Dell Latitude D820 D830 D531 Precision M65 Replacement Battery, Compatible part number: 312-0393,312-0394,312-0402,451-10308,451-10309,451-10326,451-10327, DF192,YD623,YD626,312-0537, 310-9122, GX047 ,CF623, YD623, CF704, CF711, 312-0394, XD735, XD736, YD624, DF230, DF249, FF231, FF232, 312-0402, D739, 0MM160, 312-0538, MM165, 312-0538, 310-9123. The DELL replacement laptop battery is made using the highest quality cells available and utilize all of the proper logic boards, thermal protectors, thermistors and circuit breakers to ensure the highest levels of battery safety, reliability and efficiency,100% Original Manufacturer Compatible; also having the products liability insurance to ensure the quality of our batteries, you can have completed confidence on our products and rest assured to purchase with us!
[2.Answer]: 1, Heat Resistant plastic shell with excellent abrasion resistance. 2, High Stability, high capacity bak cell. 3, Protection board with good stability and compatibility. 4. All of our batteries comply with ROHS and CE quality testing standards. 5, AGPtek is our Trade Mark, We specializes in Laptop Battery from 2001. 6.We promise 1 year Warranty and 45 day money back, and ship item within 2 business day from New York!