Product spec:

Battery cell:Lithium polymer

Power capacity:18000MAH @5V

Rated input: DC19V,Max 3500MA

Rated output: DC5-20V,Max3500MA

Recharge time: ~4 hours

Work time for laptop:more then 6 hours

Operating Temperature: 32-113℉

Size:18( L ) x 110( W ) x20 ( H ) mm.

Weight: 515g.

Rechargeable up to 500 times.

Works with any laptop.

Replace batteries and AC adapters.

Patented powerSafe(TM) technology.

Battery cell activation guarantee.

Charges three devices at once.

Precharged and ready to use.

Smart LED battery check light.

Charge & Temperature circuit protection.

Full charge auto shut-off.

Charges and discharges at the same time.