R
rat
I only get chance to use my z at weekends and battery kept dying on me , so looked into buying a battery conditioner so could leave it on charge all week . I could only find them suitable for motor bikes etc charging maximum of 30amps,untill was looking around in costco wholesale and found one that suitable for cars and can be left on all winter. seems to be great bit of kit, its made by CTEK ( zafir 90) . it cost me about £35.