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    Your Creation's Before & After Pics

    Here is my home made battery holder. 4x-20amp LifePO4 packs from batteryspace.com. So far, very reliable. I get a 25 mile range going full throttle. Packs are wired in series to give me 54 volts. No special tools needed to build this holder. Just a dremel with a cutting wheel and tube...
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    Building a 72V ebike

    You are so right about that. I ride my 30mph e-bike in the bike lanes with no problems everyday. However, I also recently started riding my legal 20mph e-moped in the bike lanes and got yelled at. Even though I am legally afforded the bike lane in California according to the California Vehicle...
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    Building a 72V ebike

    Here's my advice on the batteries. You don't need 72v to go 50kph (30mph) top speed. You only need about 60v. I have 3 e-bikes and all go about the same speed depending how much voltage I wire up. On my 1000w hub motor, it is capable of 28-32 mph on 48v-57v. I ride 15 miles round trip to and...
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    1500w 48v 20ah standing kick scooter unboxing with pics

    If your new scooter isn't running much faster, it could be a couple of things. Your new batteries aren't giving your motor enough juice to get to top speed. The new brushless motor needs more amps on the same 48 volts. That means your batteries need to provide more juice. It doesn't appear...
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    HobbyKing seems very Out of Stock...

    Hobbyking sucks and I'll tell you why. Everything is rosy if you get your order and they ship it right. That will be most of the time. However, if you happen to be the 10-15% of screwed up, lost, or damaged items, be prepared for a headache!!! I used to order from them all the time...
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    Headway or A123?

    I wanted to find some info on real world testing of the Nissan Leaf battery and found this article: http://insideevs.com/long-term-review-nissan-leaf/ Scroll to the bottom regarding battery life. Keep in mind, this test is on a car about 2 years old, so older battery production of the battery...
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    Headway or A123?

    Specifications: Model No: 51095 Battery: LiFePO4 Capacity: 13600mah (enough to Jump Start a Car more than 30 times) Output: 19V/ 16V/ 12V 3.5A USB Output: 5V 2A Charge Mode: CC/CA 15V 1A Starting Current: >200A Peak Current: 400A (<3S) Operating Temperature: -20°C~85°C Power Bank Dimension: 6.5...
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    Headway or A123?

    A123 does look good on paper, but who really has data to show 2000+ cycles? I commute daily and to get 2000 cycles, you would have to cycle the batteries every work day for 7-8 years. I commute to work daily and have only been doing it for 3 years plus. My lipos have gone through about...
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    HELP! I'm about to pay $1600 for a 1500w stand up scooter?!

    When the company advertises potential 40 mile range, that's at about half throttle. On my ebike, I was able to go 50 miles at about half throttle. That was about double the range my battery pack was capable of. On a 20 amp pack at 48v, you will be able to travel about 20 miles at full...
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    HELP! I'm about to pay $1600 for a 1500w stand up scooter?!

    Going 30mph for 20 miles? That's tough. I've been riding e-bikes for over 3 years and to do that, you have to carry a lot of battery. 1 mile at 48v is about 1 amp drain on your batteries. You will need a solid 20 amp battery pack that is 48v. That's roughly 15-20lbs of lipos. Also, you can...
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    Electric Scooter Purchase Inquiry

    That's a bummer. I'm very skeptical about the specs the website advertises. 1000 watts with 36v battery going up to 30mph? That just isn't possible with a brushed motor. At best, I get 28mph on 1000watts at 48v on my e-bike with a brushless. I don't see how SLA car batteries will get you to...
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    Electric Scooter Purchase Inquiry

    I get it and I have seen some issues with brushless motors in the RC community. However, many of these issues I've seen are due to the speed controllers and the setup. The ESCs that are used in the RC community are more complex and can be programmed. Not the same for the e-scooter and e-bike...
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    Electric Scooter Purchase Inquiry

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    Electric Scooter Purchase Inquiry

    That's the first I've ever heard that "brushless" motors struggle from a stop. I'm not sure where you're getting your info from, but brushless motors are 85% efficient vs 60% to brushed motors. There is no struggle when you're feeding 50v into a brushless motor. The same size brushless motor...
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    Electric Scooter Purchase Inquiry

    I've been looking at those 1200w electric "turbo" marketed scooters and considering buying one. I've noticed there are the brushed and brushless motor versions. One seller, http://www.eastcoastwholesales.com, has a page trying to convince buyers "their" brushed motor scooter version out...
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    Solid performing Lipos

    By all means, if you like Turnigys, stick with them. Just to reiterate, I didn't start using Haiyinstore lipos in my e-bikes right off the bat. They were tested and proven in the RC world to be better than Turnigy Nano-techs, Turnigy's top brand. My RC buddies and I have tested multiple RC...
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    Solid performing Lipos

    Sorry if I wasn't clear. A couple of times, I've over drained my packs down past 3.7v and when topping them back off, the charger puts back 3500mah-4500mah into the packs. Being each lipo is created differently, some were charged up to 3500mah and others were charged up to 4500mah. After 400+...
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    "LiPO", another "be careful" warning...

    I've been working with lipos for 8+ years now in the RC hobby and last year, got into the e-bike craze. Before getting into e-bikes, I've never heard of "bulk" charging. One guy on this forum recently lost his house from bulk charging 35S packs. If that's what he did, that's over 140 volts...
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    Lipo noob shopping list help!

    Scoot, Here are my lipos charging at work right now.
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    Solid performing Lipos

    Update on my Haiyinstore.com lipos. Purchaed around March 2012 and still have about 3500-4500mah total capacity out of 5000mah total capacity, depending on the pack. Over 400 cycles on them to date. Here is a pick of them charging right now at work.
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    Lipo noob shopping list help!

    Scoot440, Here is what I have been using on my ebike for over a year and it has worked great for me. I commute 30 miles a day to and from work round trip. I charge at work and at home, carrying 12s lipos total 20 amp hours. The commute uses about 1 amp hour per mile, giving me lots of...
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    Contoller max amps vs actual draw vs phase amps...

    Here's a way of looking at amps for your ebike. My 48v 1000w hub motor draws about 26 max amps with my 190 lb frame and bike loaded with batteries, right from my watt meter. The 26 amps will go up or down based on a number of things. If I have a brand new fresh set of lipos, the amp draw...
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    Yescomusa 48v 1000w front motor max voltage?

    Thanks for the info. Yesterday, after my 45 minute commute home, I felt the motor hub and it was hot to the touch. The controller was very warm. It was most likely the hot LA weather. This morning, after the same commute to work, the hub motor was warm and the controller was slightly warm...
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    Yescomusa 48v 1000w front motor max voltage?

    Sorry if I was vague. I don't plan on going more than 14s or 15s. I was just wondering if I need to get an upgraded controller for the yescomusa 48v kit to run 14s or 15s over a 45 min commute. If the stock controller works, I will stay with that as long at it doesn't overheat. I already...
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    Yescomusa 48v 1000w front motor max voltage?

    I've been reading some people with the Yescomusa 48v kits are powering the motors with more than 12s. One user has successfully run 14s on the stock system. I haven't tried it. My commute is 15 miles each way to and from work and I'd like to get a bit more speed without buying another...
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