Revive your laptop and get improved performance with a Dell N856P battery.

This N856P battery is compatible with the Dell Studio 1745, 1747, and 1749 laptop models and is compatible with the Dell U164P, 312-0186, and N856P battery part numbers. Additional Dell laptop models and battery part numbers are listed below.

This N856P battery will last approximately 2.5 hours on a single charge. It is rated 5200 mAh or 58 Whr. This is the highest rating available for a 6 cell battery pack. The higher the mAh (milli-amp hour) the longer your battery will run before it needs to be recharged again. This battery is still compatible if your original battery has a lower mAh rating.

We use the highest quality lithium-ion cells from Samsung and computer chips from Texas Instruments. Each battery is backed by a 2 year warranty and 30 day money back guarantee. We'll even recycle your old Dell battery for you.