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To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Features
- Compatibility & Fit Models - Ideal replacement battery for specific Dell series: Latitude 14 5420, Latitude 15 5520, Precision 15 3560, and P137G (P137G001), P104F (P104F001/P104F002) models. Works with part numbers: RJ40G M3KCN 75X16 WY9DX 1K2CF WK3F1 01K2CF 075X16 0WK3F1 0M3KCN 005R42 M033W. Key Note: Latitude 5420/5520, Precision 15 3560 has two battery versions (RJ40G-63Wh & WY9DX-42Wh) please confirm your original battery model before purchase.
- Reliable Core Specifications & Brand-New Quality - 100% brand-new battery with 4-cell design, featuring 15.2V voltage and 63Wh/3941mAh capacity for stable, long-lasting power. Sleek black appearance matches your Dell laptops original design seamlessly, ensuring a consistent aesthetic.
- Practical Usage Tips for Optimal Performance - Initial installation guidance: If the new battery is not recognized, reinstall and ensure the interface is fully connected. To activate optimal performance, discharge the battery to 10-20% (do NOT drain to 0%), then charge and cycle 3-4 times this helps maximize battery life and efficiency.
- Stable Power for All Scenarios - Engineered to deliver consistent power output, whether youre working from home, attending meetings, or traveling. The 63Wh capacity provides reliable runtime to support your daily tasks, avoiding unexpected shutdowns and keeping your workflow uninterrupted.
Description
What do I need to be aware of when I receive a new laptop battery? Check appearance, model, manual. Do 5-6 full charge-discharge cycles to activate. Store long-term at 50%-60% in cool dry place; check every 2-3 months & recharge if needed. These steps extend battery life & reliability. What should I do if laptop won't boot up after installing a new battery? 1. Check battery seated & contacts clean. 2. Run laptop on charger alone (battery out). 3. If charger works, charge new battery 30 mins then boot with battery. 4. Reset BIOS/EC (hold power 30s). 5. Reinstall old battery to verify laptop hardware. How should I do if the battery is not recognised? Update BIOS to latest version. Power off, disconnect battery (and adapter), hold power button 20s, reconnect battery and adapter, reboot. If still not recognised, reseat battery and clean contacts. What should I do if the battery expands? 1. Power off & unplug laptop. 2. Do not charge or use. 3. In ventilated area, remove swollen battery carefully, avoid pressing or puncturing. What can you do if you are not satisfied with the battery? Please use Amazon's messaging system with your order details. We are committed to your satisfaction and will do our best to help resolve any issue. WY9DX Battery(click) RJ40G Battery(click) XVJNP Battery(click) GRWKG Battery(click) Committed to providing customers with various high-quality batteries, and can help you easily solve the problem. ZTHY is a professional laptop battery, camera battery and all kinds of chargers manufacture. We are committed to providing our partners one-stop valuable power charging solution. A professional manufacturer with a strong product range and Industry chains, to creating the best products which can perfectly fit your devices. Welcome to ZTHY Store！ Good battery replacement for your device 1, You need to turn off your laptop and disconnect the power. 2, Disconnect the connection between the old battery and the motherboard to avoid unnecessary damage caused by disassembling the battery. Then unscrew the old battery screws one by one and carefully save each screw. 3, Remove the old battery, carefully install the new battery on the battery case, screw in the screw, and connect the wiring of the new battery. 4, If you don't understand the above steps, you can search for the video about laptop battery installation on YouTube. Maybe it will help you. 1. Discharge the new battery use to 10%(not to 0%) and then charge to 95%, and cycle 3-4 times. 2. Do not disassemble, crush or puncture. Do not dispose of in fire or water. 3. If you remove the battery for a long time, charge more than 80% at least one time within one month. 4. Don't connect the adapter for a long time while using the battery. It may damage the battery. 5. When using the battery, care should be taken to prevent exposure and moisture. 1. Could be caused by battery loss. Please re-install the battery and make sure that the battery cable and the motherboard interface are tightly inserted. 2. Maybe due to conductive material damage which the laptop motherboard and battery anode and cathode contact position, you can try to confirm it with your original battery. 3. Check whether the battery drive is in normal condition, if not, download the corresponding driver software to update. 1.Turn off the laptop. 2.Unplug AC power. 3.Remove the battery. 4.Replace AC power. 5.Turn on laptop,allow OS to boot. 6.Once logged in to the machine,perform a normal shut donw. 7.Unplug AC power. 8.Replace battery. 1, Change your laptop power plan settings, and choose the power saver plan. Then Change advanced power settings, and scroll down to find Processor power management. Click the On-battery option and reduce the processor state to 20%. 2, Always keep your laptop neat and clean. The dust easily enters the hardware through the vents which are meant to release the heat generated from various computer components. 3, Close Wi-Fi, Bluetooth, and other settings. This can help your computer save precious battery life.
Number of Batteries: 1 A batteries required.
Brand: ZTHY
Battery Cell Composition: Lithium Ion
Battery Capacity: 3941 milliamp_hours
Recommended Uses For Product: Replacement for Dell Latitude 14 5420 Series, Dell Latitude 15 5520 Series, Dell Precision 15 3560 Series, Dell P137G P137G001 P104F P104F001 P104F002 Laptop See more
Number of Batteries: 1 A batteries required.
Brand: ZTHY
Model Number: RJ40G
Model Name: RJ40G
Manufacturer: Huizhou Aonaxuan Electronic Technology Co.,LTD
Warranty Description: 12 months
Battery Cell Type: Lithium Ion
Battery Capacity: 3941 milliamp_hours
Voltage: 15.2 volts
Reusability: Rechargeable
Compatible Phone Models: RJ40G M3KCN 75X16 WY9DX 1K2CF WK3F1 01K2CF 075X16 0WK3F1 0M3KCN 005R42 M033W
Unit Count: 1 Count
Battery Weight: 200 g
Item Dimensions: 9.61 x 4.02 x 0.24 inches
Antenna Location: Replacement for Dell Latitude 14 5420 Series, Dell Latitude 15 5520 Series, Dell Precision 15 3560 Series, Dell P137G P137G001 P104F P104F001 P104F002 Laptop
Frequently asked questions
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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