I picked up my first camera, Moultrie old unit , for $20. Used the 6 V lantern batt. Ate them like a kid eats candy. Got a 6 V motorcycle battery and use jumper wires from a coffee can to power it. Goes about3 weeks + now and is rechargeable. My main cameras now are WLI and use AA. Been out 3 mo. now and still show full charge on alkaline batt.