KTM Elycan 27.5 with Panasonic rear motor

[Nealh]

The two cells are of different brands to each other, what spec are they and what spec were the originals. 54v is ok but the battery is only as good as the weakest cell which may be one of the new ones.
Will the bike work as it is ?

 

[Galaxya6]

The two cells are of different brands to each other, what spec are they and what spec were the originals. 54v is ok but the battery is only as good as the weakest cell which may be one of the new ones.
Will the bike work as it is ?

They are the same brand 2000mAh have tested the new cells and they were both fine. Pulling 4.2A at 4.2V using my tester.. I need to try on the bike.. it will work but once drained the battery probably will not charge as it sounds like the BMS doesn’t like being fiddled with.. I bet there is some software that allows the battery and the controller/BMS to be paired and this is lost when the battery is tampered with…

 

[Nealh]

It may not charge as the voltage is above 95%, try draining it and then see if it will charge.

 

[Galaxya6]

It may not charge as the voltage is above 95%, try draining it and then see if it will charge.

Hi. I tested each bank of cells, all reading 4V, 4.5A using my tester. Bike works fine.. no problem riding and putting the power down. Drained the battery to 88% but it won’t charge. Led on charger flashing and when bike switched on I get an err 3 and the motion graphic flashes. When charger unplugged the bike works fine. Thanks for everyone’s help so far.. hoping there is a work around to reset the BMS???

 

[Nealh]

The older panny hub bikes do they use comm's between battery & controller ?
Are there more then two wires involved for charging ?

 

[Galaxya6]

The older panny hub bikes do they use comm's between battery & controller ?
Are there more then two wires involved for charging ?

Hi, yes two thin wires and two larger ones for charging.

 

[Nealh]

What about battery connection to controller ?
If the comm's are only charger to battery then one could ditch the BMS and fit a generic one and use a generic charger. But if the battery uses comm's to the controller as well then one can't.