The key difference when choosing between planer is, first of all, the blade width. The industry standard is the 82mm width, however they are larger sizes available. After that, the next choice is deciding on the depth of cut required. These tools have the industry standard of 82mm blade width.

With regards to cordless (battery powered) tools there are a variety of chemical types; Li-ion is the latest technology, prior to that it was Ni-MH and Ni-Cad was the original. The higher the Ah (Ampere hours) the longer the interval between charges; the fewer times you recharge a battery the longer it will last. Some cordless tools can also come without batteries - sometimes referred to as naked, bare units or body only. These tools are supplied without a battery or charger and more often than not without any accessories; as a result they are significantly cheaper in price.