Home >> BMW >> 2021 >> X5 xDrive45e >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Battery Management Systems >> General Electrical System - Repair -- X5 (1 Of 2) (G05) >> 61 20 Battery >> 61 20 900 Disconnecting and connecting battery ground lead (All negative battery cables) (X5 models except PHEV, 2019-2022) >> Installing the battery cover