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Ultralife Lithium Deep Cycle


Deep Cycle Lithium Ferrous Phosphate batteries for Marine, Renewables, Auxiliary On-Board Power & Portable Power

Ultralife Lithium Deep Cycle Batteries, using Lithium Iron Phosphate (LiFePO₄) technology offer excellent weight saving within the same footprint as industry standard lead acid (VRLA) alternatives. The internal management system allows them to be used as an alternative to AGM or GEL batteries with minimal changes. LiFePO₄  is also an intrinsically safer chemistry with improved safety compared to other lithium options.

The integrated management system monitors the current, voltage and temperature of the battery and the cells. When the battery is used outside of the recommended operating parameters it will react and isolate the battery from the system maintaining safety. When the source of the error is removed the system resets so that the battery can be used again.

Features & Benefits

  • Between a half and a third lighter than VRLA
  • Very high cycle life compared to VRLA
  • Integrated battery management including cell balancing
  • Fast recharge and superior cycle performance
  • Robust, sealed construction, no maintenance
  • Discharge temperature: -20°C to 60°C
  • Industry-standard sizes
  • IEC62133 Certified


  • Portable Power
  • Auxiliary Vehicle Power
  • Marine
  • Solar / Renewable Power
  • Defence
  • Medical Carts
  • Environmental Control Back-up Systems


Unit 1, DMS technologies,
Belbins Business Park,
Cupernham Lane,
Romsey, SO51 7JF


Mon-Fri: 9am - 5pm
Sat-Sun: Closed

Call Us

+44 (0) 1794 525400