Model: BL1041B
Makita 12V 4.0Ah CXT Lithium-Ion Battery with indicator.

Features :

• Lithium-Ion battery delivers longer run time and lower self-discharge. 
  
• Features an integrated L.E.D. battery charge level indicator. 
  
• Compact design for less weight. 
  
• Part of the expanding 12V max CXT™ tool series, combining performance with superior ergonomics in a compact size. 
  
• Use only with Makita chargers DC10WD and DC10SB. 
  
• Not compatible with 12V max pod-style tools or chargers