Rick's Motorsport Electrics offers this Lithium Ion battery compatible rectifier-regulator that is designed with a lower voltage set point to work with lithium ion batteries. This is an upgraded design that eliminates the use of the OE black wire and it is designed for use with Aprilia OEM # AP8124831. The 02-03 RSV1000 Mille applications have a different brown connector so customers will need to hard wire for those models.