Battery Charger: Can Charge 14500 and 10440 lithium-ion rechargeable batteries.
This Charger is designed specifically to charge 3.7 v lithium-ion rechargeable batteries. It can plug into any normal wall outlet and charge 1x battery at a time.
Never use damaged or peeling batteries in your LED hoop or battery charger. Keep batteries charged in between hooping sessions with this 3.7 volt lithium ion plug-in battery charger to maximize the life of your hoop battery! Purchase new batteries when they start to show signs of wear and tear, or if they aren't retaining their charge capacity like when they were new.