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18650 Li cells are the most frequently used cells in batteries, though the newer larger size 21700 are slowly be used as well now. The M50 is the latter cell made by LG. The other battery uses 18650 Samsung 29e cell. As vfr has said what is your controller current ?

You only have to really make sure of one thing and that is when the hub is fitted make sure the hub axle slit is at the bottom so that the motor cable exits down and then forms a drip loop to stop water ingressing in to the motor.

Whether a display or junky funky LED light sequence, if they go out/switch off then the issue is between said handle bar unit and battery. There should e no reason to look elsewhere, we have to try and read between the lines of the request as we find not all relevant info is given.

Maybe there are some Red ones against the rear wall.

Does the display turn off or stay on ? If it turns off then there is power disruption to it, if not then try the following. Check the hub motor connector (trace it from the hub axle), sometimes it may not be fully connected and only needs to be 1 or 2mm short of a full connection for the...

Is it transferable as this is what any one would want to know ? Personally anyone doing a favour has nothing to gain but helping someone out of a hole they don't want to be in.

Carrera's with Suntour system are just a PITA . So many having issues I just don't know why buyers bother if they do their homework properly.

YS battery 2012 is yose powers ebay shop. Pleased you are mobile again.

That controller is a Bafang controller so any generic one won't be compatible with your display as they use comm's protocols between each other though some parameter's may work. Also if your bike uses a torque sensor it needs to be a specific TS controller. As Sjpt has said please be more...

They are 2600mah China cells, that's to that can be said, 9 x 2600 gives you the 23.4ah capacity.

Is it jumping on the 11t or is it jumping between it and the next one up ?

A pic of any cell writing might be useful but if they are China cells they might not even be 10a capable ?

To be safe you can only charge the low cell group singularly with a max 5v charger with a low 300- 500ma charge to be safe and then you have to very carefully monitor the live voltage rise for each cell group.

I bought some QR panniers a few years ago and they came with three different size inserts for different size pannier rack tubing, the inserts for the pannier QR clips covered popular sizing 8 -15mm.

As can be seen 5 groups are very different, 3, 9 & 11 are by most standards way out of line. Your battery is unbalanced with a final voltage of 58.08v, a bms will not balance such a wide disparity very easily and one may have to try and manually charge up the individual cell groups keeping a an...

The way I suggested (disconnecting the bms) and most would recommend is the safe way, other wise bms damage is likely from arcing. You will have to carefully check the bms both sides for signs of damage with a mag glass or for burning, resistors/diodes can easily be fried as can the mosfets.

Yes, that is what vfr refers to.

If you want range then frugality is the answer no matter which e-bike, get used to riding in PAS 1 using your natural ability and with a little added assist long rides can be had. Save higher PAS levels for inclines only then change PAS down again.

All PAS levels above 0 cause voltage sag increasing more so on 3 -5 , when the load(current) is reduced to a lower level the voltage rebounds (gets a chance to recover) so the real time voltage/charge level will show. This is normal and all batteries will do this.

The bms has 15 pins measure it in two ways, accumulative voltage reading or individual cell group reading. Don't take readings directly off the BMS as it may/could give a false reading, disconnect the sense wire connector (it may be tight but will pull off). Take your voltage readings from the...