Can You Take Rechargeable Battery Pack On A Plane. For more information see the FAA guidance on portable rechargers. Newer portable chargers will have the watt hours printed on them.

Lithium ion batteries aka. Rechargeable lithium lithium polymer LIPO secondary lithium. It features a 45-watt USB-C port to charge your laptop back to full battery and 15-watt USB ports.
For rechargeable lithium ion batteries.
Dry batteries your common. A maximum of two spares are also allowed under the same conditions and they must be insulated to prevent short circuits. You can travel with personal care items in your carry-on bag if they are. Spare lithium batteries both lithium metal and lithium ionpolymer are prohibited in checked baggage.

