Innovative Power Solutions for Marine

Engine Start Batteries

Engine Start

Lithium-ion engine start batteries deliver superior weight savings, extended battery life, overall lower cost of ownership, and are engineered to aviation quality standards.

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Lithium-ion Technology


NanoPhosphate® Lithium-ion battery technology offers stable chemistry, faster charging, consistent output, excellent cycle life and superior cost performance.

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Custom Power Solutions

Power Solutions

Skilled True Blue Power engineers work closely with your staff to develop unique solutions that meet your specific project requirements.

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Advanced Lithium-ion Marine Battery

The TB44 Advanced Lithium-ion Battery uses the safest and most sophisticated lithium-ion chemistry available. This provides an unmatched balance of power, safety, life and energy.

The TB44 battery starts large engines quickly and features superior energy density. NanoPhosphate® lithium-ion cells offer 3x as much energy per kilogram, resulting in a battery that is 40% lighter than older lead-acid or nickel-cadmium alternatives.

  • 46 amp-hour battery nominal at 23°C (73.4°F)
  • Weighs 51.7 lbs. (23.45 kg) — 40% lighter than older lead-acid or nickel-cadmium alternatives
  • Advanced NanoPhosphate® lithium-ion cell chemistry — 3x as much energy per kilogram
  • 10 consecutive engine starts from a single charge (diesel)
  • Fast and complete recharge in 15 minutes when the battery is fully discharged
  • Superior performance at extremely high temperatures (up to 70°C/158°F)
  • Automatic internal heater
  • Overcharge, over-discharge, over-current, short circuit, over-temperature and under-temperature protection
  • Battery Management System (BMS) includes analog and serial digital output communication
  • Higher voltage during engine start reduces starter wear and increases useful life
Marine Lithium-ion Battery


Fort Lauderdale

617 SW 3rd Avenue
Fort Lauderdale, FL 33315

Tel 954.523.2815
Fax 954.523.1967
Riviera Beach

999 West 17th Street Unit #3
Riviera Beach, FL 33404

Tel 561.863.7100
Fax 561.863.7008