Overview
4RXFK is a Li-polymer laptop battery listed for Dell equipment, including Dell XPS 14-L421X Ultrabook, 14Z-L421X and L421X. The source specifies 14.8V and 69Wh capacity with Li-polymer chemistry. This listing identifies the product as a source-referenced battery rather than adding claims about use, lifespan, output or condition. The listed color is Black. Compare the original battery label with the model, part numbers and compatible codes below before selecting a replacement.
Specs
| Specification | Standard Model |
|---|---|
| Product / battery model | 4RXFK |
| Voltage | 14.8V |
| Capacity | 69Wh |
| Battery type | Li-polymer |
| Color | Black |
Parts
These replace references are retained from the online source. Compare the installed label with the list; a blank list means no replace part numbers were supplied.
Part numbers are identifiers, not electrical ratings. Check letters, digits and punctuation as printed; the source order is retained for direct fit checking.
- 4RXFK
- 04RXFK
- C1JKH
- FFK56
Models
These complete compatibility entries retain the source device families, series names and model codes for fit checking, not additional specifications.
Compare the device label with the relevant manufacturer, family and exact code; a listed series does not add unlisted devices.
- For DELL XPS 14-L421X Ultrabook Series
- For DELL XPS 14Z-L421X
- For DELL XPS L421X
- P30G
- P30G001
FAQ
Which XPS families are listed?
The source lists Dell XPS 14-L421X Ultrabook Series, Dell XPS 14Z-L421X and Dell XPS L421X, followed by P30G and P30G001 model codes.
Which alternate numbers appear?
The replace-part section retains 4RXFK, 04RXFK, C1JKH and FFK56.
What is the stated rating?
For battery model 4RXFK, the source lists 14.8V and 69Wh, with Li-polymer chemistry and Black listed as the color.
For a precise check, use the product model, electrical values and the exact device entry together; do not infer a different model or rating from a similar-looking reference. The source sections are intentionally kept separate so each identifier can be checked against the original equipment label before a final selection.
Note:
This is not a complete list or inclusion of all compatible laptop models. You can open the back of your laptop to check the original battery model. If you have any compatibility questions, please contact us online.The casing is made of durable materials, the mainboard adopts advanced technology, and the battery core is produced with high-quality raw materials to ensure that it will not be damaged after long-term use.
Our products are equipped with multiple protection technologies such as overvoltage, overcurrent, and overcharge to effectively protect the safety of batteries and equipment.
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Q&A
Quick FAQ:Laptop Battery Care & Troubleshooting
- What Should I Know Before Buying a Laptop Battery Replacement?A: Before buying a laptop battery replacement, confirm your laptop’s exact model number and the part number printed on the original battery. Check the battery voltage, connector, physical dimensions, and compatibility list. Do not choose a battery based on appearance alone, because similar laptop models may use different batteries. Review the seller’s warranty, return policy, and product specifications before ordering.
- How Do I Find a Compatible Laptop Battery for My Device?A: To find a compatible laptop battery, identify your laptop’s full model number and the part number on the original battery. Compare these details with the replacement battery’s compatibility list and specifications, including voltage, connector type, and dimensions. If you are unsure, contact customer support with your laptop model and original battery part number before placing an order.
- Can I leave my laptop plugged in 24/7?Yes, the built-in TI chip prevents overcharging. Tip: To prevent long-term cell swelling, unplug and drain the battery to 40% twice a month.
- Why Is My Laptop Battery Not Charging?A: A laptop battery may not charge because of a faulty AC adapter, damaged charging port, loose connection, temperature protection, battery-health settings, or a worn-out battery. Confirm that you are using a compatible charger and inspect the cable and port for visible damage. Restart the laptop and review the manufacturer’s battery or charging settings. If the battery becomes unusually hot, swollen, or damaged, stop using it and seek professional assistance.
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Are BatteryMall Laptop Batteries Reliable?BatteryMall laptop batteries are designed with safety and reliability in mind. All batteries feature built-in IC protection against short-circuits, over-voltage, and overheating, helping protect the battery during normal use. They are also CE, FCC, and RoHS certified. For the best experience, choose a compatible laptop battery that matches your exact laptop model and original battery part number, and follow the installation and care instructions. BatteryMall also provides a 1-year warranty on KingSener batteries purchased from BatteryMall; see the Product Warranty page for details.