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  1. D

    Loss of power, troubleshooting.

    Hello all, I've had a Lightning Rod middrive for about a year now with no issues until recently. Granted, I really haven't ridden it all that much until recently, as I have just started commuting to work daily these past 3 weeks, and intend to do so indefinitely. Just this week, I had an...
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    Clamps on bike tube--protection??

    Hey guys, What do you recommend to protect a bicycle frame when you hard-mount something to it with pipe clamps or some similar hardware? I want to avoid marring my frame. Thanks!
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    Building a water resistant electrical box

    Hello all, I have a question for the more experienced builders out there... I'd like to add an electrical box of sorts to my bike. Inside the box I would like: 1. Main power goes in, hot wired to a DC breaker, and that breaker switch is accessible from the outside (this will be a main power...
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    Tensioning a final drive train

    Hello all, My build will almost certainly have a Rohloff hub at the wheel, and likely a terracycle idler to take up chain slack. My question is--how do I know how much chain tension is enough? My setup will be like this, but with a mid-drive motor, so I will be tensioning between the drive...
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    LightningRods new Big Dummy cargo bike drive

    Hello all, It's been quite some time since I started looking into ebikes--about a year ago now. I was originally going to get a hub motor, then a Bafang, and then I heard about the LightningRods mid-drive, and put down one of the earlier deposits. About the time I would have gotten the drive...
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    Terminology question... Mid drive vs crank drive...

    So, I have been operating under an assumption here for the past year or two as I mostly lurk and am excitedly wait for my first ebike to arrive (hopefully in the next few weeks). What is the actual definition of the term "mid-drive"?? I see people here referring to the Bafang as a...
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    Discharging a Li Ion battery to storage voltage

    Hello all, I remember reading before that using the "discharge" feature of my Hyperion charger is not recommended, at least at a rate higher than an amp or so... What is the best accurate method for discharging a 14s Li Ion battery pack to a certain voltage? Thanks
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    Hyperion 1420 balance wiring order???

    Hello all, I tried to get this question answered on a different thread, but no avail! This is my first balance charger, and I have a question that cannot be answered through the manual (it sucks). I am building my own pack, and am now needing to wire the balance leads. My question is about...
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    Battery terminal question

    Hello all, I just built a microwave transformer spot welder. The specific purpose of the welder is to add terminals to the tiny tabs of the Nissan Leaf battery cells. (The original copper terminals were removed by a prior owner--don't ask me why--I have no idea) So, I plan to spot weld on...
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    Hyperion 1410i charger problem....

    Hello all, I just got a used but "new in box" Hyperion EOS 1410i Net3 charger. I spent the evening getting it set up with a 12v Dell server power supply (Dell NPS-700AB). I shorted jumpers and connected the + and - leads per these instructions...
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    Buying wire, and wire gauge per current

    I need to order some wire to build my battery pack. Given that I am going to push 40-45 amps through the pack, what gauge wire should I use? Braided or solid? Anyone know a good online source to purchase this wire? I would prefer some color options (buy a few spools of different color)...
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    Cost per mile and justification (spreadsheet??)

    Hello, Now that my purchase-o-rama is nearly complete, I get to move on to the fun side of this whole project: building my ebike and riding it! I need to (for me, and my wife) justify the cost of this project. There is no doubt ebikes are supremely cost efficient compared to ICE cars, but...
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    "Portable" charger for Leaf batteries?

    Hello, I am a noob. Complete noob. Keep that in mind when you give me advice :) I am planning to buy some LEAF cells. A lot of capacity. Looks like it will be in either 15s2p (63 top voltage) or 16s2p (67.2 top voltage) configuration. My use for this battery is on a Surly Big Dummy for...
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    Retrofitting existing brake levers as e-brakes--LYEN version

    Hello, This is my first build, so I have some questions, as e-biking is new territory for me. I'm using a CA v3 and a LYEN controller. I also bought, from Lyen, an add-on ebrake to make my existing brake levers e-brakes. I have the picture below. I assume I attach the sensor portion to the...
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    CA3 output voltage??

    It's my understanding that the CA3 has a power output that was intended to send power to the "Cycle Lumenator," which is a light made by Grin. I was going to re-purpose this power output for another light, but I have no idea what kind of output it is. Anyone know what the voltage of this...
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    Realistic expection of lifetime of EM3EV cells (or similar)?

    Hello all, I have nearly every item in my possession for my very first ebike build (some items are on order and have not arrived yet). The one item I have not ordered, probably the most important, is the battery. I do have one question about certain types of cells.... If I order the EM3EV...
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    USB charging from main battery

    Hello all, I attempted a search here, but found nothing for "USB" and way too much for "charge" or "charging"... Does anyone recommend a product out there that is a DC-DC converter with USB output? The goal is to charge a smartphone off of the main bicycle battery when desired. This would...
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    Remote pull cable?

    Hello, I am looking to get a remote pull cable, much like the one we use to remotely open the hood of a car. Something like this: http://www.ebay.com/itm/like/181325044440?lpid=82 Though, I'd like to have a smaller pull handle (something more compact that you would fit between two fingers)...
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    Bottle mount battery, 25 amp?

    Hello all, For my build, I have great interest in this battery pack from em3ev (the 11.0ah option): http://em3ev.com/store/index.php?route=product/product&product_id=161 The only problem is, as most of you know, it is limited by the BMS to 20amp, and I'd like it to drive 25amp.... So, I...
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    Craigslist purchase, new to E bikes, advice requested!

    Hello all, I have been kicking around the idea, for years, of purchasing an ebike, either whole or in a kit. Now, with Spring upon me, the itch has surfaced yet again. I put up a search alert on my local Craigslist, and what seemed like a decent deal popped up. It is a Crystalyte 5404 with...
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    Crystalyte 5404/5403?

    Anyone heard of a Crystalyte 5404/5403? I thought they were two independent models, but someone told me there is a 5404/5403 model that can be switched (on the fly, apparently) from a high-torque to a high speed mode? I did some searching here and some general googling and found nothing...
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    First build, asking for advice, please

    Hello all. I've finally started a new career and moved. Now, for the first time in my life, I can commute rather easily and safely via bicycle. My commute is about 4.5 miles (one way), generally flat, and I have the option of riding a road or a decent paved trail (they run parallel). I say...
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