Rechargeable lithium-ion batteries from Vinnic via USB: Away with disposable products, towards environmentally friendly energy! Tired of constantly replacing disposable batteries? Are you frustrated by the search for the right charger? The USB rechargeable lithium-ion battery from Vinnic offers a revolutionary energy experience. 1.5V constant voltage: Ensures stable power output for consistent device performance. 1500 battery cycles: Longer life, fewer battery changes and more sustainability. Direct charging via USB: No more bulky chargers! With the 4-in-1 USB cable supplied, you can charge conveniently anywhere. High capacity, low self-discharge: Store more power and minimise energy loss to ensure readiness when you need it. AA and AAA dual sizes: Compatible with a wide range of devices. 4-pack convenience: Power multiple devices at once. Eco-friendly: Reduces single-use battery waste, contributing to a greener planet. Cost-effective: Long-term savings compared to frequent purchases of disposable batteries. Convenient charging: USB charging eliminates the need for special chargers. Reliable performance: Constant voltage ensures consistent device operation.