This is a rechargeable for your lightsaber. Pictures may differ from actual products.
High rate discharge. Short circuit, over charge and discharge protection.
Lifetime is around 10years.
 
• Xenopixel/Neopixel Battery : 3600mAh 10A, Neopixel Protected.
• RGBx/Stunt Battery : TR18650 3000mAh 3.7V.