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What exactly do you do with them? I am off the grid, and looking for an alternative to golf cart style wet cell tech, or agm...although they last well, the maintenence is a pain...
From the Ground Up Build a ...View Instructable »
Camp/ CabinView Instructable »
A Homemade Wood Gasifier To Keep You With Power After The Grid Fails
A spiffy planting aid
Make PVC Look Like Wood