Endless Sphere Bionx Battery Hack
garygadget15 in the UK has an interesting showing an electric bicycle. On his page titled, saving money the “green way” he has replaced his commuter car with one of these electric bikes. He then videos the commute with both to. The DIY electric bicycle kit he uses is made by comes in multiple wattage’s ranging from 180 watts to 1500 watts where they do a great job of showing the conversion steps. They’ve got enough detail that you could fab your own from salvaged parts if you felt like it.Posted in, Tagged, Post navigation.
Lifepo4 batteries are fantastic for some applications. They’re the ‘safe’ and ‘reliable’ lithium chemistry, at the cost of lesser energy density w.r.t. Mass and volume. There’s at least one manufacturer who’s working on improving that.For deep cycling they’re fantastic. I’ve heard anywhere from 1000-2000 full cycles before you reach 50-75% original capacity, depending on what marketing you read;)This design makes me want to make a bicycle “series hybrid”, where you pedal into a generator, which outputs electricity to a battery or a motor. Then you just pedal at whatever speed you want if there’s still stored energy.
Everyone asks about pedaling to recharge the batteries on hybrid bikes. Yes, it can be done on models with regenerative braking (though, not the cyclone), but Yuck! It is no fun to ride with extra drag. If you feel the need to generate electricity with your legs, set up a pedal powered generator in your living room, but don’t expect it to alter your carbon footprint one iota.
The environmental cost of any extra food you eat will more than offset the benefits.Regarding the Cyclone conversion: The motor is mounted too low, making it very vulnerable. The lack of a bomb proof chain guard is a serious hazard. I’m not impressed.The easiest way to convert a bike yourself is with a hub motor, which replaces a regular wheel. Bionx makes a complete kit that is highly regarded. Crystalyte motors have a similar reputation, but require you to supply your own battery system. There are a lot of bargain motors from China, but it seems you get what you pay for.As for batteries, there are several adequate options, but no clear winner.
Endless Sphere Bionx Battery Hack Tool
I expect to see some substantial improvements in the next 5 years. Nubie: All electric motors have a top speed for a given supply voltage. For brushless hub motors that speed is theoretically their Kv rating multiplied by battery voltage. Above this speed, the motor’s back EMF exceeds the driving voltage, preventing the motor from drawing power.Increasing the top speed reduces low end torque. Chain drives with multiple gears are generally thought to provide better torque with good high speed performance, at the expense of complexity and more stages for mechanical losses to add up.Cheap motors tend to be bigger, heavier, hotter, less efficient, less reliable, and lower power. You can always find a motor that costs less. The notable thing about these motors are the availability of high power (1500 watts = 2 horsepower!) in complete packages at low prices.
Lead acid batteries work OK (cyclone even sells them) though they are heavy, lose capacity quicker, and contain lead which.must. be recycled.Lastly, I followed the links before “knocking” the product. I stand by what I wrote.
If you want to build an ebike with the motor inches off the ground I wont stop you, but please try to add a better chainguard. Just a little info for those interested, the motor and the pedals have freewheels fitted so do not turn with the motor and you can pedal without turning the motor. The video of the wheel spinning was with no load so is faster than when under load. Also the 15.5mph UK limit is derived from the European law (or the other way around!) but generally either a 250watt or 200watt (350 watt for a tricycle) average rated motor is ok, top assisted speed is 20kph (15.5mph) the bike motor and batteries must not weigh more than 40kg and only 14 year old and above are allowed to ride them, but UK law allows for an average user speed, so if you weigh 9 stone and are 14 years old you will travel a bit faster than someone who weighs 25 stone, providing it is designed for an average user the law allows for a degree of variance. And has speed restrictions do not apply to cyclists in this country you can pedal has fast as you are able.The cyclone was my choice (over the Wisper) as it drives through the gears, in a lower gear it allows me more torque and climbs quite steep hills at a very reasonable 15mph but in top gear it will travel at 22mph depending on wind etc. This allows me to add to the motor assistance with pedalling so I can keep up with normal traffic flow (very much like the newer Panasonic bikes out now but a lot cheaper). The gearing dictates the speed more or less.
With hub motors it’s the controller but again the rider’s weight and conditions vary the speed somewhat, though I would add that Hubs seemed to assist you to 15mph and added drag when you want to pedal faster, the cyclone just freewheels when I pedal faster than its maximum speed. As for the motor position this is a compromise, low down and central to the bike, makes for a better balanced bike but also is in a position to be splashed, though I have not managed to knock it yet, as it seems to be high enough to be out of harm’s way. A hub motor is a heavy piece of kit and fitted to a front wheel can feed back through the steering (not very nice), in the rear wheel it can make the bike back heavy and not very nice in the wet. Ok not that little a reply – but anyone interested in an alternative commute to work I would highly recommend you get an electric bike, but with a very bright yellow coat and a load of flashing lights and a book on cyclecraft, and just keep on believing those motorists really just did not see you!! Improved technology is creating longer-lasting batteries with extended life and range – all while prices continue to decrease.
Electric bikes are becoming a more viable option than ever before and there’s been an explosion of DIY kits and new electric bike models.Other posters have mentioned the laws that limit the speed of electric bikes to 20 mph – but this also allows you to avoid paying for insurance, registration and all the other fees associated with motor vehicles. It’s not very hard to upgrade a kit to do over 20 mph – and law enforcement is probably not going to know the difference if you’re going 20 or 30.Either way, electric bikes are a great way of getting around – and saving money!
Here’s a great place to find more information about. Nice contributions from everyone, this forum is a blast!Some people miss the whoe point of an electric bike though. These thinge are primarily fo ‘assist’ and not sport racing, so I wonder why the avarice towards more amd more power.The essence I think is to weave in and out of trafic and get to your destination without breaking much sweat.Any motor that runs faster than you can peddal is simply running too fast for your own safety let alone the law.Im working on my own bike but I’m missing the drive sprocket on the motor.
Any idea where I can find a 9T 10mm D-bore sprocket for bicycle chain?I’d be glad to know.