OFFERS CONSIDERED 52 volt (14s 7p) 17.5 Amp/h 60 Amp BMS XT90 Connector 98 Samsung INR 18650 Cells Battery size: 260mm X 150mm X 73mmm Weight appox 6 kg I had 2 of these batteries made but have realized that it was overkill . I am able to ride in excess of 100km with still ample of charge left. This resulted in me not using the second battery which has become excess to my requirements. Comes with a brand new charger. The voltage shown in the photo is as measured when taken out of storage. The battery is about 5 months old. I have used it for one short ride before placing it in storage. Ideal upgrade for any 48v system. It will work without damaging your controller. I will supply a mating XT90 for battery to connect to your existing wiring harness. Suitable battery bags can be bought to house the battery