Using the BMW Accessory Battery Charger - How To

Learn in this video how you can recharge the 12V lithium-ion or lead-acid battery of your BMW with the BMW Battery Charger. Make sure your BMW is turned off before opening the bonnet. Before using the BMW Battery charger, make sure to refer to your vehicle’s owner handbook and comply to all safety instructions. Disconnect the clamps from the battery charger, plug the mains plug into the electric socket, and press the “Mode” button on the charger until the correct program is selected. The LEDs on the charge unit indicate the charging programs for “cars” or “motorcycles” with “normal batteries” or with “lithium-ion batteries”. Disconnect the mains plug, and connect the red clamp to the positive pole of the battery or to the jump lead post. Connect the black clamp to an earth post on the car, making sure the black clamp is not connected close to the battery or the petrol line. Connect the clamps to the charger. Insert the mains plug of the charger into the mains socket. Do not switch on the car’s ignition whilst the battery is being charged. The charging procedure starts fully automatically. The charging cycle display shows the current charge level. You can stop the charging progress at any time by disconnecting the mains cable from the mains socket. Once you’ve stopped charging, remove the black clamp from the earth post. Remove the red clamp from the positive pole of the battery or from the jump lead post.

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[giovannialfano]

insert that simple procedure also printed somewhere into the product itself, avoiding me to search on youtube, could be also a good idea.

[Snewpi]

Which charging mode should I be using for the 2022 Z4 M40i? I believe it is Lithium Ion but just want to be sure since there are two different charge modes.

[frikkiestroebel]

Can this charger be connected indefinitely? Or should it be disconnected after charging?

[trustedkix]

My bmw m4 battery is completely dead. Will this charge the car back to normal levels from a conpletely flat battery?

[rvarm]

Why you cant turn ignition on while connected to the battery charger? It is supossed to manage properly the voltage (thats why you dont connect it to the battery directly), right?

[VictorDucorse]

Do the new 2022 4 series Gand Coupe (non electric) have lithium battery? I have the BMW battery charger as the one in your video. Thanks

[AXSLV]

It would be more useful if you could just bring back the battery meter in the dashboard

[GrizzlyUrsusArctos]

I wish you would respond to this question: do you leave this plugged in or do you charge intermittently on a car that’s rarely driven?

[tonyacevedo]

Very informative… bout to give it a try rn

[Jcauto-tr]

I have a 2020 330i and my auxiliary battery is giving me issues, I’m wondering if I have to buy one of these .. it has to be a BMW or could be any other brand ? Thanks

[wendy_wendy]

Hi @BMW, I have a battery tester with CCA. Should I connect the tester to the battery directly, or to the jump leads?

[ysfoz]

Does it matter if the charger is connected to the battery directly in the trunk, or to the jump post?

[nathanlambert]

Does anyone have the new bmw m3 or m4, im trying to find a proper trickle charger but I can’t seem to find any lithium ion ones other than the one with the bmw stamp on it. The ctek trickle charger available online is for LiFePO4, which is lithium iron phosphate. I doubt that’s the correct one to use. I’m just curious what types of trickle charges other people may be using for their new m3/m4

[Braveheart-idfl]

I have bought / used this my question is when it goes green ! Can you leave it charging or take the charger off? Cars laid up as a second car appreciate response 🏴󠁧󠁢󠁥󠁮󠁧󠁿👍🏻

[TB-wbuv]

No ignition?
Wanted to charge the battery during MHD flash…don’t bmw itself charge and switch ignition on if necessary for service or maintaining?

[cucusca]

Hi, How to connect the charger to a 2021 BMW M440i XDr Coupe?

[jennyosullivan]

Hi we have a 2024 M2 and literally took delivery in march but its rarely used and its saying replace battery? its a brand new car so I am confused, any way I bought the BMW Charger and it got to number 7 on the charger but its still telling me to replace battery, so my question is do I let the charge go to 8 on the charger and how long do I leave it on before it will stop saying replace battery ?
and how does one do a trickle charge on the BMW charger as there are no helpful instructions with the charger at all no explantions which is frustrating.... can someone give me more details on the 1-8 lights on the charger as the mode is fairly straight forward as far 2sec it selects the battery in the car any way but the 1-8 lights dont help or explain anything ? and to a NON Electrican this is gibberish!

[tatianaivanova]

в описании к аксессуару, указывайте оригинальный артикул! где искать номер артикула?

[maverickelbow]

Is this suitable for EFB batteries aswell?

[CaptainCarling]

Can I just leave this plugged in when the cars not in use for conditioning?