Consistent 1.5V and 3.25 hour charging time are game changing. Stop buying single-use batteries and get a modern solution. Designed for performance convenience and reliability, our D batteries will help you reduce waste and save money and time. Battery icon with lightning bolt Fast Charging Lithium Battery 1000+ Charge Cycles USB plug icon Convenient USB Charge Port Just plug any USB-C or micro USB cable or use the included cable to charge four batteries at once.

• Convenient USB Charge Port plug any USB-C or micro USB cable or use the included cable to charge four batteries at once.
• LED Charging Indicator lets you know when they are fully charged.
• On-Board Smart Technology Provides Safe Charging
• No more batteries ruining expensive electronic devices!