PANASONIC EY7540LN2S 144V IMPACT DRIVER LITHIUMION 2 X 30ah LIION BATTERIES Panasonic launches its Cobalt LithiumIon impact driver the EY7540 With its incredibly light weight impressive power & run time its sure to be a fast seller Panasonics Cobalt LithiumIon batteries benefit from a lower internal resistance electrical loss than manganese lithium which are the most widely used lithium batteries High electrical efficiency lets cobalt lithium batteries deliver greater output than manganese lithium batteries Cobalt lithium batteries are also less prone to increases in temperature than manganese lithium batteries helping to prevent shortening of service life due to heat The overcharge prevention sensor fitted to Panasonic Lithium drills works to prevent overdischarging discharge of the battery until voltage falls below a minimum thresholda disadvantage of lithium ion cellsThe system cuts off power to the motor before the battery voltage falls too low and flashes a warning lamp on the tools control panel to notify the user Large View Specifications Another built in feature is the battery overheat protection sensor the service life of a lithiumion battery can be degraded if the battery becomes to hot during heavy useA temperature sensor cuts off power to the motor before the battery temperature rises to a harmful level and flashes a warning lamp on the tools control panel to notify the user Also fitted with Panasonis Brushless Motor & Panasonic Electronic Switch the life span of both these items is about twice as long as conventional motors & switches No load speed soft mode 01000 rpm No load speed medium mode 01400rpm No load speed hard mode 02300rpm Impact per minute soft mode 02000ipm Impact per minute medium mode 02800ipm Impact per minute hard mode 03000ipm Max torque 150Nm Overall length 158mm Weightwith battery 145kg 31lbs Accessories Comes with 2 x 30amp LithiumIon batteries charger & case OR Purchase as a carcase only version no batteries charger or case