Your order will be dispatched within 48 hours.
⚡️ Reliability and security
Battery Dell 312-1390 is a high-quality replacement for your original battery, which meets all technical requirements for reliability and security.
⚡️ Safety and conformity certificates
Battery Dell 312-1390 has CE, FCC and ROHS certificates, and complies with all requirements for safety applicable within the territory of the EU member states.
+Our batteries are 100% WITH CE-/FCC-/RoHS-Certified for safety
+We only uses high quality materials and grade A battery cells to ensure true capacity and more recharge cycles.
+Thorough, comprehensive testing – each battery cell is tested for correct capacity and to ensure all safety requirements are met - all before installation.
Dell Inspiron 14 Series
Dell Inspiron 14-3421 Series
Dell Inspiron 14-3437 Series
Dell Inspiron 14-5421 Series
Dell Inspiron 14-N3421 Series
Dell Inspiron 14-N5421 Series
Dell Inspiron 14R Series
Dell Inspiron 14R-3421 Series
Dell Inspiron 14R-5437 Series
Dell Inspiron 15 Series
Dell Inspiron 15-3521 Series
Dell Inspiron 15-3537 Series
Dell Inspiron 15R Series
Dell Inspiron 15R-5521 Series
Dell Inspiron 15R-5537 Series
Dell Inspiron 15R-N3521 Series
Dell Inspiron 15R-N5521 Series
Dell Inspiron 15R-N5537 Series
Dell Inspiron 17 Series
Dell Inspiron 17-3721 Series
Dell Inspiron 17-3737 Series
Dell Inspiron 17R Series
Dell Inspiron 17R-5737 Series
Dell Inspiron 17R-N3721 Series
Dell Inspiron 17R-N3737 Series
Dell Inspiron 17R-N5721 Series
Dell Inspiron 17R-N5737 Series
Dell Latitude 14 3000 Series
Dell Latitude 15 3000 Series
Dell Latitude 3440 Series
Dell Latitude 3540 Series
Dell Latitude E3440 Series
Dell Latitude E3540 Series
Dell Vostro 2421 Series
Dell Vostro 2521 Series
Tags:Dell 312-1390,Dell 312-1390 battery,Dell 312-1390 Laptop Battery,Dell 312-1390 Batteries,replacement battery for Dell 312-1390,Dell Inspiron 3421 5421 15-3521 5521 3721.
Free Shipping on All Products
All orders placed for Standard Shipping on all stock items will be shipped within 1 - 2 business days.
Estimated Delivery Time:7 - 15 Business Days
It is very easy for you to check the status of your order and locate the package during transit, as an email with a tracking number will be sent to your email address after your order has been shipped out. Tracking number will be emailed to buyer once your ordered item is shipped out.
Attention: Priority mail will be used for all PO Box shipping addresses ,But All APO's and military addresses do not apply here. Please use standard shipping for these. Thank you.
1.Make sure the laptop is unplugged and turned off, and that the battery has cooled.
2.Flip the laptop upside down. Push the battery latch to the left "unlock" position. While holding the latch in this position, slide the battery out of the computer.
3.Look for the serial number that is printed on the label on the back of the battery. The serial number will be a combination of some letters and numbers that more conspicuous.
4.For you convenience, please refer to the pictures below to see an example for a A32-K93 part number:
1.Open the laptop and check the area near the keyboard first. Manufacturers commonly print the computer model (such as Aspire 4736G for a Acer computer) on or near the keyboard.
Please note : High capacity batteries with the bigger size shape, and them will extend out about 1 inch from the bottom / side of the laptop.