Product Description Color: Black
Battery Indicators:
-7.5V above three bright lights
-7.0V above two bright lights
-6.5V above a bright light
-6.5V or less a lamp flashese slowly
-Input:DC 100-240v(can charge the battery with 8.4V charger)
-Output:DC 8.4v USB:5V
Package Included:
1x 18650 Rechargeable battery pack box
1x Nylon bandage

• 18650 Battery pack box:upgrading in traditional 18650 8.4V lithium battery group basis
• Improve replacement battery pack inconvenient shortcomings,greatly facilitate the users of the battery pack DIY requirements,without spot welding battery,thereby greatly reducing the battery internal resistance,improve the battery discharge performance,so as to effectively improve battery life
• Power supply:you can use two or four 18650 rechargeable lithium battery as a power source
• The output side:USB and DC dual output power supply function,DC output voltage is 8.4V(can power the 8.4V device,such as the bike light),DC output voltage is 5V(can power the cellphone and other 5V device),to meet a wider usage scenarios,the product comes with overcharge and over discharge protection,protection of the battery is more safe and sustainable

18650 Battery pack box:upgrading in traditional 18650 8.4V lithium battery group basisBestFace