笔记本电池，DELL。This battery is new. I baught it from an online store and it was shipped from China. Unfortunately, this battery does not fit my laptop Dell precision M5510. For now, it is not convenient to return the item back to vendor in China due to shipment restriction.

Used for model Dell XPS 15 9550-5187 etc. see details below

https://www.amazon.com/84Wh-4GVGH-Battery-Compatible-Precision/dp/B084MKF383