Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Arbalest® 15W /3.1A Dual Port USB Car Charger Black for Samsung Galaxy S4 S3 S2 Galaxy Note 3 2 Tab 2 3 , Motorola G Droid Razr Maxx; HTC One X V S ; LG Optimus G2 ; iPhone 5s 5c 5 4s 4 iPad Air ipad 2 3 4 mini and More
Product description: The Arbalest Dual Port RAPID USB Car Charger is perfect for people with multiple devices that are on the go. The Dual Port allows you to simultaneously charge your Apple and Android devices and powerful enough to handle future releases.
Product feature: Simultaneously Charge your Tablet and Smartphone (or two Smartphones) in your car with your existing device cables, 3.1A of Smart Power Output to two separate USB Ports, one for your Smartphone and one for your tablet, 10-18V DC Power Input, Provides maximum charge speed to devices for uninterrupted performance of navigation and media streaming utilities, Smart Charge technology prevents your device from being overcharged, Perfect for people with multiple devices that are on the go
Product brand: Arbalest
Target attributes: Maximum Output
Answer: attribute: maximum output
value: None
source: None