The standby time of the walkie-talkie directly affects its use time. As a communication tool, we certainly hope that the longer it works, the better. So, do you know how to calculate the standby time of the walkie-talkie?
First, let's understand three key words, they are battery capacity, standby current of walkie-talkie, and receiving current of walkie-talkie.
The battery capacity of the walkie-talkie refers to the capacity of the battery. Generally, it can be 1300mAh or 1500mAh, and the larger ones can also be 1800mAh to 20001800mAh, or even larger.
What is the standby current of the walkie-talkie?
Standby current refers to the current of the walkie-talkie under no signal, usually an average value, generally 20mA-60mAh, that is, the average value is 40mAh.
What is the receiving current of the walkie-talkie?
It depends on the volume of the walkie-talkie, generally 0.5W is the best volume, and the power consumption is about 70mAh-80mAh + the machine current 60mAh is about 140mAh.
battery capacity-of-the-walkie-talkie
①Assuming that the walkie-talkie is not working (no transmission or reception), the standby time of the walkie-talkie is equal to "battery capacity divided by standby current = standby time". Example: 1500mAh battery divided by 40mAh standby current ≈ 37.5 hours.
②Assuming that the walkie-talkie has no transmission, always standby, and sometimes receives (10 minutes to receive a 1 minute signal), the standby time of the walkie-talkie is equal to "battery capacity divided by (9/10*40mAh+1/10*140mAh)". Example: 1500mAh battery divided by (9/10*40mAh+1/10*140mAh) standby receiving time≈30 hours.
③If you add transmission, assuming a 4W Radio, working current is 1.4A (1400mAh), speaking times per hour, each time is 10 seconds for one minute. Then the working time of the battery is: battery capacity 1500/(1/60*1400mAh+6/60*140mAh+53/60*40mAh) working time ≈ 20.6 hours.
In this way, you can calculate the standby time of the walkie-talkie in your hand, or use it as a parameter to judge the quality of the walkie-talkie.