Dr. Battery
Dr. Battery Y9N00 laptop battery 6300 mAh 7.4V Dell XPS 13 L321x L421x
Replacement Li-polymer battery delivering 6300 mAh at 7.4 V for Dell XPS 13 L321x and L421x ultrabooks with integrated over-charge, over-discharge, overheating and short-circuit protection
- TypeBattery
- CompatibilityDell XPS 13 (L321x) / Dell XPS 13 L321 / Dell XPS 13 L421X /
- Battery TypeLi-polymer
- Battery Voltage7.4V
- Battery Capacity6300 mAh
- FunctionNotebook
- Reliable power for Dell XPS 13 L321x and L421x series
- Extended runtime with 6300 mAh capacity and 7.4V output
- Safe operation via integrated over-charge, over-discharge, overheating, and short-circuit protection
- OEM-grade Li-polymer cells built for stable performance and long life
- Lightweight design at 0.4 kg with compact 8.0 x 1.5 x 0.8 cm dimensions
Dr. Battery Y9N00 6300 mAh replacement
This Dr. Battery Professional Series unit replaces the original Dell battery in XPS 13 L321x and L421x ultrabooks. It uses a 7.4 V lithium-polymer pack rated at 6300 mAh. Built-in circuitry guards against over-charge, over-discharge, overheating and short-circuit. The pack measures 8.0 x 1.5 x 0.8 cm and weighs 0.4 kg.
Owners of matching XPS 13 models needing a fresh
Buyers with a Dell XPS 13 L321x or L421x whose original part number is 077G21, 489XN or Y9N00 can install this unit directly. It is not for other Dell series, non-Dell laptops or devices that require a different voltage or connector. Confirm the part number and 7.4 V rating before ordering.
6300 mAh capacity for daily workloads
The 6300 mAh rating supplies typical office, browsing and media tasks through a full workday on a healthy charge. Runtime falls off under sustained heavy loads such as video rendering or gaming. The battery cannot exceed its rated capacity, so users needing multi-day autonomy should consider a higher-capacity alternative or carry a spare.
Highlights
- Reliable power for Dell XPS 13 L321x and L421x series
- Extended runtime with 6300 mAh capacity and 7.4V output
- Safe operation via integrated over-charge, over-discharge, overheating, and short-circuit protection
- OEM-grade Li-polymer cells built for stable performance and long life
- Lightweight design at 0.4 kg with compact 8.0 x 1.5 x 0.8 cm dimensions
Specifications
| Brand | DELL |
|---|---|
| Model | Dell XPS 13 L321x Series / Dell XPS 13 L421x Series |
| Part Number | DR-PRO-LDE269-A |
| Type | Battery |
| Compatibility | Dell XPS 13 (L321x) / Dell XPS 13 L321 / Dell XPS 13 L421X / Dell XPS 13 MLK / Dell XPS 13-4040SLV / Dell XPS 13-6928SLV / Dell XPS 13-L321X / Dell XPS 13R / Dell XPS 13Z / Dell XPS L321X |
| Battery Type | Li-polymer |
| Battery Voltage | 7.4V |
| Battery Capacity | 6300 mAh |
| Function | Notebook |
| Dimension | 8.0x1.5x0.8 |
| Weight | 0.4 |
Questions about this item
Which Dell XPS 13 models use the original part numbers 077G21, 489XN or Y9N00 that this battery replaces?
This battery replaces Dell original part numbers 077G21, 489XN and Y9N00 and is compatible with Dell XPS 13 L321x and L421x series laptops.
Will this 7.4 V Li-polymer pack fit the same internal bay as the factory battery in an XPS 13 L321x?
Yes, the pack measures 8.0 × 1.5 × 0.8 cm and weighs 0.4 kg, matching the original form factor for the L321x and L421x chassis.
After installation, how can I confirm the battery is recognised and reporting its full 6300 mAh capacity?
The system BIOS or Dell Power Manager will show the design capacity as 6300 mAh at 7.4 V and report normal charge and discharge cycles.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
Case Logic
Case Logic 3203990 briefcase for 15.6 in laptop with 10.1 in tablet pocket
$30.99
0.00037329BTC
In stock