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This will be the third season we have been using Li-Po Batteries and Bluetooth for the ML5000. Now be careful Li-Pos's need very careful management. They can and have caused serious fires. With Li-Po,s, as used in drones etc, they can be managed safely - the main trick is to only balance charge...

Can anyone have a stab at what mineral is in this photo please? I am in the gold fields in far North Queensland and found these nuggets. On breaking one open it looks very silvery. They are non magnetic and give a nice tune. I guess they are lighter than gold. Thanks

Sometime ago I designed, Provisionally Patented and built a prototype device to transfer the weight of a metal detector to my lumbar area. I used this device, which I called "Dinkum Swinger" for a few weeks in the Golden Triangle where I found it beneficial for my old limbs. The only problem was...