Compatible with the follow laptops: HP Compaq 2710 Tablet PC, HP Compaq 2710p Tablet, Ultra-slim Series. Compatible with the follow part numbers: HSTNN-CB45, HSTNN-OB45, HSTNN-W26C, 436426-351, NBP6B17B1, 436426-311, NBP6B17, AH547AA, 454668-001, HSTNN-XB4X. We provide 1 year warranty for all products. All of our batteries comply with ROHS and CE quality testing standards. We have liability insurance coverage for any product damages up to $3,000,000 USD so you will feel at ease with buying from us. We understand the annoyances of dealing with defective products, thus we make sure to offer only the best products available. Order Today!