Specification: Battery type: Li-ion Voltage: 11.1V (Compatible with 11.1V) Capacity: 5200mAh Cell: 6 Cells recharge cycles： 500 Operation time: Around 1.5-2.5 hours Compatible Models：( Ctrl + F for fast search ur laptop model) Dell Inspiron 14-3421 Series Dell Inspiron 14 Series Dell 14-3421 Series Dell 14-3437 Series Dell 14-5421 Series Dell 14-N3421 Series Dell 14-N5421 Series Dell 14R Series Dell 14R-3421 Series Dell Inspiron 15 Series Dell 15-3521 Series Dell 15-3537 Series Dell 15R-5521 Series Dell 17-3721 Series Dell 17R Series Dell 17R-5737 Series Dell 17R-N3721 Series Dell 17R-N3737 Series Dell 17R-N5721 Series Dell 17R-N5737 Series Dell 3421 Series Dell 3437 Series Dell N5521 Series Dell N5537 Series Dell N5721 Series Dell N5737 Series.
