Description
Product Overview
This Dell 8858X 48Wh battery is a genuine replacement part designed specifically for compatible Dell laptops. It delivers reliable power and performance for your mobile computing needs.
Specifications
- Part Number: Dell 8858X
- Capacity: 48Wh
- Chemistry: Lithium-Ion
- Condition: Brand New
Compatible Part Numbers (P/N)
This battery replaces the following Dell part numbers: 02P2MJ, 05VFW, 0M5Y0X, 0NRFFP, 0P6YD6, 0T54FJ, 2P2MJ, 2VYF5, 312-1163, 312-1164, 312-1324, 312-1325, 451-11694, 451-11695, 451-11947, 451-11960, 451-11961, 451-11977, 451-12135, 5CGM4, 5G67C, 88WR6, 911MD, 9KN44, CC6N8, DHT0W, FKYCH, HCJWT, M1Y7N, M5Y0X, M9H56, NH6K9, NHXVW, NRFFP, P6YD6, P8TC7, P9TJ0, PRRRF, R48V3, T54F3, T54FJ, TVMVN, X57F1, XV2VV
Compatible Models
This battery is compatible with these Dell laptop series: Inspiron 14R (5420), Inspiron 14R-SE (7420), Inspiron 15R (5520/5525), Inspiron 15R (7520), Inspiron 17R (5720), Inspiron 17R-SE (7720), Inspiron 7110-2144, Inspiron 7720, Inspiron M421R, Inspiron M521R, Inspiron N5420, Inspiron N5520, Inspiron N7520, Inspiron N7720, Latitude E5420/E5420m, Latitude E5430, Latitude E5520/E5520m, Latitude E5530, Latitude E6420/E6420 ATG/E6420 XFR, Latitude E6430/E6430 ATG, Latitude E6440, Latitude E6520/E6520n, Latitude E6530, Latitude E6540, Precision M2800, Vostro 3460, Vostro 3560
Note on Compatibility
The compatibility list above is not exhaustive. If you don’t see your specific model or part number listed, please leave your laptop model or current battery part number in the order notes during checkout. We will verify compatibility before shipping.
When to Replace Your Laptop Battery
| Situation | Description |
|---|---|
| Short Battery Life | Battery drains significantly faster than when new, lasting less than 1 hour |
| Swelling/Bulging | Battery case appears swollen or distorted |
| Not Charging | Battery won’t charge despite working charger |
| System Errors | Laptop shows “battery not detected” or similar errors |
| Overheating | Battery gets unusually hot during use or charging |
| Age | Battery is 2-3 years old with noticeable performance decline |
| Sudden Shutdown | Laptop turns off unexpectedly even with charge indicated |
Estimated Battery Life by Usage
| Usage Scenario | Estimated Runtime |
|---|---|
| Web Browsing & Email | 2-3 hours |
| Word Processing | 3-4 hours |
| Video Streaming | 1.5-2.5 hours |
| Gaming | 1-1.5 hours |
| Standby/Sleep Mode | 24+ hours |
Note: These are conservative estimates for a new battery in older hardware. Actual runtime may be shorter than when the laptop was new due to increased software demands and general system power consumption over time.
Shipping & Warranty
- Ships in 1 business day
- 30-day money back guarantee
- 1-year warranty
- In stock, ready to ship
- Free shipping
- Brand new product
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