2 x 12V 50 Ah deep-cycle Xplorer Lithium Batteries. Most suitable for regular use and the lightest batteries on the market. Replaces AGM and GEL 42AH, 45AH & 50AH   Features Capable of up to 5000 cycles Lithium technology Deep-cycle, long-life Vibration-resistant Mountable in any orientation Environmentally friendly, no toxic materials Sealed and safe, maintenance-free design Non-spill, no leakage Can be charged using normal AGM battery chargers.   Range Information Xplorer lithium-ion batteries possess the best cycle life of any batteries available from Alpha Batteries, achieving a phenomenal peak performance of over 5000 cycles.   Technology Low-Down Xplorer lithium batteries are up to 66% lighter than lead acid. This significant reduction in weight results in greater fuel economy, more speed and less wear and tear on your craft in the long term. They are also up to 33% smaller than lead acid equivalents, reducing the space required for storage and f