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Home >> BMW >> 2021 >> X5 sDrive40i >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> General Electrical System - Repair -- X5 (1 Of 2) (G05) >> 61 21 Battery With Holder >> 61 21 028 Charging battery (all X5 models, 2019-2022)

61 21 028 Charging battery (all X5 models, 2019-2022)

IMPORTANT: Lead-acid battery, AGM battery: 

To prevent the intelligent battery sensor from malfunctioning, use the charging points in the engine compartment.

OBSERVE INSTRUCTIONS ON INTELLIGENT BATTERY SENSOR/BATTERY ELECTRONICS .

NOTE: Use BMW-recommended charging computers* to charge the battery.

*Sourcing reference applicable BMW Workshop Equipment Catalog

Pay attention when charging the lithium ion battery! 

Existing chargers that are designed for the lead-acid or AGM battery generate a charging voltage that is too high  for the lithium-ion battery.

If the charging voltage is too high, the electronic disconnect switch of the Li-ion battery can open, which generates a CCM message in the instrument cluster.

BEFORE CHARGING A LITHIUM ION BATTERY, ADJUST THE CHARGING VOLTAGE OF EXISTING CHARGER ADAPTERS ONCE .