Metabo 625367000 18v LiHD 4.0Ah Compact Battery This Metabo 18v LiHD 4.0Ah Li-Ion Battery is a new dimension in battery technology. LiHD battery packs are for the ultimate performance and extremely long application with minimal temperature generation. The combination of new high-performance battery cells and completely newly developed components in the pack ensure that maximum power remains available for an extremely long time. The revolutionary LiHD high-performance cells have a completely new electro-mechanical design with significantly stronger conductors,which in combination with more active material, permit a significant increase in the accessible power output, resulting in more usable energy for you. The LiHD batteries offer 67% more power, 87% longer run time and 100% longer service life. FEATURES Ultra M technology: Intelligent battery management for long-lasting battery packs with a 3 year guarantee Patented “AIR COOLED“ charging technology Permanent Electronic Single Cell Protection (ESCP) when charging, for particularly long life Processor-controlled charge and discharge management Capacity display with almost no self-discharge No memory effect SPECIFICATION Voltage: 18v Capacity of Battery Pack: 4.0 Ah Air Cooled: Yes