The L11421-421 battery is a compatible replacement for laptops, with 11.4V and a capacity of 3400 mAh. Designed with 3 lithium polymer cells, it is compatible with part numbers L11421-422, L11421-542, and L11421-545. It is a new product, with a 3-year warranty and shipping from Spain in 24-48 h.
L11421-421
L11421-421 Laptop Battery - 11.4V 3400mAh 3 Cells
Compatible replacement battery, new and with 3 years warranty.
Restore your laptop's original battery life with 3400 milliampere-hours.
Stable voltage output for safe and efficient equipment performance.
Lithium polymer cells for greater durability and a lighter design.
Integrated protection against overcharge and overdischarge for enhanced safety.
The replacement battery with reference L11421-421 is the ideal solution to restore battery life in laptops that require this component. Designed with lithium polymer (Li-Poly) technology, this battery features 3 cells that provide a stable voltage of 11.4V and a capacity of 3400 mAh, ensuring reliable and long-lasting performance.
It incorporates internal protection circuits against overcharge and overdischarge, guaranteeing the safety of both the battery and the equipment. This component is completely new and has been verified by our technical service to ensure its maximum reliability.
To ensure 100% compatibility, it is essential that the part number of your original battery matches L11421-421 or any of the equivalent part numbers listed on this page. Correct identification is crucial for the safe operation of your computer.
This product is a high-quality compatible battery, verified by our technical service to meet the performance and safety standards of the original component. It is not a product manufactured by the same laptop manufacturer.
For technical repair services and individual users who need to replace their laptop's depleted battery and restore its battery life.
| Capacity | 3400 mAh |
|---|---|
| Voltage | 11.4 V |
| Number of cells | 3 |
|---|---|
| Cell technology | Lithium Polymer (Li-Poly) |
| Color | Black |
| Overcharge protection | Yes |
|---|---|
| Overdischarge protection | Yes |
| Condition | New |
Always check the part number printed on your original part before ordering; if in doubt, contact us with the exact model of your device.
The safest way to confirm compatibility is to remove the battery from your laptop and check the part number printed on it. If it matches L11421-421 or any of the other compatible PNs listed on the product page, then it is the correct one for your device.
The difficulty of installation depends on your laptop model. In many modern models, the battery is internal and requires opening the bottom case of the device. Generally, you will need a set of precision screwdrivers and possibly a plastic pick to avoid damaging the casing.
The battery has a 3-year warranty for private customers and 1 year for professionals. If you are not satisfied or it is not compatible, you have 14 days to return it. We offer free collection in Spain and Portugal to facilitate the process.
All our shipments are made from Spain. If you place your order before 16:00 (Fridays, 15:00) on a working day, it will be prepared the same day. Delivery in Spain and Portugal usually takes between 24 and 48 working hours. For other EU countries, the timeframe is 2 to 5 days.
Data sheet
The product arrived quickly and is already working according to the instructions.
Good product
5 stars