As is by now claimed only two forms of batteries are employed in lawnmowers, the guide acid battery as well as nickel cadmium (NiCad for short). The NiCad batteries are superior in effectiveness and so are surroundings friendly. The guide acid batteries need to be recycled. They can not be dumped in rubbish. The guide is usually a risky chemical leading to guide poisoning. For this reason when you substitute the guide acid battery, it's to get taken again for the vendor.