I used to take in as many lead batteries as I could get my hands on in one shot. It has been a few months, but the yard I visit now limits the number of batteries to two in one day. I don't really understand why they placed the limit (although, I imagine it was a limit placed upon them by government). It doesn't seem to be a weight issue or size issue as the lead batteries I harvest the most are batteries from uninterruptible power supplies for computers I get from yard sales. I pay $1 for them and get the ICW cord, a really hefty copper coil, a lead battery, and a circuit board. I figure about $3-$4 an UPS.
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