Zero Motorcycles will be offering some improvements for its electric-motorcycle 2011 lineup. One of the most important upgrades will be the ability for the bikes to be recharged at public charging stations, since it can now accept DC (direct current) fast charging. Aside from that, the bike can also use a plug accessory to make it compatible with any charger using the SAE J1772 plug, a five-pin charging system and coupler agreed upon by the members of the SAE, which is currently used for fast-charging stations for EVs such as the Nissan Leaf and Chevy Volt. Aside from that, the Zero S and Zero DS models have gotten an improved battery pack that the company claims will improve efficiency by 12.5 percent, allowing you to cover more ground between charges.