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    Source for US 18650 cells

    Thank you! I'm trying to find Samsung 30Q's at a reasonable price. They're pretty much sold out everywhere.
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    Source for US 18650 cells

    Please delete and recommend a better location if this isn't the right place to post this. I'm looking for a source for good quality cells to build a pack. I'm looking for authentic Samsung, or sony or the like. I've seen them on Aliexpress but I don't know if they're legit. Shipped to USA...
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    QSMOTOR,0.5-12kW Electric Hub Motor & Mid Drive Motor Manufacture China

    I just got a motor and controller from them about 3 weeks ago, ordered on aliexpress, shipped to Montana.
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    which ebike for my new rental business

    Hi! After spending years on this site and building converted ebikes for fun, I have decided to start an ebike rental business in my area. I live in a very toursity area. My sisters came into town and I went to rent an ebike for the day, and they said they were sold out for the rest of the...
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    Analog gauges on an ebike

    Dude, you are so helpful. Thank you! I did a search on here but didn't get the links you posted. Cheers!
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    Analog gauges on an ebike

    I love the idea of having some vintage looking analog dials on an ebike, giving information like Speed, Temp, Voltage, (battery capacity?)etc... I don't really know how to do that, however I did find this cool youtube video of someone taking an analog voltmeter and converting it to a...
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    Frame building beginner

    Thanks everyone for the great advice! I'll start a thread when I get going on the project. I think I'm going to start with just regular cold rolled 3/4 or 1 inch .06 wall tubing and do some practice bends and welds. As far as strength goes, it's probably strong enough, right? I mean if...
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    Source for 17" moped rims and tires

    Thanks for the advice. I'm the guy in the other thread asking about a beginner custom frame build. Your comments were helpful with understanding what I need to do to build a frame from scratch. I have already ordered some 20" bike tires, but I feel like with a qs205 I need something a...
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    Source for 17" moped rims and tires

    Hi I'm looking for a good place to source moped rims/tires shipped to the USA? I'm looking to build a fat tire type bike, so as wide as possible, size 16-17. If anyone has any recommendations, I would appreciate it! 8) Thanks
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    Frame building beginner

    Hi! I'm interested in building a fame for my ebike build vs converting one. But I'm not sure where to start. I've watched several youtube videos, and plan to make a simple wood/metal jig. I plan on tig welding it, and want to use cromoly tubing. I'd like to make it similar to this style of...
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    Noob lipo bms question

    Can you explain "lowest level components"? I think you're saying occasionally check each individual pack with a volt meter. Any suggestions for a decent 20s bms?
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    Noob lipo bms question

    Hi all, I'm trying to resurrect an ebike project I had running years ago, and have some questions about getting a BMS going. Please forgive me for asking a dumb question. TL;DR: I'm building a 20s2p pack out of turnigy 5s. Do I use 8 5s BMS boards, or two 20s BMS boards? My aim is to...
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    Simplifying my balance charging process

    That's what I thought. Thanks.
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    Simplifying my balance charging process

    So if the switch is between the two packs, vs at a main connector on either side of the pack does it experience a different amount of current? Does a switch at A, experience less current than B? Thanks.
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    Simplifying my balance charging process

    Right, so there are a few ways that I have considered to make this process more failsafe. I thought about making a plastic plate that had 4 bullet plugs on each corner sticking out perpendicular to the plane of the plate that would act like a 2 pole switch. When you take off the plate one of...
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    Simplifying my balance charging process

    I use 8 5000mah 5S lipo batteries in a 20s2p configuration for 74v 10ah. At the moment I break the pack back down to 5s each time I charge, which is kind of a tedious. I'd like to simplify the process, and I think that my new setup will work, I just don't want to fry anything, so I thought I'd...
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    Modern boardtrack-inspired cruiser build

    Amazing!
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    Building an e-gokart for my son with ebike parts

    Thanks for the reply! I think 20-30mph tops.
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    Building an e-gokart for my son with ebike parts

    I initially purchased parts to build 2 ebikes. 2 controllers, 2 motors, 2 throttles, etc... One was going to be for me, and one for my wife. I have a 7 year old son, and since I'm not getting much use out of one of my ebikes, I thought I'd re-purpose the parts for a gokart. My question is...
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    Modding a crystalyte 73v 40a

    Is there any way I can change the LVC for these? Any other easy mods?
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    Bulk Charging Lipo Video

    Very cool. Thanks Ypedal! I'm relatively close to you (compared to everyone else in the world). My wife and I have talked about taking a trip through the maritimes. Who knows, you may get a friendly knock on the door one day ;)
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    Bulk Charging Lipo Video

    Still trying to get my head around switching power sources, and all that. Do you have a meanwell ps, and 3 laptop power supplies? If so, why?
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    Upload Your Circuit Schematics & Requests Here...

    Looking for a schematic for a thermometer with alarm. I don't want/care for a display. Just an alarm that can be mounted discretely that will go off at a certain temperature. Also a simple LVC that my throttle would be routed through. Again, no display required. Thanks!
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    Vicky's NORCO Charger Build - Bangor Maine

    I have a very similar system. HS3540 with wireless controller. 20s4p Lipo. My bike is a hard tail dh. I have used lithium batteries for years, and had some confidence going that route. There are some awesome products offered by members of the endless-sphere community that make Lipo a much...
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    Oil cooling your hub- NOT snake oil!

    So what happens if I put more than that in?
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