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The RJ40G battery is a replacement for Dell laptops with 15.2V and 4140mAh capacity. It is compatible with 8 part numbers, including M033W and WY9DX, and models such as Dell Latitude 5520 and Precision 3560. New component, with a 3-year warranty and shipping from Spain in 24-48 h.
RJ40G
RJ40G Battery for Dell Laptop - 15.2V 4140mAh 4-Cell Li-Ion
New replacement component, with 3-year warranty and 24-48 h shipping.
Designed for Dell Precision 3560, Latitude 5420, and Latitude 5520 models, ensuring a perfect fit and function.
Operates at 15.2V with a capacity of 4140mAh (63Wh) to restore your laptop's original autonomy.
Equipped with 4 Lithium-Ion (Li-Ion) cells for stable performance and longer lifespan without memory effect.
Completely new replacement battery, checked in our technical service to guarantee its correct functioning.
The replacement battery with part number RJ40G is the ideal solution to restore the autonomy of Dell laptops. If your device no longer works without being connected to power or its duration has been reduced, this component offers reliable performance with its 15.2V voltage and 4140mAh (63Wh) capacity.
Manufactured with 4-cell Lithium-Ion (Li-Ion) technology, this battery ensures a prolonged lifecycle and stable performance without memory effect. It is a completely new component, verified by our technical service to guarantee easy installation and optimal operation from the first moment.
It is crucial to check compatibility before purchase. Make sure that the part number of your original battery matches RJ40G or one of its equivalents. This is the safest way to ensure that the replacement is correct for your device.
This battery is compatible with a wide range of Dell laptop part numbers and models. In addition to the main part number RJ40G, it is equivalent to references such as M033W, 1K2CF, and WY9DX. It is compatible with Dell Precision 3560, Latitude 5420, and Latitude 5520 models. Always consult the complete compatibility lists to confirm.
For technical services and private users who need to replace the internal battery of a compatible Dell laptop to restore its autonomy.
| Voltaje | 15.2 V |
|---|---|
| Capacidad | 4140 mAh |
| Energía | 63 Wh |
| Tecnología | Li-Ion |
| Número de celdas | 4 |
| Part Number Principal | RJ40G |
|---|---|
| Marca Compatible | Dell |
| Estado | New |
|---|---|
| Color | Black |
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 is to check the part number printed on your original battery. Turn off the laptop, disconnect it, and open the bottom cover. If the code is 'RJ40G' or one of the listed compatible part numbers (such as M033W or WY9DX), this battery is 100% compatible with your device.
Yes, it is highly recommended. After installing it, charge it to 100% without interruptions. Then, use the laptop until it is completely discharged and turns off. Finally, charge it back to 100% without using it. This cycle helps the system recognize the battery's real capacity.
The battery has a 3-year warranty for private customers and 1 year for professionals. You have 14 days to return it if it is not the correct one. You can send it on your own or request a home collection for €8.90 in Spain and Portugal, which will be deducted from the refund.
Shipping is from Spain. For orders in Spain and Portugal, delivery is within 24-48 business hours. For France, the timeframe is 48-72 hours, and for Germany, 48-96 hours. Orders placed before 16:00 (15:00 on Fridays) are prepared the same day.
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