Note: High-performance battery with a wider design. Many notebook batteries from this manufacturer are identical in construction, meaning they are 100% compatible. Therefore, if you did not receive the exact original number you ordered, it may be a compatible battery with a different original number that is identical in construction. It does not differ in functional and quality features from the model you actually ordered. The item mentioned above is a high-quality battery for your DELL LATITUDE E6440. It is ideal as a replacement battery for your existing or defective DELL LATITUDE E6440 battery. It can also serve as an additional spare battery for on-the-go use. Handling and charging are as usual straightforward with the standard power supply/charger. A high level of safety is provided by the protection electronics against overcharging and short circuits. The use of high-quality cells allows for a greater number of charge-discharge cycles, resulting in a longer lifespan for your new DELL LATITUDE E6440 battery. Quality is our top priority. This means all batteries are new and unused. Our own quality assurance ensures a high quality standard. Note: Unless we explicitly state that this is an original product, we supply a compatible product. This means it is by no means an original product from the manufacturer and is therefore not produced or recommended by them. All brand and product names belong to their respective owners and are used solely for compatibility description.