yinleader battery charger 40a, 12v/24v lead acid smart battery charger, 12v lifepo4 car battery trickle charger, automatic battery maintainer for car motorcycle lawn mower marine boat lead acid batteries black 40a is up for auction in Automotive. The current bid is $22.50, 77% below the $98.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.