Clman Powermate, 4 in 1 all weather power source, jump start system with : 260psi air compressor,400 watt ac power inverter ,12 volt dc power souce, it has a jell cell battery that is rechargeable , with jumper cables attached ,it really has come in handy .My brother gave it to me last Christmas ,I'm not sure where he got it , but I think you would get good use out of it camping and all ,it has saved me many times. ===== Paul Smith www.23window.com/thezone H.B.B T.C.B.