What voltage is used in battery charging via a usb?

Answer According to the Battery Charging Specification developed by the USB Implementers Forum, USB peripheral devices may draw from 0.8V to 4.0V when recharging batteries. USB OTG (On-the-Go) devices may... Read More »

Top Q&A For: What voltage is used in battery charging via a usb

What is the charging voltage for a 6-volt battery?

To avoid gassing voltage (an unwanted chemical reaction), limit how high the voltage can go. Generally, anything over 2.15 volts for each cell will charge a lead acid battery. To charge a 6-volt ba... Read More »

Slow Battery Charging Versus Fast Battery Charging?

Battery chargers come in a variety of sizes and charging rates. Some battery types, such as alkaline or carbon zinc, recharge poorly. For all rechargeable battery types, including lead acid and lit... Read More »

What is the correct voltage for charging cordless batteries?

Cordless tools use a variety of voltages depending on the power requirements of the device and number of batteries required. In the United States household current is typically 120 volts and must b... Read More »

Is leaving a laptop plugged in too long, when the battery is done charging, bad for the battery?

No its fine. There are a lot of rumors about things like this but they're not true. Your laptop battery can not be damaged from remaining on the charger after the charging process is complete.