Description
Product Overview
This is a genuine replacement Dell MR90Y 56Wh laptop battery. It is a brand new product with immediate shipping and free delivery.
Specifications
- Part Number: MR90Y
- Capacity: 56Wh
- Condition: Brand New
- Chemistry: Li-ion
Compatibility Information
Compatible Part Numbers (P/N)
This battery replaces the following Dell part numbers: 0K9XJR, 0MF69, 24DRM, 312-1390, 312-1392, 312-1433, 451-12104, 49VTP, 4DMNG, 68DTP, 6HY59, 6K73M, 6KP1N, 6XH00, 8TT5W, 9K1VP, DJ9W6, G019Y, G35K4, K9XJR, MK1R0, PVJ7J, V1YJ7, VR7HM, W6XNM, X29KD, XCMRD, YGMTN.
Compatible Laptop Models (Model)
This battery is compatible with these Dell laptop models: Inspiron 14 (3421), Inspiron 14 (3437), Inspiron 14 (3442), Inspiron 14 (3443), Inspiron 14R (5437), Inspiron 15 (3521), Inspiron 15 (3531), Inspiron 15 (3537), Inspiron 15R (5537), Inspiron 17 (3737), Inspiron 17 (5748), Inspiron 17R (5721), Inspiron 17R (5737), Inspiron M531R, Latitude 14 (3440), Latitude 3440, Latitude 3540.
Unsure About Compatibility?
The compatibility list for this battery is extensive. If your specific laptop model or battery part number is not listed above, please leave this information in the order notes during checkout. We will verify compatibility for you before shipping.
When Should You Replace Your Laptop Battery?
Consider replacing your battery if you notice any of the following signs:
| Symptom | Description |
|---|---|
| Short Battery Life | The laptop powers off much sooner than it used to, even after a full charge. |
| Swelling or Bulging | The battery pack appears physically swollen or causes the laptop case to bulge. |
| Failure to Charge | The battery does not charge when connected to the AC adapter, or the charge indicator flashes abnormally. |
| Incorrect Charge Reporting | The system reports a high charge percentage that drops rapidly or shuts down unexpectedly despite showing remaining charge. |
| Laptop Doesn’t Power On Without Adapter | The laptop only works when plugged in and immediately turns off when the AC adapter is disconnected. |
Estimated Battery Life
Below are conservative estimates for battery runtime with this 56Wh battery under different usage scenarios.
| Usage Scenario | Estimated Runtime |
|---|---|
| Light Use (Word Processing, Web Browsing) | 3 – 5 hours |
| Medium Use (Video Streaming, Multiple Applications) | 2 – 3.5 hours |
| Heavy Use (Gaming, Video Editing) | 1 – 2 hours |
Please Note: These are estimates for a new battery used with your existing laptop. Over time, system software updates and hardware aging can increase power consumption. Therefore, the runtime with this replacement battery may be less than the original battery’s performance when your laptop was brand new.
Shipping & Warranty
- Ships within one business day
- 30-day money-back guarantee
- 1-year warranty
- In stock, ready to ship
- Free shipping
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