[RajuGrewal]

Hello. New M5 G90 have approx 40 miles of electric range. i5 have range of approx 250miles. So seems like if M5 used in city driving for shord distance daily on ev only then it's battery life cycle will be completed 6 times quickly than i5.
for example for drive i5 200+ miles (in few days without daily charging), it's battery's 1 cycle will be used where m5 will use 6 cycles.
So we will need to replace M5 battery within few years?
Thanks.

[Alan l.]

Logically that makes sense but nobody is going to be able to confirm that unless you check back in a few years.

My opinion is that if you plan on driving this car in EV only mode down to being depleted everyday then this is probably the wrong car for you. For me plan to use it for those early morning dropping the kids off at school only and once i'm doing anything beyond that it will be with the V8.

[Crazy1323]

It mainly depends on the battery chemistry. A “lithium battery” is a family of batteries, not a specific type. Think of it like the word “soda”. There are lots of different types of soda that taste very different. Not just Coke vs Pepsi, but Coke vs Ginger Ale vs Root Beer.

The two main ones in electric vehicles are Lithium Iron Phosphate (LFP) and Nickel Manganese Cobalt (NMC).

NMC batteries are more energy dense and handle temperature swings better, but may only have 800-1,000 full cycles in them. Because these are more energy dense, many car companies use them.

LFP batteries on the other hand are a little less energy dense, but much more stable. You can poke a hole in an LFP battery or even throw it in a fire and it won’t explode/burn. LFP cells typically have a life of 3,000 cycles, but depending on the charge/discharge curves can last up to 6,000 cycles. LFP also doesn’t perform as well below freezing temps.

I couldn’t find specifically what chemistry the G90/G99 will use. I think BMW has historically used NMC, but said a few years ago they were looking into LFP batteries. Personally, I would much rather have an LFP battery in a PHEV, especially if I plan on buying rather than leasing.