1.5V Constant VoltageThe insziii lithium-ion battery has a capacity of up to 7400mWh with a constant 1.5V voltage providing stable power and longer operating time for devices used at high frequencies, such as flashlights, water heaters, gas stoves, radios, wireless microphones, household devices, etc.
Over 1200 CyclesThe rechargeable D lithium-ion battery has 1200+ cycles, no memory effect, can be charged at any time, will help you save big money and save time compared with single-use batteries, which are very convenient and reliable.
USB-C Charge DesignThese lithium-ion D batteries are easily charged with a 4-in-1 USB-C cable, eliminating the need for a charger and adapter, and can be fully charged in approximately 3 hours. Built-in LED shows the charging process, with a flashing green light indicating charging and a solid green light indicating full charge.
Multiple Safety ProtectionBuilt-in integrated safety circuit to ensure safe operation. When the battery is fully charged, it will automatically stop charging, effectively preventing overcharging, overcurrent, overvoltage, overheating, and short circuit.
Energy-Saving BatteryLoving the environment starts with rechargeable Li-ion D batteries, which save thousands of alkaline batteries and reduce landfill waste.