Lizone Extra Pro 40000mAh Portable External Battery Charger for HP Pavilion 14 15 17 X2 x360 Split x2 Slatebook HP Envy 14 15 17 Envy x2 Spectre x360, Chromebook, Streambook, Laptop Power Bank Charge HP Pavilion 14 inch approach 2 times, Pavilion 15 inch approach 1.6 times, Pavilion 17 inch 1.2 times; iPad Mini 1 approach 5 times; iPhone approach 15 times; Samsung Galaxy S4 approach 10 times. Highest efficiency energy efficiency rate 10% above the previous generation. No expense spared constructed with grade A Samsung cells and premium chips, up 600 recharge cycles over the life of the battery, Aluminum Unibody, 18 Months Warranty. Lizone Technology enables full speed laptop DC port (up to 4.5A 90W) and USB port charge (up to 2.1A) and universal compatibility. Highest efficiency energy efficiency rate 10% above the previous generation. Charge with speed full speed charge multiple devices simultaneously with the 6.6A total output, Broadly compatible with both USB charging port and a DC Output laptop port, charge a wider range of tech devices. Extra Pro Laptop External Battery Power Bank Charger for HP Split 13 x2 13-G 13T-G 13T-M HP Envy 4 6 Sleekbook Ultrabook Envy 14 17 HP Pavilion 14 14-B 14-C 14-E 14-V 14-G 15 15-G 15-E 15-P 15 Sleekbook17 17-E 17-G HP DV2 DV3 DV4 DV5 DV6 DV7 DV8 DV4T DV5T DV6T DV7T DV8T HP DV1000 DV2000 DV3000 DV4000 DV5000 DV6000 DV7000 DV9000 HP Mini 2133 2140 5101 2533t  HP EliteBook 2530p 2730p 6930p 8530p 8530w 8730wCompaq Presario CQ35 CQ40 CQ45 CQ50 CQ60 CQ70 Series Laptop Notebook Extra Pro Laptop External Battery Power Bank Charger for HP Compaq Notebook PC 2230s 2510p 2710p 6510b 6515b 6530b 6535b 6710b 6715b 6720s 6720t 6730b 6730s 6735b 6735s 6820s 6830s 6910p 8510p 8510w 8710p 8710w nc2400 nc4200 nc4400 nc6120 nc6140 nc6220 nc6230 nc6320 nc6400 nc8230 nc8430 nw8240 nw8440 nx6110 nx6115 nx6120 nx6125 nx6130 nx6310 nx6315 nx6320 nx6325 nx7300 nx7400 nx9420 tc4200 tc4400 Series Laptop Notebook (Replace 65W 90W HP Compaq Original Ac Adapter and battery)