USB to DC Cable This USB to DC Cable can be uesd with socket, power bank and any usb port as long as the voltage is correct for your device.Patent applied. No more frequent battery replacement because battery runs out, saving you more time and money. Thin Flat Cable Thin Flat Cable can make sure the battery cover close perfectly. Please check the output of your device before use.Do NOT charge these dummy batteries and do NOT use these dummy batteries with traditional battery in the same time. USING SCENE Warm Hint 1. This USB power supply cord does not come with volts. The output voltage of the product depends on the adapter being connected to. 2. Generally speaking, 2AA=3V, 3AA=4.5V, 4AA=6V, and the corresponding voltage adapter needs to be selected. 3. Due to the fact that the USB socket and most commonly used adapters are 5V1A, in view of this situation, 5V is right in that range where it should be suitable for any device that needs 3 or 4 batteries to operate. 4. For 5V USB socket, it is not recommended to use this product on 1AA and 2AA devices. MORE ITEMS USB to DC Power Cable Add to Cart AC Power Supply Adapter Add to Cart AC Power Supply Adapter Add to Cart AC Power Supply Adapter Add to Cart AC Power Supply Adapter Add to Cart AC Power Supply Adapter Add to Cart Adjustable AC Adapter Kit Buying Options Customer Reviews 4.4 out of 5 stars 1,021 4.5 out of 5 stars 604 4.7 out of 5 stars 1,451 4.4 out of 5 stars 313 4.6 out of 5 stars 432 4.7 out of 5 stars 897 4.2 out of 5 stars 130 Price $11.99$11.99 $14.99$14.99 $15.99$15.99 $16.99$16.99 $14.49$14.49 $15.49$15.49 — Output 3.3V-6V1A 3.3V1A 4.5V1A 6V1A 3.3V1A 4.5V1A 3.3V-12V2A Replace 2-4AA Batteries 2AA Batteries 3AA Batteries 4AA Batteries 2AAA Batteries 3AAA Batteries 2-8AA Batteries Color Black Black Black Black Black Black Black Brand Lenink Lenink Lenink Lenink Lenink Lenink Lenink Package 1 Pack 1 Pack 1 Pack 1 Pack 1 Pack 1 Pack 1 Pack