Zero complimented the new motor with a new battery pack system with a range of up to 137 miles. Each model has two battery pack options allowing customers to select the range that best fits their needs. The Zero MX, XU, and new FX have the option of running the 2.8 kWh or the 5.7 kWh battery packs, while the larger, more powerful Zero S and DS use the 8.5 kWh or the 11.4 kWh battery packs. With the addition of an optional accessory, all models can be charged to 95% at CHAdeMO charging stations in less than an hour. These stations are the most widely adopted electric vehicle DC chargers with over 1600 installations worldwide. Nissan estimates that 2000 chargers will be installed in the US by the end of 2014, with at least 400 in California alone. To help get the most out of each battery charge, Zero motorcycles also use regenerative braking to help recharge the batteries during deceleration.