lithium

As the title says, Lithium Ion battery. Has anyone used one on the road and what do you think of them.

I plan to grease the dogbone needle bearings at the weekend. Does onyone know if the 3 in 1 white lithium grease in aerosol form would be suitable. halfords sell it for around £5 a tin. if not, can someone suggest an alternative which is readily available off the shelf. Thanks Porgie