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Have for sale a TGA 24 v Crank Drive 20 inch bike, all working OK, with spare & original charger. Has SLA batt system. Drives through Sturmey 3 speed rear wheel. Works fine as is or could be basis for say hub motor crank drive project. Some rust on rims but comes with spare donor wheels with...

I am only now an occasional rider thanks to other commitments. I remember researching Li-ion calendar life vs Li Po4 - At the time you needed to be on the bike 4 days a week to use up the 2000 cycles in 10 yr calendar life of LiPo4, & 3 days a week over 5 yrs for the 800 cycles of Li- ion...

Saw these 'fat tyre scooters' on Alibaba https://www.alibaba.com/product-detail/Fat-Tire-EEC-COC-CE-1000W_62136904805.html?spm=a2700.7735675.normalList.17.ZkLARB&s=p It claims up to 50 kmh, climb angle of 25 / 30 degrees, all are 60v, 12 or 20 Ah batt. Some have lights / indicators & claim an...

I have a 408 from about 2007, & a 408 clone from 2005, (Golden Island HBM 36) - Both direct motors laced into 20'' Front wheels. The HBM 36 is now running on a self learning sensored 15A @ nom 36v. Some years ago I was told by E crazyman (supplier of controllers on ebay) that this motor could...

Does anyone have a drawing for the above motor, what I need is the flange dia (spoke hole centre to centre across the flange), the flange width, & the offset info for a rear wheel, as here https://leonard.io/edd/howtomeasure I hope to get the spokes from bmsbatt at the same time as the...

PSB America - on freesat showed ;In Search of the Better Battery, these things often are repeated - or it might be somewhere on the net. Showed various Li cells, how they are made & common causes of failure, also various promising chemistries under development. One thing they did not mention is...

Can anyone tell me the difference between these BMS, first one says no balance, but lists cell max & min voltages etc, seems to do all it should...

Hi, Looking for above cell in UK / Europe to repair pack. Only $14 from Bmsbatteries but shipping a killer. open to other idea such as can I substitute another cell same chemistry & roughly same Ah on BMS common to both. Otherwise am thinking as last resort to get 8s BMS 24v nom, rescuing some...

Found this supplier, they do seem to understand the codes thing (unlike BMS batts) I have asked them if the 12 is the most torquey they offer, to see a graph of the 12 @ 36v nom, & the price per unit if a group buy of 8 motors could be got together.Also if the 8 units can be a mixture...

Hi, does anyone have lying around a good used pouch cell of the type mentioned above. I built a pack some years ago from parts from Bmsbatteries.com One cell has puffed & is at 0v (all others fine @ 3.3v) This has killed my battery for now, the cell went wrong in over winter storage & is not...

I have a TGA 20'' folder, an early mid drive bike with crank freewheel. The motor is a 90 degree worm drive primary (about 50% efficiency, 24v nominal, draws 35A peak & 24A normal.) This needs two 18Ah SLA's so not ideal. The rest of the bike is not bad with hub brakes. I looked into a Cyclone...

Found this as an alternative to the ebikes ca sim. http://www.electricbikesimulator.com/firms.php?language=en Has the Cute Q100/100H/128H info from bmsbatts & elife bikes.Info regarding std Q100 is absolutely on the nail at 29 Nm @ 15A 36v. The 100H is said to be 35Nm. They quote the 128H @ 40Nm...

Is it possible to use two identical 36v batts in series at times for high speeds, & then to parallel them to give more hill climbing amps (at lower speed) when needed. I am led to believe that two bms units cannot be seriesed up. If not would it be possible to develop a bms that can do this...

Anyone remember the perspex canopies as fitted to the chopper style Y2K ebikes? this was a few years ago as seen on Power Assist forum. The name Y2K seems to have been taken up by motorcycles now. I can only find the Velotop (very expensive & inferior to the above) I am thinking of a bike for...

Looking for above motor used, must have good planetary reduction box, no matter if controller fried as can be fixed. Pref UK / EU as easier shipping

I have been told it is possible to do the above using schlotty diodes to prevent one pack 'back bleeding' into the other. I can see it working with two packs of the same Ah & cell type. Otherwise I think the pack with the lowest internal res would tend to discharge first, but also one pack...

I married a KU 60 self learner universal controller to a direct motor (Golden HBM, a slightly more torquey 408 clone) Works well but I was told that I could increase the amps through this motor without harm. I cannot now find either a KU 90 or 60. could anyone reccomend another self learning...

I ordered one of these, seemed a snip, may or may not be OK - is 30A max constant http://www.ebay.co.uk/itm/Battery-Protection-BMS-PCB-Board-for-10-Packs-36V-Li-ion-Cell-max-40A-w-Balance-/111623326214?pt=LH_DefaultDomain_3&hash=item19fd44ca06 Also a 25A (last one) from this guy, he has many...

Has anyone used this BesTech D178 Shunting BMS in a build? http://www.bestechpower.com/37v10spcmbmspcbforli-ionli-polymerbatterypack/PCM-D178.html I would ideally like to parallel an LED with each shunting res, this is to show when all cell groups are shunting. (this inspired by Ping batts &...

Some while ago I built a battery from BMS 7070260 Lipo cells, at the time they were on a really good offer & pretty much the best bet for a low power motor. Have been looking into making another but with these cells...