I
Ian Stirling
- Jan 1, 1970
- 0
Ken Smith said:Here's my environment:
Imagine all the garden spots of the world such as the senic Turan Basin,
the wild and breath taking Artic tundra, and the wonderous Antartic. Now
imagine that "normal use" is to tie the product to a ATV with a long rope
and go motoring over the land all day long. In the evenings, the
batteries may get recharged, or maybe not or maybe only partly depending
on the realities of the situation. The next day you do it again.
I think for this environment, the SLAs were the best of the awful options.
NiCad and NiMH batteries hate partial drain and recharging. All types of
Lithiums do too and protest more explosively. Lithiums also have the
proble of cost. You know you are going to ruin what ever battery you
select in very short order so you want it cheap and to have a highish
energy density.
Actually, lithium works quite well for this.
The lower the average charge state is, the greater the cells life.
As long as you have proper control, and don't overdischarge (under 3V)
or overcharge (more than 4.2/43V), and match the cells right, lithium
could be a fairly good match.
Cost is of course a problem.