recieved with zero charge on the cells. to my knowledge lithium cells does not like to be totally discharged. don't know if it's going to be a problem yet. time will tell.
Took a while but was pretty much within the 23days as promised .Very well packaged and seems to function all right I have charged it once and was just over Seven hours but lasted for 100Kms assist on a Bafang BBS02B . Had I not already ordered the motor I would have ordered both from this supplier . It sucks getting the motor ahead of the battery .