推荐回答（5个）
1、对于这个问题的话其实没有什么办法！psp充电还是要用psp专用直冲才能冲的正好！USB充电插在前端是会显示电力供应不足。但是我插在后面就不会那样显示！其实这个原因也是因电脑而议的！有的电脑插前端插后端都不会显示电力供应不足！
2、关于充电快充满时拔掉再充电就不充电的问题的解决方案！一次性充4-5小时，直到充电橘黄灯灭掉就说明充满了！（是在用专用直冲的情况下）USB不建议充电，USB充电不能在待机状态下充电。边充电边消耗电那是充不满的就像你说的那个状况，其实此时还有几十毫安没充上！
3、追加回答：如果你没有psp专用充电器可以去买一个！去索尼psp专卖店购买，价格25元左右！（购买psp时盒内附加有专用充电线！那就是你丢了或坏了）
这可能有很多原因，
1是USB的前置接口本身就存在很多问题，一般在装机的时候前置USB接口由于装机人员的水平差异存在不同程度的接触不良问题；
2.用的USB线的问题，原装的PSP的USB连接线是能保证正常充电的，这点毋庸置疑。有一些高仿的USB连接线或者普通的USB线，即使是连上电脑，电源提示灯开始闪烁，已经显示正在充电了，实际上根本就没有在充电，到最后反而会因为耗电而把剩余电量用完；
3.操作原因，因为充电时本身PSP的电已经不够了，无法正常开机的时候，是用不了USB充电模式的，只能老老实实的用充电器；
4.最后一点就是USB充电快充满或是充满的时候，电源提示是不会闪烁的，这个时候电源提示灯有可能是橙色的也可能已经变绿了。其实是因为PSP在电池快满或已经满的时候就默认认为电量充足，不会在闪烁了。这是因为大部分的电池时间永久了存在一个“记忆”，也就是PSP所认为的误差，这少许误差电量是PSP正常电量之外允许的，不算做是BUG。
1第一个问题是电脑前端usb接口供电不足的问题。不是psp的问题
2用usb给充电时电流是通过psp的主板充电的，会冲过头，而用充电器则是直接给电池冲电(当电量达到一定程度是会自动停止充电防止锁电，是一种保护机制)，用usb充电时不稳定小概率会变砖
1.是因为你的电脑机箱电源，电压供电不足。
2.是因为电池本身有记忆体，需在用光剩余电量后，才能充电。最好是用直冲也就是随机电源
USB充电功率十分低，对电池不好。一般不用太期待电脑的充电。
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