SKIL 4105 AA Battery '40V Max' 5.0Ah 'KEEPCOOL™' Li-Ion

  • 'ACTIVCELL™': Patented intelligent battery and tool interaction, for maximum performance and battery protection
  • Battery-level indicator conveniently displays the charge level of the battery
  • 'KEEPCOOL™': The patented battery cooling technology that ensures up to 25% longer run time and 2x the lifetime