Mobile phone charger can be roughly divided into travel charger (universal charge), Seat charger and maintenance type rechargeable, the general user contact is mainly the first two kinds.
And the market sells the most is the travel charger, travel charger form also has a variety, the common has the cheap duck egg type Micro Brigade charge, the ordinary desktop card type charger, with the LCD display high-grade desktop charger.
1, can charge the battery alone, can also directly charge the mobile phone.
2, so that the battery charging more balanced, reasonable, full.
3, its design has a special protection circuit, can prevent excessive battery charging, extend battery life.