Has your battery been running slow or does your battery not last long without the charger? Chances are you might need a new battery. Revive your laptop with a new replacement extended run Dell Precision Mobile M4600 battery.

This higher capacity battery will give you an additional 2 hours of run time from your original battery and up to 5 hours of total run time. This battery is compatible with the Dell Precision Mobile M4600, M6600, M4700 and M6700 models. Additional compatible laptop models and Dell battery part numbers are listed below. Each battery is individually tested and is backed by a 2 year warranty.

This 9 cell Dell Precision Mobile battery is rated 7800 mAh, one of the highest rated li-ion batteries in its class. The higher the mAh (milli-amp hour), the longer the battery will last before having to be charged. This higher capacity battery will still be compatible if it has a higher mAh or voltage rating than your original battery. It just means it will last longer!

Laptop Battery Express is a US-based, family-owned and operated business built on honesty, integrity and trust. We pride ourselves on delivering the highest quality laptop batteries and accessories. Our friendly and knowledgeable customer support is here to help should you have any power or compatibility questions. This extended run Dell M4600 M6600 M4700 M6700 battery is manufactured to OEM specifications. This long run battery will run up to 5 hours without a charge depending on power usage.

Not all computer batteries have the same capacity and run times. The higher capacity battery cells inside this cartridge have an energy capacity of 7800 mAh. These are the highest capacity Li-ion batteries on the market today and superior to batteries rated at 6600 & 7200 mAh. This battery will deliver 20% more run time than cheaper 9 cell versions and 77% more run time than cheaper 6 cell versions of this battery. If you prefer the 6 cell battery, click here for the standard 6 cell battery Dell laptop.