Recent content by Username1

For better or worse the anonymity part is very unlikely at this point for multiple reasons. However I would like if the government mandated that DC chargers must provide 0-1000v and allow access to PEVs (with the appropriate safety standards applied of course). Or if a very influential company...

That’s messed up if true, but wouldn’t surprise me. Ideally chargers would be anonymous, widespread, allow all types of PEVs and electric vehicles (0-1000v), and really they should be a public utility. However there’s almost zero chance the government would do this properly, and Tesla is all...

@amberwolf Do you think the V3 chargers can actually charge from 0-500v in practice? I know most other chargers only go as low as 200v (some do 50v), but if superchargers do go to 0v that’s seems like a big deal.

I'm far from an expert on this, but I want to point out some observations I have on the subject. Since the last post here, Tesla's NACS standard has been fully adopted in North America going forward. That seems like a step in the right direction for DC PEV charging for a few reasons. Firstly...

What I'm talking about is a charger that does constant current until the chosen max voltage is reached (4.2v for example), and then shuts off instead of continuing to hold the voltage while the current decreases to near zero. In other words, skipping the CV phase by automatically shutting off...

I can charge to 80 or 90% no problem using an adjustable CC/CV charger I bought for this purpose. It's not a practical issue I'm personally having, it's about CC/CV as the default method being bad for most customers. If you released a PEV with a CC only charger that displayed 100% after...

Sure but what's the point, to add a tiny bit of extra charge while being only a little slower than CC? Why not just do away with CV entirely for the average person/device?

Sure it's partly about advocating for lower states of charge, but it's also about NOT using CV as the standard charging method for the masses. The ONLY purpose of CV is to cram 100% charge into battery. Manufacturers from cars to phones all recommend a lower state of charge. The exact...

That's correct. Many CC/CV chargers can be set to a lower max voltage such 4.1v or 4.15v per cell, in order to prolong battery health. Instead of lowering the max voltage, you can simply set it to the full 4.2v and it will naturally charge to around 80-90% while charging much faster by skipping CV.

If you designed it from scratch, could a steel rim itself be used as the magnet back iron? I’m talking about a motorcycle type rim, and placing the magnets on the flat centre channel (facing the hub). Obviously the supports would need to be placed on the sides, not the centre. Is there any...

Above is a quote I read about this subject, would you say it’s correct? For some reason my mathematically retarded brain can’t understand the 3rd doubling (highlighted in bold). —————————————————————- Let’s give an example using a fixed ride duration. If this is not correct please tell my...

I’ve read that doubling your speed requires 8x the power, and I’m trying to understand why. Here’s my current understanding… Because the speed is doubled you’re encountering (slamming into) twice as many air molecules, which on its own requires 2x the power. Because the speed is doubled you’re...

In my opinion the standard charging method for l-ion should be CC instead of CC/CV. If you think I'm wrong please read this and tell me why because I must be missing something. Constant current (CC) gives a linear increase in charge over time. Once max voltage is reached, you end up with a...

Yeah if you use the external Chargery BMS you need balancing leads coming from your battery. I guess having the BMS in the battery case is best since you only have positive and negative wires leaving the case. This is especially important for swappable batteries, because having to connect...

I was looking at "Chargery" chargers, and saw they also have BMS units that hook up to their charger. Does this mean it's possible to run an ebike battery without any BMS permanently hooked up to the battery? It seems all production ebike batteries use an internal BMS. Could you build your own...