Recent content by George S.

  1. George S.

    A Van and an Ebike

    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...
  2. George S.

    The Hundred Dollar Ebike Battery

    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...
  3. George S.

    The Hundred Dollar Ebike Battery

    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...
  4. George S.

    The Hundred Dollar Ebike Battery

    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...
  5. George S.

    Balance Charging? 100% Charging?

    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...
  6. George S.

    Soma Wolverine 4.0B Gates Carbon using Rohloff SpeedHub

    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...
  7. George S.

    Ebike Batteries in Perspective

    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...
  8. George S.

    A Solid Soldering System, and Cordless

    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...
  9. George S.

    DIY Type Ebike Battery, 3 year test

    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...
  10. George S.

    Nice DIY Story

  11. George S.

    New Juiced Bike Model: The Scrambler, fat 20" Wheels, Class 3, Double-Seater

    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...
  12. George S.

    The Ultimate folding bike?

    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...
  13. George S.

    Torque-sensing BBS-HD Bike

    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...
  14. George S.

    HUB vs MID DRIVE - how can I compare?

    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...
  15. George S.

    Need help picking a build

    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...