Power conversion rate = actual output power ÷ battery nominal power, and the lost power will become heat and internal resistance consumption, which directly determines the daily use experience.
1. Actual charging times (the most intuitive experience)
High conversion rate (85%~95%): the nominal capacity is practical, and it can give Wally to mobile phones and tablets many times as expected.
Low conversion rate (less than 80%): the power is greatly reduced, and the actual charging times are obviously less, so it is easy to go out and not enough.
2. Charging speed and fast charging stability
High conversion rate: low power consumption, stable output power, no shift in fast charging gear, and smooth flash charging and fast charging.
Low conversion rate: high power loss, high-power fast charging is easy to slow down and jump gears, and fast charging becomes ordinary slow charging.
3. The fuselage heating and grip feel
All the lost electric energy is converted into heat, and the lower the conversion rate, the more serious the heat is.
High temperature not only burns your hands, but also burns your hands for a long time, so you dare not carry them around.
4. Equipment charging compatibility
The output voltage and current of high-efficiency conversion are stable, and charging interruption, repeated start and stop, and charging pop-up window error rarely occur.
The conversion efficiency is poor, the output fluctuates greatly, and it is easy to trigger the mobile phone protection mechanism, and the power is cut off for no reason in the middle.
5. Self power consumption and service life
High conversion internal resistance loss is small, idle self-discharge is slow, and the power will not drop too much after a few days.
Long-term low-efficiency heating accelerates the aging of batteries and shortens the overall service life of charging treasures.
6. Portable size and cost performance
With the same actual available power, the higher the conversion rate, the smaller and lighter the battery cell, and the easier it is to carry.
Inefficient products can only make up the nominal capacity by increasing their size, which is cumbersome and low in cost performance.
7. Low temperature/high temperature environment adaptation
The loss of high conversion circuit is small, the output attenuation is reduced in cold and hot environment, and the charging is still normal in outdoor and low temperature weather.
When the temperature of the inefficient model changes, the conversion rate drops further, and the charging efficiency greatly deteriorates.
Daily purchase reference interval
High-quality portable power supply: 88%~95%, with the best comprehensive experience.
Ordinary qualified payment: 80%~87%, which is enough for daily use.
Inferior models: less than 80%, fast power consumption, high fever and poor experience.
