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My sarcasm went a bit overboard perhaps but impediments to charging curtail the utility of ebikes and that must affect their uptake. Anyway, what's the public's take on battery fires where you are (presuming still Austria) and how are the authorities responding? It's been said that our fires...

Thanks for that, did some digging and LEVA-EU have this to say about anti-tampering: "It has also appeared that the anti-tampering measures in the standard need to be improved. The wording is unclear and the requirements themselves go against EU policies. For instance, manufacturers should give...

By 2 piece pattern I was thinking of your CNC part but in 2 overlapping pieces, using the two 5mm eyelets and not a jubilee clip. Then precise orientation of the 3 holes and the flats is no longer critical, in fact the holes can be oversize, exhibit waterjet taper and what not. Just take out...

The cheap convenient gizmo is that same item, it could either cut the charger (NC contact) or power a second alarm (NO contact). But recall saneagle's wise words, basically you need to be sure that safety gear's reliable.

Who was it who tried to introduce a tamperproofing clause and through which means? It may have a place but I think its proponents need to be aware of better safety measures, and would we want to be driving tamperproof horsecarts these days?

So to paraphrase the CSA briefed the IO, the IO examined the charger and battery and briefed the Coroner who officially concluded they probably didn't match. Bike chargers and batteries of 36V and 48V look very similar before they're burnt, although in this case the parts may have been...

Hang on, aside from the hole clearances that's a zero tolerance part. Are the holes slightly oversized as a simpler alternative to arc-ed slots? That would work but the torque limit for the 5mm frame threads will be low. Maybe it's wiser to follow the traditional 2 piece pattern with high...

Nice, how did you transfer from printed template to steel accurately, especially the hole with the flats?

Here's AlanB's TA done as saneagle prescribes: and my Hammer arm done in the same sequence. You want an arm of the TA snug against whichever eyelet so as not to exert leverage on the 5mm threading.

Meths is what I'd try for loosening the collar, or failing that water with a drop of detergent.

You're describing a fault within a cell, while I was saying a BMS is unfit if it can't prevent damage through over-charging, an external factor. The BMS controls the electrical interface to the outside world i.e. the battery ports; it doesn't have that control over physical events like cell...

No the over-voltage sensing is at cell level (which I should have written) so I think you'd need 2 cells in a P group to fail simultaneously to go undetected. I think temperature sensing should always be at multiple points throughout the pack, as some batteries are, because both internal and...

Yeah they could be clearer. Is the Yose's range worth the cost of a mixer? You wouldn't need the mixer if you take the pins out of the Yose sled or rehouse the controller in a 'ABS project box'.

A pair of templates expose either all the + slots... There's probably a tactful admonishment on the reverse :)

In my own tribute to Flecc's "EAPCs/Pedelecs vs the rest" crusade (to get that distinction widely used and into the media), I want to propose that we call rubbish batteries Cell-packs. Any safe BMS protects against over-voltage, over-current in and out and over-temperature, plus other functions...

To be picky for a moment my understanding is that it does have an on/off switch, I'd assume with on being activated by a gentle sharp tap and off by disconnection from the cradle or a timeout while disconnected, or something along those lines. They mentioned an accelerometer, the output would...

The fumes are toxic and sometimes followed by an explosive vapour cloud. You must have seen video of people peering at a battery before being engulfed in flame: in simple terms TR is exponential so there can be a long delay from it starting, then it can go from fizz to bang very quickly. The...

Interesting (and to be expected), can you recall where you saw them?

Yes, you only have to look at it hard. When you knock firmly on an Aptera they can roar off into the distance. :D

The on/off is done with an acceleration sensor (like Aptera's knock-for-entry) to keep the case watertight. The cells are gripped at 90 degrees to the main vibrations on a bike, and the 48V is presumably the same price as 36V but 39 cells instead of 40. Most of their site makes good sense to...