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Agree with everything you say. I guess you're correct that its dangerous to over simplify this subject, especially as there are so many cheap investors out there which aren't clear on their specifications. Just for interest, I have just checked my Shimano E6002 and its rated for 100-240V input.

With these chargers, it is probably easier to calculate from the output power. Because most of the chargers are designed to work over a range of voltages (100-250V), the current will be the maximum for the lower voltage go maintain the input power. For your example above, it is likley to be 100V...

Have a look for 12V investors. I'd suggest a minimum of 500W. You may want to be careful using the cigarette socket to power it from for long periods as it may not be able to supply the power without overheating. Do you know what power your charger uses? Much above 100W and you may be pushing it.

A good little sideline for someone who has the skills and kit. Unfortunatly I have neither!

Sorry, yes, quite right. I was referring just to the E8035 batteries. The external batteries seem to be reporting more realistic values.

How do they do that? 3rd party battery? Seems rather dodgy! BMS' do quite a lot including preventing over voltage of cells and so potential fire etc.

I have seen the comparison test in this thread, but wouldn't call it scientific. There is a lot of anecdotal evidence in the thread that the capacity reduction is real, but that doesn't prove it is (or isn't, for that matter). My point is, there is still no conclusive evidence if the degradation...

All good points, although I'd have thought even less people would have the windows software than the app, so still a small sample of users. The only reason I think it could be real is because, as you say, they'd have fixed it by now. But, I still fail to believe batteries can be so bad that...

True. Against which, how many people know about the ST unlocked app and check their battery health? Probably only a small proportion of owners. I also still have the feeling that its a software issue rather than real degradation, but have no way to prove it. But then, if it was, they must know...

In case anyone else has the same problem, I managed to sort it by unpairing all bluetooth from the phone.

Did you change your PIN on the bike from default? If so you have to enter it in STUnlocker settings first, before trying to connect Sorry, I should have clarified. I've been using the app regularly, its just this week it's stopped working. Not made any changes to the bike or app between it...

I think there was a thread on this a while ago, beleive the consenses was that there was a new 2yr warranty. Would be good for you to report back though (assuming yourd getting it replaced).

The app keeps stalling when trying to connect to the bike at 24%, and tben says the connection was interupted. I've tried it after playing with the phones bluetooth to make sure there isnt anything else connected at the same time which may be interfering. Anyone have any ideas?

Yes, just hook up directly to the battery. If the battery is wired into the vans electrics, the negative terminal should also be connected to the vans chasis (which it will be if its connected to any kf the vans negative wires anyway), but if its a stand alone battery it doesnt need to be.

I dont think you need to earth it as; no need for 12V and the invertor 230V output earth will be connected to neutral.

How do you wire that into the car? Is there already a high current 12V output on a Tesla? Verh clever if so, and an advantage of an electric car I hadn't thought of!

Brill, thanks. I've only just got the £50 front light from halfords, but would be good to have one which is powered from the bike itself.

Does it mount to the stem bolts? Looks like decent value when the other Ebike lights ive looked at are multiple times that cost! Does it have an internal battery too?

Out of interest, could you feel much difference between the EP8 and E7000/E8000?

More than. My charger doesnt draw above 100W, so thats well upto the task. It may be a fairly inefficient (read expensive) way of charging though. Not sure of the circumstances where you're looking to use it, but have you thought about a car battery and invertor if only for a quick topup?