Lithium-Ion battery?

[TiAgX5]

Originally Posted by puddinboo

and if you read up on these lithium batteries ,more chance of explosion if something goes wrong ,its would be like a time bomb in your car.

Lead acid batteries explode too.

There were 2 Xout members in Europe that posted carnage threads here with pics of bomb batteries and acid in the rear electronic wells.

There are several bomb battery posts on E46fanatics too.

Looked into the MB S63 AMG 4MATIC battery, these are OE lithium ion (no heat blanket), passed the extreme cold weather testing done on all production MB vehicles.

[puddinboo]

Ive just heard alot about the small lithium batteries in cell phones and rcs exploding and the damage they do, therectically lithium are worse than acid batteries ,and yes I know led acid batteries can explode to I just think lithium would be worse for exploding . thats my opinion. I`m just comparing the lithium batteries in general with my drill battery which I can`t leave in the cold or it will temporary die till it warms up.

[Qsilver7]

Originally Posted by TiAgX5

Lead acid batteries explode too.

There were 2 Xout members in Europe that posted carnage threads here with pics of bomb batteries and acid in the rear electronic wells.

There are several bomb battery posts on E46fanatics too.

Yes they do...but the question I ALWAYS want to ask or consider when I hear/read of this on a BMW forum is...was the battery vented properly.

A lead-acid battery produces hydrogen gases as a by-product of the process it creates power/energy etc...and those are the gases that need to be vented to the exterior of the vehicle.

The gas doesn't explode without a spark...and what a lot of unknowledgeable owners don't realize is...a spark can be created when driving around town by a surge or quick overcharge by the alternator/charging system. The spark doesn't have to come from an outside source while working around the battery compartment. Thus the vent tube is designed to carry these gases a way when the battery produces them...which in turn can prevent the battery from exploding if a spark is introduced during an event where the gases could have accumulated in the non vented battery compartment.

The image below is an old image (from around 2003) that was from an e38 owner that hadn't vented his BMW lead-acid battery...which exploded when he had started the vehicle and was leaving a parking lot...it was my first "aha" moment of the real importance of battery venting:

BTW...another misconception that floats around the car forums is that AGM batteries don't require venting...but that's incorrect...they ALSO require proper venting to the exterior of the car.

[TiAgX5]

+1

I thought I would be replacing my battery soon, X sat in the garage for 4 day during/after the last snowfall here. Hooked up charger prior to first start and saw 12.2 volts (never seen below 12.5v).

I've been checking voltage each morning and it's been 12.6v

I guess my battery still has some life left.

[puddinboo]

so after all this you might not be replacing your batt geeze you getting me going on those lithium batts lol ,glad to here your batt is keeping charge ,what make and is it the led acid?

[TiAgX5]

Originally Posted by puddinboo

so after all this you might not be replacing your batt geeze you getting me going on those lithium batts lol ,glad to here your batt is keeping charge ,what make and is it the led acid?

Sorry!

It's a 2 yr old AutoZone lead acid unit. The OE battery lasted 8.5 yrs.

Whatever battery I go with next will be a long-life lithium ion unit. I already have a charger that has an AGM mode (14.5 volt cycle, 2,4,6,8 amp output) so I won't need to upgrade to a new charger.

Will watch the lithium ion technology evolve as the current battery goes.

This is the battery MB is starting to install in AMG models.....

[caisson12]

I see Teslas parked in the railroad parking lots all the time here in Connecticut in all 4 seasons............

[TiAgX5]

I wonder about those who post about issues with power drill lithium ion battery packs in cold weather.

I charged both l-ion power packs for my Milwalkee drill yesterday, stuck them in the freezer (-2 deg F), over 24 hrs and both operated fine.

[puddinboo]

when my lithium batts are in the van overnight at -25 c they won`t run unless i warm them up for 20min

[TiAgX5]

The power indicator on the drill dropped to 60% when batteries where removed from the freezer, after about 5 min of running they showed 100%.