How well it lasts is probably going to depend on how well the lead-acid battery is taken care of. Run that battery completely down a few times, and you may as well throw it away.
I build all my own equipment, so I won't be buying one, but it is good to know about it.
/johnny
50 posted on 10/12/2012 6:55:38 PM PDT by JRandomFreeper
(Gone Galt)