Looking for Answers about Lenmar - Lithium-Ion Battery for Dell Inspiron 1440 and 1750 Series Laptops?

Thank you for your inquiry. The Dell Inspiron 1440 and 1750 Series Laptop is a 6-cell product. If you have any further questions, please let us know.

Battery life varies considerably depending on the model of laptop (many batteries fit many different models), configuration, the actual applications you are running, and the power management features you had selected when you first set up your laptop. The best way to compare a new battery is to compare it to your old battery by the mAh or Wh, which indicate how powerful the capacity of a battery is. Even though this doesn’t give you a run time at least you know if you are getting a battery that is comparable.

Hi thank you for your inquiry. We suggest that your replacement battery voltage is not higher than your original battery. Regarding replacement batteries you should keep the voltage the same as the mAh may vary. If you have any further questions, please feel free to ask!

Hello and thank you for your inquiry. Replacement battery model #LBZ316D, replaces original Dell batteries: J399N, J414N, K450N 0F965N, 0F972N, and 312-0940. If you have any further questions, please let us know!

Hello and thank you for your inquiry. All of Lenmar batteries are made with the same strict standards as OEM (Original Equipment Manufacturer). This battery is rated exactly as your Dell battery. However we suggest that your replacement battery voltage is not higher than your original battery. Regarding replacement batteries you should keep the voltage the same as the mAh may vary. If you have any further questions, please feel free to ask!

Hello and thank you for your inquiry. Model #LBZ316D that was attached is not the correct battery for your device. However Model #LBZ321D is the correct replacement battery for Dell Studio 1440. If you have any further questions, please let us know!

Hello! Thank you for your inquiry. All of Lenmar’s batteries are made with the same strict standards as the OEM (Original Equipment Manufacturer) batteries. This battery is rated exactly as the Dell battery; so no a Lenmar replacement battery will not harm your device. However, according to the model # you have provided, we do not carry any compatible products for that device. Please confirm the model # of your laptop so that I may better assist you. Thank you!

Hello and thank you for your inquiry. Yes replacement battery model #LBZ316D is compatible with Dell Inspiron 1440. If you have any further questions, please let us know!

Hello! Thank you for your inquiry. BestBuy has a 30 day return policy. If you are within 30 days from your purchase date, you may return the unit and receive a refund. If you have any further questions, please feel free to contact us. Thank you!

Hello! Thank you for your inquiry. Replacement battery model #LBZ316D is compatible with Dell Inspiron 1440. This replacement is rated as a 14.4V / 2600mAh 4 cell battery. You may compare the mAh rating of the replacement battery to the mAh rating of your original battery to know if you are purchasing a battery that has more, the same, or lease runtime than your original battery. If you have any further questions, please let us know. Thank you!