Utilize Hubble's Travel Switch
Make sure your Hubble's travel switch is in the OFF position, when not in use, to preserve the battery.
How Long Should a Full Charge Last with Hubble?
At idle, with no ports in use, the drainage rate is 1.4%/hour. At idle in airplane mode, the drainage rate is 0.7%/hour.
Does the Drainage Rate Increase with More Ports In Use?
Yes, the battery drainage will increase with more ports in use as more chips are turned on from idle.