Battery Kit Product Type Battery Kit Features Li-ion Extended Range Battery Kit Orange Series Ventis MX4 Ventis Pro16 For Battery Chemistry Lithium Ion For Use With Ventis MX4 Ventis Pro16 Output Voltage 3.7V DC Battery Life 12 hr Standards UL/CSA/ATEX/IECEX/EAC (GOST-R-GOST-K)/KC (KOSHA)/MED/SANS 1515