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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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    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

    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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    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

    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

    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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    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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    Will this ps bulk charge lipo?

    I have a server power supply that is 12v 500amp (pictured), it is a ESP115. Currently it is used to power my balance chargers. Is this a switching power supply? Can it be used for bulk charging lipo? If possible I was going to connect it to one of Fletcher's Mini Meanwell Limiters, but wanted...
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    Will this battery configuration work?

    I'm setting up my first ebike. I plan on running 16 5000mah 5S lipo batteries in a 20s4p configuration. This will give me 74v 20ah. I think I have the configuration set up right for use with my motor/controller. All the battery packs are 5s 5000mah. I want to reconfigure the battery pack...
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