Exell EBVB-266 Li-ion 14.8V Battery Fits ECOVACS V870. Replaces ECOVACS 4ICR19/65 The Exell EBVB-266 Li-ion 14.8V Battery has the highest energy density of any practical Lithium battery chemistry, three times greater than Alkaline (Zinc Manganese Dioxide) batteries. It also has the widest operating temperature range of -60?C to + 85?C. This battery has high...