[wgreen71]

My wife heard that using a level 2 charger all the time is bad for the battery. Any truth to that or have you seen this to be true?

[jad03060]

Using a CCS (DC fast charge) can be problematic when used long-term, but the X5 doesn't have that input.

WIth the size of the battery, 16A input is pretty small, and the X5 has liquid cooling that should keep the batteries from getting hot. Some (not many any more) still use air cooled batteries, and yes, faster charging, especially in places like the US desert southwest where it could be over 110F can have issues the faster you try to charge them. From an energy standpoint, level 2 is more efficient. The charging is IN the vehicle...the EVSE is a fancy on/off power cord with some safety interlocks built-in. The AC-DC conversion power supply in the vehicle is more efficient when fed with a level 2 versus a level 1 as it's easier to make the 380VDC or so needed to charge the batteries when you start out wtih higher voltage. IOW, you'll generate more waste heat using a level 1 device than a level 2 one.

[Paperlaw]

Originally Posted by wgreen71

My wife heard that using a level 2 charger all the time is bad for the battery. Any truth to that or have you seen this to be true?

Definitely not true. Car is designed to use level 2 and 16A is very slow for level 2. Only constant use of level 3 DC fast charging will have incremental degradation of battery, but PHEVs don't accept level 3 charging.

[meatball]

Originally Posted by wgreen71

My wife heard that using a level 2 charger all the time is bad for the battery. Any truth to that or have you seen this to be true?

No.


Source: Materials Engineering degree and LiOn battery research

[eelnoraa]

L2 charging at 16A of 45e, is a child's play in the world of EV charging