Revive your laptop with a brand new Dell Latitude Type KJ321 battery. This battery is compatible with the Dell Latitude E5420, E5420m, E5430, E5520, E5520m, E5530, E6420, E6420n, E6440, E6520, E6520n and E6540 models. Additional compatible Dell laptop models and battery part numbers are listed below.

This 6 cell Dell Latitude KJ321 battery will last up to 3 hours on a single charge. This battery is rated 5225 mAh. The higher the mAh (milli-amp hour), the longer the battery will go before having to be recharged. This battery will still be compatible if your original battery has a lower voltage, mAh or Wh rating. It just means it will last longer! If you want an even longer run battery, go to our extended run 9 cell Dell Latitude battery page.

We use only the highest quality lithium-ion battery cells and components from Samsung. Higher quality lithium-ion batteries charge faster, have a longer runtime and longer life. We are so confident in our quality that we back each battery with a 2 year warranty and 30 day guarantee.

Laptop Battery Express is family-owned and operated business located in the heartland of the US. Our business is built on honesty, integrity and trust. We pride ourselves on delivering quality products at reasonable prices. Our friendly and knowledgable customer support is here to help if you have any battery or compatibility questions.