Konka M520 User Manual page 21

2.4.2 Tips on the Battery
Please don't leave the battery in environments where the temperature is
too high or too low as it will affect the service life of the battery and
decrease the standby time. . The service life of the battery is limited and
after you use it for a period of time, you will notice a significant decrease
in the standby and talk time. When you notice the decrease in the
battery's performance, we recommend that you replace the old battery
with the manufacturer's original battery so that you can continue
enjoying your mobile phone.
Note: Do not leave the battery connected to the battery charger for too
long a time (not more than 12 hours). Remove the battery as early as
possible after the battery is fully charged to prevent the battery from
getting damaged or dangerous situations from occurring.
2.4.3 Using the Travel Charger
You can use the travel adapter to charge the battery through the phone.
1. When you need to charge the battery, install the battery in the phone.
2. Connect the connector of the travel adapter to the input/output jack of
the phone.
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