Lithium-ion batteries

[Motobrewmaster]

I only have some experience using them in motorcycles for the last decade. They have definitely improved them over the years and having a good charger is essential. That said I have been using them in my street bikes and race bikes with good results. My newest batteries have lasted 5 & 6 years and are still running strong. They are able to crank over a high compression (13:1) race twin and a 10:1 street 900 street twin with no problem from remarkably small and light weight batteries.

My only complaint is they are sensitive to cold. They definitely lose alot of cranking power when they get cold. The trick I have found is to turn on a head light (street bike) and draw current to warm them up a bit. This usually warms the bat up and then it will turn over.

Personally I would consider one for my car. Maybe once my current battery dies I will replace it with one.