Of course, it is best if you have the original direct charge, but there is no problem with universal charging. The output voltage of universal charge and direct charge is the same. The universal charge is suitable for batteries with a battery capacity of 250~3000mAh. Just look at the capacity of your battery, if the large charge time is longer; If the small charge time is shorter. Note: About 20 to 30 minutes after charging the end of the charge, so that the battery can be full, but not overcharged. There is no effect on the battery.