These latest-generation lithium-ion battery-packs have been developed by Redback in conjunction with a world leading manufacturer and are compatible with all the machines in Redback's extensive 40v range. You can choose between 2Ah, 4Ah or 6Ah models, with all units boasting convenient charge-level displays; and electronic cell-monitoring for extended battery-life. Redback lithium-ion batteries are available in the UK exclusively through MowDirect!