HX-1 - Slow charging using non-standard power source
When charging from other sources, such as wall chargers etc., it's important that the charger in question should output around 2000mA or 2A at 5V DC.
Also, a typical PC USB port only outputs around 400mA (some PCs have special "high output" USB ports specifically for charging the myriad USB devices we have in our life these days).
Using any low output charging device will mean that charging takes much longer.
If the steps above do not resolve this issue, please contact our technical support team for further assistance.
You can submit at technical support ticket via our website at http://hema.helpserve.com/Tickets/Submit