Lithium is nice, but you've got to weigh the advantages over old-school flooded lead-acid batteries, which are far cheaper. Lead acid batteries weigh more and require watering (which I don't find to be a big hassle). You can also leave lithium for longer periods without the need for charging. No problem for lead-acid, with a battery minder or a neighbor to come in and run a charge once a month. And you can get 50 miles on a set of lead-acid batteries and they can last up to 5 years too, if you take care of them. And for the cost difference, you can replace lead acid batteries a couple of times. Lithium would be a good choice if it were equal in price to lead-acid.
|