I don't know how many cars have that problem but when looking into charging issues with my 4Runner people reported that the vehicle was pulling over 6 amps from the trailer lithium battery at times, and any trip would drain the lithium battery somewhat.

So the alternator is not just smart, it's smart and lazy. A car with a smart alternator will see the higher voltage of the lithium battery, and may just let the lithium battery power the whole car. On Sat, at 11:50 AM, Steve T wrote: I've also seen some interesting comments that lithium exacerbates the smart alternator problem, because a lithium battery has higher voltage than lead acid, and that allows power to more readily come from the lithium battery. I've also seen some interesting comments that lithium exacerbates the smart alternator problem, because a lithium battery has higher voltage than lead acid, and that allows power to more readily come from the lithium battery.

I'm not seeing any just plain battery chargers that are any cheaper than a converter that put out the same amount of amps. If you get a 100 AH battery, get a converter that has about half that as its charging amps (50 amps), so you can charge the battery in minimal time if running a generator. I'd recommend getting a new converter for a lithium battery, and get a powerful one.

But you can get a Chins battery with a heater and low temp protection for $670, which is a much safer option. Failure to do so will destroy the battery.

According to the youtube review, if you get the $439 Chins battery, you have to unplug shore power or disconnect your solar each night if temps go below freezing, because that battery does not have low temp protection.

How to convert highlander to lithium