These highly innovative lithium USB rechargeable batteries have a built-in USB-C port. This novel design makes charging easier than ever, as they can be connected to any USB charger or socket. When charging, useful LED status lights will keep you informed of the charging process. As these batteries cannot be charged using an ordinary battery charger, it is important that they are charged using the cable supplied.

With no memory effect, due to their lithium chemistry, they will surpass regular rechargeable when it comes to longevity. Furthermore, once they have reached full capacity after 3 or four recharge cycles, they can go through over an extraordinary 1500 full or part charge cycles.

These batteries are available in the most popular battery sizes and each product is presented in a handy plastic case, where they should be stored when not in use to avoid any contact being made with the terminals.

ZL-21700 Selling Points:

> Super Long Lasting USB Rechargeable Batteries: 5000mAh High Capacity Li batteries could long lasting in your high power consumption devices, the standard battery size is suitable for all kinds of flashlight, electric candle, radio, emergency light etc.

> 1500 Times Cycle To Use Longer:The new generation Type C USB rechargeable batteries adopt High-quality LG cell can support more than 1500 times recharge, greatly saving your money and avoid the waste of disposable alkaline batteries.

> Convenient Type C USB Charging:Directly Charging by USB cable could reduces current consumption archive more FAST and efficient charging. Use the TYPE C cable can connect to any USB power source, such as AC adapter, power bank, laptop, car charger etc, no need extra battery charger.

> LED Indicators:Clear LED lights on battery surface show the charging status of each rechargeable batteries: RED-Charging, BLUE-Fully Charging.

> High Performance rechargeable batteries:rechargeable battery have ultra low self discharge it still maintains 85% of the capacity After 5 years; Stainless steel surface effectively prevents battery from leakage, more safer using in your devices.

SINJEE 3.6V USB 21700 Rechargeable Lithium Battery, Steady Voltage for High Drain Applications:

> 1500 cycles time – Long battery Life

> CE/ROHS/FCC certified

> Ideal for flashlight, electric candle, radio, emergency light etc

> 3.6V 18wh Lithium USB battery – Steady Voltage

> 5000mWh li-ion long-lasting double a batteries

> These cells can provide approximately the same and steady voltage until the whole cell is depleted

> Fully charged in 2 hours – Fast charging Battery

> Full charge in 2 hours, Advanced Quick charging technology with DC 5V/2A USB-C input, more efficient and energy-saving

> Build-in Light Show the Charging Process

> it showed the red light indicating recharging.

> it showed the blue light indicating when they were fully charged

Note:

This lithium batteries was built-in a PCB protection board, it will auto cut off if the discharge current too high.