Jump Starting A Mazda Mx5 Can I Use My New BMW To Jump Start My Old Mazda Battery?

Can I use my new BMW to jump start my old Mazda battery? - jump starting a mazda mx5

I have a Mazda MX5 age (99 models) and a BMW 3 Series (2008 model).

The stack of Mazda is maximized and I have no breakdown cover at him. Can I use my BMW at the launch of the Mazda? Where are the BMW battery is not compatible with jump ropes, etc.?

Thanks in advance