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    Rad Rover 2nd motor?

    I don't know if it was a radrover, but you might want to have a chat with this guy in the radpower brand forum who did mod his bike to add a front hub motor: https://electricbikereview.com/forums/threads/battery-cut-out-at-high-loads.38269
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    Anybody Hit A Deer While on Their eBike ...

    Ok, not a bike. But you're minding your own business, gliding down from the sky, and...
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    What are your cold weather ebike limits?

    Got one and it is awesome sauce.
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    Is Tesla serious?

    Seems apropos:
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    Is Tesla serious?

    > The Model B’s sleek frame comes with forward, side-facing, and rear proximity and LiDAR sensors that scan the surroundings to create a protective bubble around the rider, alerting them of any obstacle. Um, on my daily commute that will trigger about 20 times each way as box trucks and muni...
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    New Radrunner owneron,

    The built in LEDs on the battery only give you a useful reading when the battery key is in the ON position. For any other key position they give you a reading of a moment of residual voltage and then nothing after that. BTW, I frequently forget to turn the battery key OFF before charging. No...
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    New Radrunner owneron,

    Don, one other thing to look at. Your battery has a crude built in meter. Near the front of the nose there is a push button that lights up to 4 built in LEDs. With the battery key in the ON position, push that button and see how many LEDs light up. Do this before charging, then after charging...
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    New Radrunner owneron,

    You would be wrong, because that scenario would blow the 40A fuse. And if you will read what I actually wrote, you'll notice that I asked the OP to tell us the battery charging time, which would differentiate an apparent voltage drop situation from an actually discharged battery. Another...
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    New Radrunner owneron,

    How long does it take for the charger to go from red/red to red/green? "Overnight" could mean 15 minutes, or the full 7-8 hours for a fully discharged battery. Guessing here, but either you've got a loose cable connection that is creating the symptoms of a nearly discharged battery, or you've...
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    A new cargo electric bicycle ambulance

    Great idea. The quicker you apply the defibrillator and/or start intubation the better the patient's chances. The ambulance ride (usually) happens after patient stabilization. There are no unscuffed motor vehicles in Paris.
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    35Amp Controller on my 2020 RAD Mini install with pics

    Ok, that's what I expected. If the 52v and 48v batteries were hooked up in parallel I'd expect the 52v to be constantly wasting juice trying to "charge" the 48v.
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    35Amp Controller on my 2020 RAD Mini install with pics

    How did you handle the voltage mismatch between the batteries? Is only one connected at a time?
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    What are your cold weather ebike limits?

    Yep, I've noticed the decline starting in below 50 degree riding. Limit for me is 40 degrees, which almost never happens here. Gloves and (now) a face covering bandana helps. If I had to do this often I'd get some kind of wool beanie to go under the helmet. Wonder what wattage handlebar grip...
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    Radrover Front Skewer Size

    Pretty sure that means M9 diameter. Metric 9mm. I know the rear is M12. Be sure to check the thread pitch before ordering anything. The rear axle is M12 "very fine" 1.25 pitch, and standard M12 is 1.75 pitch. To measure thread pitch hold a metric ruler up next to it, and see how many threads you...
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    motor quits upon initial throttle twist

    The problem is in the left brake lever on the handlebar. Take it apart and figure out why it is false activating. Brake pads contacting the disc are very unlikely to have anything to do with the problem.
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    E-Bikes suddenly everywhere ?

    I think that more means an increase in demand for ebike advertising slots. But I am seeing a lot more ebikes around here (san francisco), mostly 2+inch tire ones being used for urban commuting. Though there's selection bias there since that's what I do every day. Had a really nice chat for a few...
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    Detectives and noxious locks take on bike thieves

    The skunklock website is dubious as f*ck. Incoherent caption on the "How does it work" image, the FAQ doesn't answer some of its own posed questions.
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    Help/RadPower Wagon4/Bolton Upgrade

    bolton sells a parallel battery connector, don't know if it is switchable.
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    Help/RadPower Wagon4/Bolton Upgrade

    Not simultaneously, but I don't see why you couldn't swap them, assuming connector compatibility. Only problem is where do you keep the "off" battery when you're at the beach so it doesn't get stolen. Maybe mount them both and install an A/B switch on the battery cable. I ask, because if it is...
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    Help/RadPower Wagon4/Bolton Upgrade

    What voltage is it displaying just before shutoff? I will bet that you are drawing max power (1400-1500w) all the time. At that power draw you will get about 25minutes of draw before the battery drops to shutoff voltage. But... it's wasteful to send that much juice through the motor. Try...
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