It makes sense to me tho.
12s2p P42a
43.2(nominal voltage) x 8.4ah = 362.88
Which rounds up to 363
Oh I see on their website it says 10.1Ah, yeah that’s BS
Okey so this isn’t necessarily immoral but definitely confusing; they use 12S packs and they say the market is used to 10S packs, so the Ah capacity is multiplied by 1.2 to reflect the increase in energy. There’s a grain of justification there, if an uninformed consumer looks just at Ah and doesn’t see or understand 43.2V vs 36V nominal, but Wh are a perfectly good unit of energy. I asked them to change it or at least make it “6Ah equivalent” if they want to keep that silliness
They also sent me datasheets for what cells they’re using, and did answer with speed and detail that I’m really not used to. Little summary of battery stuff for anyone who needs it: three properties of cells we’re interested in are capacity in Ah, current output in A (you can also look at power output in W instead), and size. Each cell will perform differently at different current outputs, where depending on its chemistry it will hear up more or less and waste some energy when drawing a high current. High Power (it’s a descriptive label rather than a hard line) cells are ones that are designed first and foremost to output lots of current without overheating, damaging themselves, or just losing lots of capacity, often referred to as Power cells. These can put out anywhere from 15/20A up to 45A for a reasonably sustained time under certain conditions, lots of asterisks but that’s the rough criteria. High energy cells instead focus their design on fitting as much capacity as possible, and can generally output maybe up to 15A, but often not ideal for use above 6/7. Normally if you want more power output you sacrifice capacity, or vice versa, unless you just get a bigger cell or a newer technology. A high capacity cell that’s used outside of its power range not only significantly shortens its life and may not be safe, but also may not even get you very far. Nominal capacity drops a huge amount of you exceed the power or temperature limits, so a theoretically lower capacity cell may perform better.
Editing in a bit more context here: in bigger packs the situation changes. If you add more P groups - moving from 12S2P to 12S6P - you effectively reduce the draw on each individual cell. 60A from a 2P pack means 30A from each cell, but from 6P is only 10A per cell. An energy-focused cell might be completely unsuitable for a small pack with only 2P, but great for a big pack, because you get lots and lots of extra capacity without running into the power limit.
The cells in Tynee’s stuff are much better than no-name but still not ideal. For bigger packs (their “10.1Ah” one) they’re using Molicel M42, a 20700 medium power cell. These are a middle ground of quite high capacity - 4200mAh is more than any 18650 size cell because these are physically bigger - and decent enough power output. Datasheet claims 20A output and our resident battery wizard Mooch rates them quite well up to 15A. The smaller packs are 2500mAh 18650 cells in a model that seems to have very little information available online. I think they must be quite old, they’re not especially high capacity, the power output is claimed 20A so I’d take a bit of a guess that they’re good for somewhere in the 12-18A range. Shortish version; these are reasonable enough packs and on a hub motor short board they’re probably fine, though I don’t think the range will be notably better than the meepo. If this was going into a bigger belt board the meepo would probably beat it for range, and I still think you’ll notice a bit more power on the meepo
Ah thanks a lot for the explanation man!
I feel like the main reasons I’m leaning towards the Tynee Mini 2 is that it seems more weather resistant since they’re confident enough to say it has a an IPX6 rating but Meepo says nothing about water resistance and quite a lot of their users say that you should treat even slightly wet roads as the plague with their boards.
Cloudwheels instead of Meepo’s own sleeves I would assume is a slight benefit?
tail guard and front protection is a minor benefit as well.
Not sure if Hobbywing is still considered to be slightly better than Lingyi even after the LY-FOC 1.0 as well?
and I’m aware that the certifications are likely bs but I’ve heard so many cases of meepos dying like first time someone drove through a puddle, my Wowgo Mini lasted for like 2 years of using it in all weather and it even being completely submerged a few times.
I’m in the same boat as you with those, real clouds might be nice, not sure about hobbywing vs LYFOC, guards can’t hurt. I like my cloudwheel 120D but idk what the donuts or the 105mm are like
For waterproofness you might wanna look into a unibody board instead like the miles phantom, boards with enclosures imo are really hard to seal effectively.
Miles Phantom really doesn’t seem like a good deal imo, like $4-500 extra ($126 shipping to Sweden) for a board I’ve seen quite a few people having issues with:
Yeah I’m aware of this post, the OP did say it’s been ran over by a car. But yeah if you’re going for bang for buck the tynee or meepo (if you can deal with lingyi) is a better option.
Here’s a video review of the tynee, if you’re curious.
Belted version though, which I’d recommend to you, hubs are shit, and you’re not saving that much weight. Plus with belts it’s way easier to changes tires if you don’t like the stock ones.
I don’t wanna have to carry a skate tool and belts with me wherever I go because one might snap
belts breaking aren’t nearly as much of an issue as you’d think – many people go thousands of miles before they need replacements. definitely worth the trade-off my dude
im selling a backfire G3+ swapped to a loaded poke deck if you’re into that
Yeah all my boards are belted and I never carry a belt with me. Just do some maintenance and replace them from time to time. It’s a very small tradeoff for a lot of pros. There’s a reason almost all board in higher price categories have the motors detached from the wheels. Longer motor life is is just one of them.
I had a very shitty experience with my last Chinese belt driven esk8 (Exway Flex) it went through like 12 belts in 300km. I already have a large 12s6p belt driven esk8 with thicker belts and better belt tension adjustment.
For my mini esk8 I want hubs
I would only ever buy used PEV’s from people that lives nearby, as in max 1h away from Gothenburg.
suppose i dont blame ya. that tynee mini is lookin nice
I have to agree actually. the amount of gravel and crap they pour out on the streets during wintertime is absurd. Running small street wheels with plastic wheel pullies is not the best idea. In my experience there are soo much more shit going through the belt system with a small forward facing belt drive. And plastic pullies have a higher tendency to keep the rocks instead of spitting them out. I have managed to snap three of them in a single run. wider belts lasts longer in my experience, as when cuts and nicks from pebbles takes out a portion of the belt you have more meat left.
I would still probably use belts over hubs though.
im not surprised to see soo many people wrecking on shortboards though. short wheelbase & small pu wheels and a powered setup is just so much less forgiving. Especially in Gothenburg.
My larger board is tuned to handle the tight turns necessary for the city, still comfortable at top speed though.
and for smaller errands going to the grocery store and such I actually lock the board outside with a shitty bike lock. and on top of that I have an AirTag in it so I feel fairly comfortable doing so.
I went with the 105 cloudwheel donuts and Tynee Mini 2 for when I don’t wanna bring my big board.
I’d probably like to do a deck swap and get help from someone to build the battery inside an enclosure made for the deck in the future for my large one as well since it’s a quite inconvenient setup ^^
Yeah I see what you mean now with inconvenient, for sure a small little board might be a pretty good companion there. 105 wheels is a good choice there I think keep an eye on the clouds though.
I would also ride with a higher safety margin on shortboards, you probably already know of the usual things that will get you running off your board.
That battery must be massive!
Hans might be the guy you want to talk to there. And then get hold of an enclosure that is suitable.