Offers cordless operation with sealed, maintenance free Lithium-Iron Phosphate batteries. Deliver up to 2,000 charging cycles to boost productivity. Stay cooler than other battery technology on the market. Can be rapidly recharged. Have an extremely low self discharge rate. Provide a virtually flat discharge curve, which means maximum power is available until fully discharged (no “voltage sag” as with lead acid batteries). Do not suffer from "thermal runaway".