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  1. E

    Best value batteries?

    I've been using hobbyking lipo batteries for the past 8+ years. I've been satisfied with their performance for the most part. My last purchase was 4x Multistar 6s 10 amp hours. That's 888 watt hours for around $320 CAD shipped, including some extra connectors and wires. That's around 32 cents...
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    Avid BB7.... CHEAP ON EBAY FROM CHINA..

    This won't help you at all but I have similar components. I have a rockshox xc32 and an avid bb7 which i ordered off amazon with 180mm rotor. I'm happy with both. I looked around a few sites for prices on the avids but couldn't find much price difference and I love amazon's super fast shipping...
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    My stoplight sleeper Supercycle

    I recently moved to all 20 inch wheels with my HS3540 and I'm having fun. I've been racing with a guy at work on his Kawasaki Ninja for kicks and I can actually out accelerate him for about 50 to 100 meters before he takes off. I think I'm at the absolute limits of this motor and am probably...
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    Quantify power savings of 3077 vs 4110

    Appreciate the insights. I figured the savings would be negligible but just had to ask before making a decision. I'd much rather retain a wider voltage range than save a couple watts. I suppose I'd be better off focusing my attention on the bike itself to make any real efficiency gains. Things...
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    Quantify power savings of 3077 vs 4110

    Since I'm shopping around for another controller I'm just wondering how much power savings would I get if I went with a 3077 over a 4110 setup. I know it's probably hard to say but would 10% to 20% real world savings be realistic or is it likely to be much less? Assuming I'd be riding the same...
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    Lyen 6 fet sensorless on a 407 clyte at 40 amps?

    That, I did not know. I suppose I'll stick with a sensored controller then. I don't want to be limited to 25 amps. It would have been nice to get rid of the hall wires though.
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    Lyen 6 fet sensorless on a 407 clyte at 40 amps?

    Would a lyen 6 fet sensorless be suitable to run my crystalyte 407 at 44.4v with 40 amp bursts and maybe 20 amps or less sustained in a 24" wheel, without modification? Lyen's product description says it'll run 25 amps at less than 72v but I know these have some room to pull more than that. I...
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    Help repair a blown infineon 36-72v 12 fet grin controller

    I think you're right about me damaging the traces on the board where the regulator connects. Looking at it now it appears one of the legs was not connected properly. So probably that capacitor did receive the full pack voltage and popped. I did this last summer so it's been a while but I'm...
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    Help repair a blown infineon 36-72v 12 fet grin controller

    My controller was consistently overheating in a bag and began cutting out intermittently. So I opened it up and found a loose component TL783C. I also spotted a burnt resistor beside it. So I attempted to solder the transistor back on and replace the resistor with the big 5 watt one I had on...
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    Regenerative - Turn On or Turn Off?

    What Drunkskunk said. Make sure your torque arms are have zero play or you will eventually run into problems. I like my regen for the brake savings and consider the energy return a bonus.
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    How and why did you get into Ebikes?

    I was looking for frugal transportation options more than anything else. While researching different options I came across electric bicycle conversions. After trying a couple out for myself I was sold. I bought a Crystalyte kit and used it primarily for recreation at first, since at the time I...
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    Narrowed down my decision; buying eBike

    You could setup up the RC lipo to be almost plug and play if you want. For example, if you wanted to run 44.4v with 20 amp hours, that's 8 bricks 5 amp hours each. You could connect 4 bricks in parallel to make a 20 amp hour pack and do that twice. Then connect the two 20 amp hour packs in...
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    hub or non-hub motor

    Only if you don't want to ring out your clothes after riding in the rain :lol:
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    Narrowed down my decision; buying eBike

    +1 for building your own. It's very straight forward and easy to do. You'll save a lot of money over buying an a turnkey bike and you'll have a lot more fun doing it too. You can easily get kits for under $500 and you can get a big lipo battery and a charger for $500 to $600 shipped that will...
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    single speed setups on higher power bikes?

    I removed the shifters and cables from my bike. Still have front and rear derailleurs, 7 speed freewheel 11-32T and 3 speed up front so I can change gears manually. I've left it on a gear low enough that I can pedal 15 to 20 kph mostly to limp home. It's nice to get rid of the cables and...
  16. E

    My electric MTB, for long commutes

    Nice. I like your setup. It looks pretty clean considering the big battery and controller you have. What made you go with a front motor? How do you find commuting that long distance in bad weather? How many amps do you run to warrant that 24 fet monster controller? The worst weather for me was...
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    Anyone repair lipos with a torch?

    I could not find a weller for a reasonable price locally, except for the smaller under powered ones. So I grabbed an 80 watt iron from Canadian Tire. It's got a huge tip for stained glass. It did a good job melting the solder off the battery tabs and made the job ten times easier. I was thinking...
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    Anyone repair lipos with a torch?

    spinningmagnets, that's likely what I'll do. I hope it makes it a lot easier to melt the solder on the battery tabs. I've got a couple battery packs that have been sitting around for a while with just one bad cell each. dnmun, I find many soldering jobs require more hands than I've got. I need...
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    Anyone repair lipos with a torch?

    Appreciate the feedback. I think I'll keep the micro torch anyway. There's been a couple times I lost a connection on the road and had to take a long walk back home with the bike because I didn't have a portable soldering tool. I'm a bit surprised this thing doesn't get hot enough to melt the...
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    Anyone repair lipos with a torch?

    hmm I suppose I'll refrain from the torch directly on the lipo. I was hoping this thing would handle the job. Guess I'll have to get a big iron just for battery repairs.
  21. E

    Anyone repair lipos with a torch?

    I just bought a benzomatic micro torch and I was hoping I'd be able to use it to repair some of my old lipo batteries. It comes with a medium sized soldering tip but it doesn't get hot enough to melt the solder on the battery. Just curious if anyone has used a torch for this purpose? I was...
  22. E

    steps to further protect and maintain an ebike kit.

    I spray the inside of my hub motor with some anti rust lubricant and periodically crack the side cover open to let any pooling water out. I cover my throttle with a plastic bag. I've settled on soldering most of my connections rather than using connectors, this alone has increased my reliability...
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    HobbyKing Turnigy 20C lipo after 1 year, 200+ cycles

    I charged up to 4.08v per cell and drained them down to 3.7v and got 450 watt hours out of a potential 666 ( 6 x 5ah 22.2v nominal ). That's about 67% capacity. If I charged them up to 4.2v and took them down to say 3.5v I guesstimate I'd have somewhere above 80% capacity. I never take them...
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    HobbyKing Turnigy 20C lipo after 1 year, 200+ cycles

    oatnet, that's a good point. Cycle count alone doesn't mean that much unless we also know the depth of discharge each cycle and the discharge rate. My cycle analyst says I've used 1350 amp hours, plus there's a fair amount more that's not been logged, and this is all from the same set of...
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    HobbyKing Turnigy 20C lipo after 1 year, 200+ cycles

    Good to hear others are also having these batteries perform well after many cycles. When I first bought these a couple years ago their longevity was a real question but they have proven themselves to be a fairly good value. My battery setup which was 100v 10 amp hours of 20C Turnigy, plus a...
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