7CJRC Laptop Battery for Dell Latitude 7470 7270 E7270 E7470 Series

7CJRC Laptop Battery for Dell Latitude 7470 7270 E7270 E7470 Series

Compatible Machine Models:
Fit for Dell Latitude 7470 7270 E7470 E7270 Series

Compatible Part Numbers:
7CJRC KNM09 0KNM09 21X15 021X15 TX283 0TX283
 

How do I charge my new battery?

1. For transport safety reasons, new batteries are usually not fully charged. When you receive the battery, please use the remaining energy in the battery until the laptop turns off. Then fully charge the battery and use all the power. Then fully charge it. Repeat the cycle three times to activate the battery.

2. If you store the battery for a long time, the battery requires three to four charge and discharge cycles to achieve maximum efficiency.

3. Sometimes when the battery is charged for the first time, the indicator on the device shows that the battery is fully charged after 10-15 minutes of charging. This is normal for "batteries", just remove the battery from the device, put it back in and charge it.

How to extend the battery life of a laptop?

1. Please charge the battery in time. Many of us like to charge when your laptop's battery is empty, which significantly shortens the battery life. Never discharge your laptop battery under 20% charge if possible.

2. The most important point is to fully discharge and charge the battery every month. The easiest method of discharging is to turn on the device until the battery is empty, and then fully charge it.

3. When you are not using the laptop, you should turn it off. The laptop never turns off, often in standby mode, the battery life of these laptops is often very low.

4. For laptops that often do not turn on, we should also charge the laptop about every half months. If the laptop does not turn on for a long time and does not work, the battery activity also decreases.

5. If you do not use the battery for more than a month, it is recommended to remove the battery from the device and store it in a dry and cool place.

 Install A New Battery:

1. You need to turn off your laptop and disconnect the power.

2. Remove the old battery, carefully install the new battery on the battery case, and connect the wiring of the new battery.

3. 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.

Laptop Maintenance Tips:

1. New battery: For use a new battery, you’d better try a few cycles of discharging to 5%. then charging up to 95%. So that it can be activated completely

2. Overuse: Do not always run out of a battery to 0%, this would make it damaged or usage life shortened

3. Charging sequence: when charging, first install the battery, then turn on the power, when fully charged, first cut off the power, then pull the power plug.

4. Long-term storage: Please store the unused battery fully charged.(Charge it once a month) Do not store at low power to prevent reduce the lifespan of a battery

5. Charger: Do not replace the laptop adapter casually. If the original adapter cannot be applied due to malfunction or damage, please replace the models, so as not to reduce the service life of the battery due to incompatibility.

PROTECTION DETAILS

• Overload protection
• Over-current protection
• Over-voltage protection
• High voltage protection
• Short circuit protection
• Over-temperature protection
• Easy & Quick Installation