Dtk Laptop Notebook Computer Battery for Samsung Rv408 Rv508 Rv411 Rv415 Rv511 Rv515 Rv510 R420 R428 R430 R439 R429 R440 R505 R522 R523 R466 R462 463 R464 R465 P467 R468 R470 R478 R480 Battery type: Li-ion; Capacity: 4400mAh; Cells: 6-cell; Voltage: 11.1V R428, R429, R430, R439, R460, R462, R463, R464, R465, R466, R467, R468, R470, R478, R480, R519, R522, R530, R580, R620, R700, R710, R718, R720, R728, R780, RV411, RV420, RV510, RC410, RC420, RC510, RC520, RC530, P428, P467, Q320 Series Replacement Laptop Battery AA-PB9NC5B, AA-PB9NC6W, AA-PB9NC6B, AA-PB9NS6B, AA-PB9NS6W, AA-PL9NC2B, AA-PL9NC6B, AA-PL9NC6W All DTK products are Certified by CE, FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Operation time for standard batteries(6-cell, 4400mah): Around 2 hours, the actual operation time will depend on how much electricity is required by the device and how you use it. 24 x 7 email support, 12-month hassle-free warranty. overheating protection overcurrent protection overvoltage protection overcharge protection over discharge protection short circuit protection