F80/F82 Battery Life Survey

[EosDigital]

2015
32k miles
Original battery
Mostly garaged for last three years

Although I use a CTEK Lithium charger, I don't ever leave it connected. Instead, I top it off every couple of days to let the battery cycle from lower charge levels. It's more work for me to manually recharge it at least once per week, but I've read that can be better for battery health than having a tender maintain the charge level between 90-95% for weeks or months. Either way, so far so good.

[Agamemnon]

Mine is a 2016 M3C garage Queen with 14,000 km. I insure it year round and I try to drive it every few weeks during the winter when weather permits to warm up the fluids and keep the tires from flat spotting. About every three weeks I put the CTEK charger on. No problems to date with the battery. I asked my service tech about battery life last service and he stated that he had encountered no problems with the F80/F82 generation to date. Coming up to 8 years and it does make me nervous as I usually do a summer trip to the Kootenays. No BMW dealers there so I don’t want to run into problems out of town. Kind of a costly precautionary replacement so “what does one do”? Hopefully it craps out while I am in the city.

[M3orbust]

2016, 42k on the clock, original battery driven a few times a week, stored in winter. I run the ctek. To note my carly app said battery was in great shape !! I was not expecting that out of a original 8 yeat battery

[codys21]

Early model 2015 (built in 2014), original battery, 62,000 miles. It completely, fully died and remained dead for about a week due to serpentine belt tear from track day. I purchased a CTEK and it fixed the battery without needing replacing. Have never used CTEK since then (2.5 years ago). Use to drive about 4 days a week and now drive maybe once a week.

[acnomad]

2015 M3
90K miles
3 or 4 days/week usage
Original battery

Has anyone changed one on their F80/82?

[Busa1]

2015 with 28,200 miles. It has the original battery and gets driven a few times a week. It gets stored in winter with a Ctek.

[hC1001]

2016 with 118K miles. Original battery. Driven maybe once every two weeks but mostly sitting during winter. I use a battery tender 4 amp lithium charger to charge it up if the car hasnt been driven in a month.

[mpower79]

Originally Posted by Busa1

2015 with 28,200 miles. It has the original battery and gets driven a few times a week. It gets stored in winter with a Ctek.

28200 miles from 2015 omg

[N55Msport]

2016 with 100,000 miles
Original battery
Daily driver
Ctek used only if car is going to sit for 3 days +

[NickyC]

Nice to see these batteries have long lives!

[McIntoshMotorSports]

Originally Posted by N55Msport

2016 with 100,000 miles
Original battery
Daily driver
Ctek used only if car is going to sit for 3 days +

Just about the same here!
2016 with 96K miles, daily driven with original battery. In bimmerlink I see about 60-70% life left depending on how long it sits.
Usually try to remember to remove the wireless OBD adapter if it’ll be sitting for more than a day or two.

Likely will upgrade to Antigravity at some point.

[Rich150001]

2016 36k miles original battery; Car used to sit more but it has become a daily driver now.

[kevinthestan]

2015
140,000 km
daily driven
long underground parking which i let it coast down a few floors.

Original battery and no issues. I even have a 24/7 dashcam (bi channel) running on it for the past 4 ish years.

[WhiteFox]

2017 and no issues fingers crossed

[NSX2M4]

2019 original battery. Never keep it on a tender and I have the oem trickle charger but it's driven weekly. Nothing ever broke on this car for me except a faulty ac sensor which resulted in a frozen evaporator coil the first week of purchase.

[tomas3314]

Originally Posted by HermCT1

I believe I've read nearly every thread on the F80/F84 Lithium Ion battery in terms of price and it being BMW proprietary. I have a 2015 F80 with 23,000 miles which spent its first 5 years in San Diego, now it is in Connecticut in my garage for the winter on the CTEK charger.

I'm interested in what people are seeing for longevity on the battery.

Can you provide:

1. Model Year
2. Whether the original battery has been replace
3. If battery has been replaced, replacement mileage and age of battery at replacement.
4. Price you paid for battery
5. Whether you changed yourself.

Thanks in advance for your feedback.

2017 M3 ...87k miles, still on original battery

[heymarkv]

2018 M4 still on the original battery with 22k miles; on a CTEK lithium ion tender from November - April / May.

It's impressive how long these batteries seem to be lasting, but definitely looking into Antigravity's battery as a possible future replacement compared to OEM.

[Vegetable]

2019 M4 193,000 miles original battery

[Slow M3]

2015MY, 23k miles, original battery. Drive maybe once per week to get the blood pumping (mine and the car)

[Yuille36]

2017, 11,200 miles, original battery

[ajbM4cab]

Just picked my F83 up yesterday from a winter hibernation in a lockup. Last started October 22nd 2023.
Never fitted a Ctech or other battery conditioner and was a bit worried as no alarm red LED flashing. Assumed it was dead.
Car would not open with remote so used the key to open drivers door.
Car then sprung into life with alarm going off. The key fob then worked to turn off the alarm with the car starting no problem from the button.
Put the ctech on when I got home and it showed as 2 bars. Now on a ctech for the next few weeks. Planning on keeping the ctech on for a good while. Now starting to take the top up charge.
Car is July 2019 with 24k miles.

[John dillinger]

can someone give me the charger their using and how to hook it up ? car sits unfortunately