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    Low voltage application for alternative home power

    Hi Folks, I'm running solar in my home, and am tied to the grid to back-feed energy I don't use. This works great for balancing costs, but still a slave to the grid. If I lose power, I'm still out. What standards are available for high-efficiency low-voltage applications for wiring a home...
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    Brushed permanent magnet starter motor to play with

    Hi Folks, I've had my starter motor replaced, and asked to keep the original part. I found that the only thing wrong with the motor was the brushes wore out due to oil getting inside. I was going to drop by the parts store and get a new set of brushes for it. I don't have a lot of options...
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    Removable wheel hub motor

    Hi folks, Not sure how to classify this thread as it's more of a versatility question. I have a front wheel drive wheel hub motor and wanted to make it easier to detach for days I want to go powerless. The motor adds a slight resistance and I don't want to bike to far with it attached and no...
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    Scalable BMS

    Hi folks, I've built a 48v 12s 6p battery out of 18650s and am extremely happy with the performance. Now I'm looking for a simple way to charge and scale up as I am intending on going 8p soon. So I'm thinking a 12s 2p PCB BMS would be ideal as I link the batteries in 2p banks. I'm having a...
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    Amp meter from amazon

    Hi folks, This may or may not be obvious, but I am looking for a wire diagram for this guy: http://www.amazon.com/gp/product/B00CQHNKU2/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1 I can't afford to mess this up working with a 10A 48V system. Thanks in advance.
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    Chainless electric bike (alternator)

    This bike really drove up my curiosity... http://www.gizmodo.com.au/2012/10/this-chainless-electric-bike-makes-you-the-backup-generator/ I've had a peaked interest in an electric recumbent trike and was thinking of a diy due to the costs. One of the larger problems with recumbent bikes are...
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    Found LiPo battery

    I disassembled it and pulled out the individual cells. Clearly, one is in good shape, and it does hold a charge. The battery array was rated at 19v output. I'm assuming this is in series. There were four cells in total, so should I suspect that it's a 5 or 6 volt battery? Do these cells look...
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    Fire flasher 48v for lighting

    Company clearing out lot's of electronics, and found a couple of fire flashers not unlike this one... http://www.freeinteractivelearning.com/lessons/Intro_to_nec/fire_flasher_1_1.jpg Turns out they are 48v, which is perfect for my ebike, and it works! I may need to get a red or amber light...
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    Looking at new bulk charging option for 18650

    Hey Folks, Found this interesting thing on ebay. Apparently you can link multiple casings together (series) and has built-in protection circuit...
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    Surging old cells back to life

    I'm sure this will spark a lot of grief, flames, what have you... lol, which is fine by me, have fun :twisted: ... I've found various posts elsewhere, but not here regarding surging cells to bring them back to life, somewhat. They would not be expected to perform as new, but could be placed...
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    Lead Balloon

    In Jr. High, we had these one-liners like, "That's about as funny as a screen door on a submarine" or "that's about as funny as a lead balloon". I, against my better judgement, chose to charge my 48v UPS battery using my stock ebike kit charger rather than placing it back into the UPS for...
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    Building my first 48v 18650 battery

    Concept: Build a battery that is easy to maintain and replace over time and involves minimal soldering. Go as green and cost-effective as possible. Source: Recycled laptop batteries. Technical Details: 12 x 18650 batteries in series per bank at 4.2v per cell will come to 50.4v total. 4 banks...
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    Hidden costs of ebike

    So new to ebike, and I've discovered some important accessories needed that might not be entirely evident for first timers. Feel free to add: 1. Better kickstand. $20 - Especially if you are starting out with lead acid batteries, you don't want your bike falling over from the extra weight. 2...
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    Just put together my first ebike kit, and first post

    Hi folks, Just put together my first ebike, and it went very smoothly... http://www.amazon.com/gp/product/B007FHGQ9K/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1 Great price on a 48v kit. No battery, but I used my 48v UPS battery (lead acid) as a cheap getting started battery. It's about 30...
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