18650 Battery w./ Charge Tester

Description: Replacement 18650 Battery for ArGo, Air SE, & Air II – High power, high quality, long-life Li-ion battery. PLUS, store, protect, and easily check the charge level of your spare battery with our convenient Battery Charge Tester! Includes: 1 x 18650 Battery + 1 x 18650 Charge Tester