

Withstands 6x overcharge & 8 mm nail puncture: no thermic reaction
Dual-core lockstep CPU BMS ensures redundancy and continuous monitoring HIVIL interlock & internal water-leak detection for module-level protection
DNV Design Option 1: No propagation – no module gas ducting needed; any fire fully contained within the module.
With a hardware override switch some electronic control systems can be bypassed, ensuring reliable power access in any situation
Each module has its own fuse

PERFORMANCE AND LIFETIME

Like all batteries, also EPTechnologies batteries age — by usage and by calendar aging.
Calendar aging is around 1% per year if kept below 30 °C storage temperature and stored at 50–60 % SOC (State of Charge).

With repeated charging and discharging comes cyclical ageing.

DOD	Cycle life depending on SOC usage
50%	15’000
60%	13’000
70%	12’000
80%	10’000
90%	9’000
100%	8’000

DOD: Depth of Discharge

SOC: State of Charge

It’s more than a battery — it’s a power platform designed to protect what matters most at sea.

ESTIMATED LIFE ASSUMING THAT

Never below 5% SOC better 10%
Never over 95% SOC
Average temperature at 25 °C, never above 50 °C.
Normally max. 1 C discharge
Normally max 0.5C charge is 8000 cycles and remaining capacity is 75%

STRING DATA

Each string can consist of 1 to 15 batteries in series for nominal, up to 770 V if needed.
Each string has a string controller.
The string controllers have manual and remote disconnect switches and pre-charge

MULTI-STRING OR PARALLEL

Pack control Unit PCU has double communication lines.
Optional slave PCU control unit that can take over if the master fails is an option.
Up to 16 strings in parallel per pack controller.