Recent content by chrissybabe

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    Rewrapping a battery

    After much experimentation I found the best way (for me anyway) to re-wrap a battery is to cut out several pieces of heat-shrink using a guillotine and they all end up being the same length with the ends square. I use a proper heat gun and try and stick the battery vertically on a small flat...
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    Looking for a smart lithium ion discharger. Have you come across one somewhere ?

    Before I tell you what I am looking for I should say that I don't really care whether the discharger also charges although that would be nice. I am reasonably happy with my standard chargers. I also tend to favour battery packs that allow assembly from loose cells rather than worrying about...
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    CAUTION !! Misleading budget battery and lumen claims

    The second to last set of batteries (18650) I bought were Ultrafire rated at 3000maH. Testing showed them good for 800maH. The vendor said I had no idea what I was talking about and he had no complaints or returns. They were red and had 3 black bars on them. The last set I purchased were also...
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    Source of waterproof clicky switches for caving lights

    Thanks for the input re my choices. Money wasn't a major issue and I must admit I have thought about the heat and was thinking of maybe designing something to help. My main reason for using the existing Petzl bodies was because the helmets already have the brackets, wiring, battery pack on the...
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    Source of waterproof clicky switches for caving lights

    I have 5 helmets and lights for new cavers. These have previously used a variety of Petzl lights and I want to move on to LED. Fortunately I think I have found a source of drop in lights that will fit in either of my old housings (2 x Petzl Zoom plus 3 other Petzls). I have to remove all the...
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    Power switches for bike lights

    I have a bike light system (Magicshine from DX) which I am happy with except for the necessity of the main power on/off being to unplug one of the cables. I have had frequent failure of the Y cable used to connect up the front and rear lights to the battery and fixed this (after buying too many...
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