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Ultrafire torch - new problem

mathematicsmathematics Posts: 453
edited September 2014 in MTB workshop & tech
My Ultrafire torch flashes and changes mode when riding on any kind of rough stuff - I am lead to believe this is due to the battery being loose and rattling around. Does anyone know if this is the case and if there is a fix for this?

This only happens with one of the torches - the other is fine. The batteries, incidentally, are the 18650 type.



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