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    Controler

    The advice already given is good, but first you need to fully and accurately identify (on older models extremely important!) EXACTLY what type of motor you have and possibly what type of PAS sensor, or equivalent (if fitted), before you buy a different type of controller. Having either a...
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    Stork bikes

    May I suggest measuring the actual battery voltage with a reasonable multi meter or similar, as judging charge level from LEDs on the battery or charger, can often be very misleading and inaccurate. To me, its sounds as though your battery is possibly defective....Post the measure voltage and...
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    Demo/mini review of 20W "1800LM" 12V-80V 0.5A bike light

    Good one. I try always to remember never to believe what salespeople say and post! Mostly fiction! I am rarely disappointed, sadly! regards Andy
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    Demo/mini review of 20W "1800LM" 12V-80V 0.5A bike light

    Good video, with my style of humour and some great facts. Thanks for sharing. regards Andy
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    Demo/mini review of 20W "1800LM" 12V-80V 0.5A bike light

    I like a good post about better lighting especially for us cyclists, thanks. Your post prompted me to look around on ebay, and its remarkable just how many sellers are claiming even 100,000 Lumens for their flashlight (Torches UK). See here for example. (Note, I have not yet tested any of...
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    New Cassette needed?

    Great, accurate and very informative post. Many here with mid motor e-bikes would be most happy to achieve 3000 miles before having to changing the cassette and chain. Others seem to forget that ALL torque from both the human and the motor, passes over the chain on mid motor e-bikes. Whereas a...
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    e bike fires

    There is quite a good case for NOT having batteries inside your house at all....... Somewhere dry, where if the battery does catch fire, it can cause far less damage.....Remember, the fumes are bad for the health of humans and animals.... Thankfully, with reasonable care, this should never...
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    e bike fires

    Some expensive ones do just that, I am told, but some switch back on again too... Be careful what you buy!! Andy I like it that you are thinking "out of the box", but its not going to help to stop these batteries from burning, as they already have their "OXYGEN" for burning, in the chemical...
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    Sand in the frame?

    It may be a bike made on a bending machine, and some of them use sand to stop damaging the metal pipe work, while bending. But usually, all the sand would be removed or shaken out. Maybe it also got welded after bending, and the heat caused the sand to stick together. Possibly an indication of...
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    e bike fires

    The huge amount of energy in a Bike battery, its more like "slow" dynamite, than burning. IMHO only complete immersion in cold water, for some hours, is needed to stop the reaction completely. Like fill your bath and only charge in the bathroom and have a method of "throwing" the burning...
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    e bike fires

    How true. If I think that I may not be around when charging finishes, I use my modified (cheapo) 24 hour timer, where I have rewired it (very simple mod) to switch itself off, when the time is achieved, and cannot switch itself back on. Digital timers are more difficult to achieve that and are...
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    e bike fires

    Good links, many thanks. Basically, people with no knowledge at all, simply pushing the envelope....with the expected results.... I am reminded of the old saying:- "Fools go where Angels fear to tread!" Thanks again for your post. My own favourite is this one, where it seems two incompatible...
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    e bike fires

    Good pictures. Immersing a Lithium battery in water, after a fire has started, is probably the ONLY way to (eventually!) putting it out..... regards Andy
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    Real data from a simple datalogger

    Interesting for many of us here I feel. Does your motor have an internal thermometer/temperature sensor, to warn of any overheating? Which of course will be far more prevalent on a hot summers day than December/January! I will follow your post with great interest. Thanks Andy
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    is this normal?

    Get used to it happening, because on any mid motor e-bike, as the load on certain parts is very high, due to all the human effort AND the motor effort, pass through the chain and associated parts....so they wear much faster.....failures happen. On a front or rear e-bike motor, the chain has no...
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    Sleeping battery

    I have no idea what nominal voltage your battery is, but if it is 36 v, then the Stark company sell a 36 volt battery charger, that is also called "A Zero Volt Charger", to recover sleeping batteries. I had to use it myself after my Stark bike was so long in delivery, the battery would not...
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    Radio Mics For 4 Riders.

    That is also very true for drivers of cars IMHO! But they have more protection..... The proper answer to that problem is to say/shout "SHUT UP AND DRIVE!" regards Andy
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    Radio Mics For 4 Riders.

    Some mobile phones can talk to other local mobile phones, without using the normal methods, just directly I have read, but how many, I haven't a clue. Or all buy cheap digital WalkiTalkies, ones with a phone socket possibly..... Look on this page for starters:-...
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    Bicycles to pay road tax

    Apparently heavy lorries are the main cause of damage, so I think its a weight "thing", coupled with speed... Andy