40000mAh Full Charging, Running 10 Days:
40000mAh Full Charging, Running 10 Days:



With ROMOSS Titan 40 power bank, charge three devices simultaneously. 3 output ports (2*USB 5V/3A (Max.) cover your daily charging needs.
Full-view LED display presents available battery percentage exactly and it can show the current and voltage as well. Ensures easy check and accurate battery capacity.
Reliable Massive Capacity
With an impressive 40000mAh capacity, you'll have ample power to keep your devices running for extended periods, whether you're traveling, working, or exploring.
Comprehensive Protection, Always On!
*ROMOSS Fit Charge®Smart Charging Tech
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FAQ
What conditions should be met to achieve fast charging when using a power bank for charging my phone?
What conditions should be met to achieve fast charging when using a power bank for charging my phone?
The following conditions need to be met:
(1) The phone must support fast charging;
(2) The data cable used for charging must support fast charging;
(3) The device should be connected to a fast charging port;
(4) The fast charging protocol of the power bank and smartphone must be compatible.
When all four conditions are met, fast charging can be achieved for a single device. However, please note that if you try to charge two or more devices simultaneously, the fast charging function may be disabled.
How to enter low-current mode?
How to enter low-current mode?
Press the button on the device twice to enter the low-current mode. The indicator will flash in different colors. To exit the low-current mode, simply press the button again.
LED indicator status explanation:
LED indicator status explanation:
(1).When the LED indicator is orange or white, it indicates that the power bank is in normal charging mode.
(2).When the LED indicator is blue, it indicates that the power bank is in fast charging mode.
What should I do if the power bank suddenly cannot charge my phone?
What should I do if the power bank suddenly cannot charge my phone?
(1).Try using a different charging cable.
(2).Try charging a different mobile device with the power bank.
If you have tried the above methods and are still unable to use the power bank, please send us a message for further assistance.