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Planemo

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Planemo last won the day on April 28

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About Planemo

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  • Location
    Essex, UK
  • EUC
    V5F, Z10

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  1. Yep, its a bit of a pain but once done its never moved. I run mine about 1.5 degree tilted back. This is the vid:
  2. Out of interest when did you buy your Z? Even better, if you have the serial number we can obtain the build date.
  3. The BMS is hardware. It contains many physical electrical components and any one of them could cause an issue with charging. Its mounted i side the battery pack. Given you can charge no problem through the main power leads (and both packs too) it suggests the bms is the problem, although like you say, there is an outside chance that the BMS is ok and there may be communication issues (maybe the motherboard 'switches on' the bms?) between the motherboard and the bms as there is deffo some kind of comms between them but exactly what they are I dont know. Given that the bms is irreplaceable, if it was my wheel I would pull the whole thing to pieces and make sure that at least the feed from the charge port to wherever it goes has connectivity. Long shot but worth a go because any other options are big grief. You can buy replacement motherboards but again I cant help feeling that this is a bms issue.
  4. It could be the BMS. @Girth Brooks had the same/similar problem I think. Not sure if he could charge his wheel via the main plug or not though... If its the BMS you are a bit stuffed cos I don't think you can get them anywhere
  5. I wasn't trying to answer anything. Just letting you know that in our MSX example, charging at 10A is within manufacturers spec. Thats not my point, thats fact, and won't damage the cells as you suggested it would. Not sure why you seem to be taking offence at everything I post so I will bow out of this one now.
  6. Make it home, maybe. But a 1 hour charge at 1.5A would mean such a low mile per watt-hour return that you could probably walk it anyway. And in less time than the 1 hour you spent charging. And your point would assume you had the charge lead with you. I guess I am saying that I would just plan things better or have a bigger capacity wheel. I am not saying we all have to agree, far from it. I am just putting my point across, as you did yours.
  7. Standard charge rate for Sanyo NCR18650GA is 1,67A. So even at 10A charge, the MSX used in the example is within manufacturers charge recommendations. Point being, 10A isn't even 'fast charge', it's 'standard' charge.
  8. Re: 'top up' lets take for example an 1860Wh MSX, which is a fairly average size battery these days. The slow charger (1.5A) will provide around 6% battery per hour. That had better be a very large cup of coffee you have at your visit for your top up to make any difference. This point also applies to your 'change plans when out and need a charger'. Re: fast chargers reducing battery life/increasing fire risk, no they don't as has been explained well in posts above. Re: overnight stays yes slow chargers are great but given that slow chargers are small and light, for me it's not an issue to just pack it with everything else . I guess it also depends how many times you take your wheel with you for overnight stays and/or vacations. Re: not having the same needs and demands, I get that, which is exactly why I added 'YMMV' to my last post. I was just trying to give a different perspective on how useful (or not) an onboard slow charger is. As you say, we all have different needs. I will make it clear that I am not against onboard chargers. The point I am trying to make is that EUC batteries are getting exponentially bigger, and so for an onboard charger to be worthwhile (to me) it needs to be high amperage. This means big components. If the manufacturers can make it work in the confines of an EUC then great. I can see an argument (possibly) for onboard 1.5A chargers on small (say 320Wh) wheels but if you are really using the onboard facility often then you would have to question why you wouldn't just buy a bigger wheel and avoid the inconvenience of range anxiety/charging in the first place. Maybe the last miler crowd could benefit where say a V5F is great, portable, and could get a (relatively) worthwhile battery gain in an hour at the coffee shop but given how many people are buying 1000Wh+ wheels these days I would say it's quite a small market.
  9. Not wishing to be pedantic but this isn't correct. Gas engines have power that continuously grows with rpm, but the torque falls off way before the max rpm. In fact, the torque can be so poor at high rpm that the power (a multiple of rpm and torque) can drop considerably prior to the max rpm. In any event, I think I know what you were trying to say, but using a gas engine in the context of your point is probably not ideal. Your comment re BLDC motors losing torque with increased rpm is of course bang-on and should be the focus of every EUC rider
  10. I just don't see the point of a built-in slow charger when the wheel will always be at home where a normal external charger would be. I think it would be more beneficial to use any spare space in the wheel with more batteries instead of slow charger components but YMMV. A built-in fast charger would make sense as it could be used when out and about rather than carrying a brick in a rucksack.
  11. Granted, but from what I have seen the implementation leaves a lot to be desired imo. It seems more of an 'afterthought' than a real cooling solution. Plus most wheels aren't vented either. And going by the sheer amount of air going through my charger, and the heat it exits at, the charger does require a very good cooling system. Point taken re PFC though.
  12. Bear in mind that the MAX only has a 550Wh battery. And if I am not mistaken, it still takes 6hrs to 'fast' charge.
  13. I would have been 100% in agreement with this when I got my first wheel but I think things are very much different now (and I suspect they would be for many riders who upgrade their wheels). The problem is that the standard chargers (1.5~2A) are only of any use when charging for many hours. That limits their use to home or work, and in either of those cases an external charger isn't really a problem. However, I still liked the idea of fitting the stock charger into the wheel and many wheels can accommodate it (MSX/Monster/Nikola unless you have the huge battery options) but the reality is that it's a bit pointless. Batteries are now at such a size that we need at least 5A, preferably more to make a dent in battery percentage within a reasonable time period. By 'reasonable' I mean workable if using it to charge whilst out and about. But taking into account that even a 6A charger will still take 4hrs to fill an 1859Wh MSX, the issue becomes size, weight and heat management. I just got my 6A 84v charger and it's massive, because it's necessary. A huge aluminium box with a large fan is needed to keep it happy and I'm not entirely sure you could ever fit the guts inside a wheel without issues. At the very least you would need to consider splashproof inlet and exhaust ports for the fan because you would need a huge heatsink otherwise. Admittedly I think there are smaller 6A chargers out there but the ones I like (Wate) are built properly and I wouldn't want anything of a lesser quality either inside or outside the wheel. Go to say 10A chargers (which I think is what EUC's will need soon when everything is above 2200Wh) and the problem of size and heat management becomes a real big issue if fitting internally.
  14. Ah OK cheers Seba. Hansolo's vid gave me the impression it was already on the store but tbh I wasn't listening properly as the kids were screaming in the background
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