panasonic battery

My KTM E-cross P has a Panasonic Motor and the battery cells have died. I am desperate to find a replacement battery 48 volts 12 AH, can anyone recommend a solution or replacement battery that should work please

Hi everyone, following a year of fun I have decided to sell my Wisper 905SE Crossbar electric bike so I can get a more expensive model in the spring. The bike is in good condition and I have owned it from new. Currently for sale new from 'e-bikes direct' (where I bought it) for £1,279, I am...