Switched Reluctance motors, an old design is suddenly important now

Reluctance is an engineering term that (as far as I can tell) means that when you create an electromagnetic field (in the shape of a

The Electric Mini-Bike Craze, 10 Models

When I was young, one of my favorite memories was riding a minibike. For readers who may not know where that term comes from, back

Top 10 reasons to build / borrow / steal a fast electric bike

The other day while slumming it on another ebiker’s blog (which I should never, ever do) I stumbled across this article titled “Why you don’t

Why Lime Bikes are anything but green

Bright green Lime bikes, ebikes and scooters can be found all over many cities in the US. At first I relished the idea of a

Sheer Insanity: How I used a Sur-Ron to plant 500 trees in just one day

So I’ve owned a Sur-Ron Light Bee for about 2 years now. I’ve used it extensively to get around on my 42 acres and it’s

A history of all these weird electrical terms

I find this crap interesting. I readily admit that someone can be very good at building electric bikes, and still not know anything about the

Grand Theft Ebike : How the justice system is ill-prepared to deal with ebike theft

Here is something that has bothered me for a really long time. Why is it that when your ebike gets stolen it’s such an incredible

Serious about the climate crisis? Get an ebike

For the first time ever, Climate protests have brought the climate crisis to the attention of pretty much everyone. I’ve felt for years that our

Batteries that last 20 years? YES! (Single-Crystal NMC532/AG)

We wrote about how to double the life of your expensive lithium battery packs back in March of 2017 (for that story, click here). This

US National Parks now open to ebikes

As of August 29, 2019…the US Secretary of the Interior will allow pedal-assist ebikes in all US national parks, and according to order number 3376…”Sec.

Sur-Ron for $169?

This…is a SCAM! I wouldn’t have thought that I would have to write about this, but if you shop around for any product, and there

Walmart selling ebikes, and why I don’t recommend them

Don’t get me wrong, I buy toilet paper, food, shampoo, and other household items from Walmart, just like millions of other consumers, but…I have some

The Luna Wolf Pup Battery Pack

Last year, Luna Cycles produced a battery pack that was fully potted, and every cell is individually fused. They call it the Wolf pack. This

The Revel Propulsion Lightweight 450W Mid Drive

This is a new product, but it’s coming from someone we have known for a long time. Paul Daniel was formerly an engineer at Brammo

Lee Iacocca and the EV Global electric bike

Lee Iacocca recently passed away, and even though he is more well-known for other things, he was also a pioneer when it came to ebikes.

Introduction to battery pack design and building, Part-3

This third installment is mostly about the special considerations that are needed when building a high-amp battery pack, plus…I will list some of the products