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An Interesting Battery Pack ($100) This is a battery pack that would work with most 48v ebikes. It consists of 91 (13s7p) Samsung 22P cells. These cells have been around a very long time. The oldest datasheet I found was dated 2010, so these guys are going to be teenagers pretty soon. I’m not...

Ebay listing was LED MPPT Boost Solar Panel Battery Regulator Charge Controller 24V-72V CTK300-II I think my seller was wojiaoneline. $40. Oneline, not online. Didn't take that long, 3 weeks. Many listings all clustered at that price. US ship probably more.

I used to struggle with this, but now I would say it is outrageously simple. All you need is the Ebike MPPT charger from Ebay or Chinese sites and some folding panels. . There are a lot of RV reviews of folding panels on ebay. Folded, they would be easy to carry, but no power. Of Course. I was...

I live in a small town, maybe 20,000 folks, but housing is spread out so who knows that they are counting. When I got here, it was a bit run down. People moved old single wides out to $10,000 lots in ‘the valley’. Gee, now? They are developing the land just south of the old cheap areas into half...

Paul is out of that Endless Sphere world, and he's a very knowledgable guy. But he is a bit of a dinosaur. I loved his MAC motor, but I guess it's gone now, not in the catalog. That's too bad. He offered prototypes of different versions trying to push the tech. What won is volume and...

The Chinese want to own electric cars, so they are 'encouraging' the Koreans to manufacture in China. So, there are a lot of Chinese cells that blend with the Korean names. LG Chem will have major production in China (56%). There are some technology transfers, but people need to deal with China...

The Hundred Dollar Ebike Battery You can build an ebike battery in an hour if you understand the basic concept of ‘series’ power. The parts are simple. You buy 7 of these. You cut off the connector and carefully do a series connection (black to red) on each pack. Tape it up...

I think they call them active cell balancers, but like you say, there is not net charging. Will Prowse, who has an active YouTube channel for RV solar and lithium, tested some active chargers and found they were passive. People get a little crazy on this subject. My packs without a BMS stay in...

I was looking at the DIY market and finally bought a BBS02 from Bafang Direct. The US vendors tried to brand the 02 but I'm glad Bafang is over here. I can't find the MAC anymore. For all the froth in ebikes, it's not so great for DIY maybe. I like the new Bafang mid-drive, the M stuff. Even...

Ebike Batteries in Perspective Five years ago, when I was going to buy my first ebike, the battery was a limiting factor. Basically, a 36 volt and 8 Amp Hour battery retailed for $700 or so. We now see mostly 48v batteries, even in the low end stuff, and 12 AH is pretty standard. In the...

A Great DIY Tool Building a bike into an ebike is a great way to get the best value for the dollars you spend. On the other hand, there are some things you want to do right. If you follow what might be called industry standards, a DIY is comparable to any bike in terms of integrity of the...

An exemplary ebike battery performance Basic specs: a 36v 15AH LiFePo4 (pouch cells) Vendor: Sun branded, sold by top.pathfinder (Ebay) Price: $320 Shipped: June 2015 (from China by sea) In Service: August 2015 (800 Watt Ebikes) Approximate cycles: 300 Test Date: October 23, 2018...

Hi JR, On that Kickstarter that we were involved with, I think that was the NTS battery system, named for the ‘inventor’. They pulled the plug on that and there was never much of an explanation. It was like “Sorry guys, that amazing piece of tech is gone and you’ll get the plain vanilla battery...

I'm building a small van camper and trying to figure out a way to carry a bike. Most folders are a little big. They are like 3 feet by 2 feet. The 60# weight is a bit much to heft on to a roof rack, and that's what the fat tire versions weigh. The main feature of folders seems to be that they go...

The video is pretty convincing. I've teased Mikey at Blue Monkey about not believing in Bafang, not believing in 'light manufacturers' of ebikes, and not believing in higher power and TS plus throttle for MD's. Well, here it is, maybe a year late, but looks like the whole package. (I like...

The Revel is Winnebago's attempt to capture the extreme off road RV market. Some of the #vanlife people want 4wd. I assume you would want some sort of very serious off road ebikes. That would be mid-drive territory. You really have to say where you are starting, what sorts of trails, if you...

A decent amount of research and self-education will go a long way. Micah Toll has two good books, one on bikes, the other on batteries. He has a YouTube Channel. Micah markets the Vruzend battery system which is one way to build a basic ebike battery. He has some cells, from China, listed with...

The Mixte frame (Mix-Tee?) has the top bar somewhat lower. That is what the Trek has. It seems very strong, with the steel tubes at least. With the 52v battery I have, this bike goes mid 20's, but I use a 36v battery for the regen and range. There is going to be more wind resistance, sitting...

https://www.treehugger.com/bikes/should-mens-bikes-crossbars-be-banned.html I don't like climbing over the top on men's bikes. That last time I was building a bike, I wanted a step through. The dealer told me Trek made a step through. Well, not exactly, they make a women's bike that is a step...