I initially bought a motorcycle battery, filled it with distilled water and epsom salt (magnesium sulfate). The epsom salt is dissolve in as much as the water will allow. Blender helps...adding little by little, and blending till its clear again, then add more till the water can no longer hold any more (there is some at the bottom no matter how much you blend it).

I charged it up to 12 volts on my car battery charger, in parallel with another 12volt battery. I then ran it down to 10 volts by connecting it a 12v inverter with a light bulb load, and draining it. I then ran it down to 6 volts by shorting it on and off... but long story short(hah), I got it down to the 6 volt sweet spot, that crystal cells need to run.

I then cut the housing ("battery side") for the lantern and test fit it on top. I soldered the wire on the contacts where the "Normal" 6v lantern battery connects to; If you look at the "bulb side" of the housing The outside C ring is positive, the inside circle is negative. I then crimped on some automotive yellow "crimp terminals".

Its been on the whole time except 1 or 2, 5 min tests. The first day it went from 6 volts to 4.5, second it went to 3.64, 3rd it hovered between 3.4 and 3.5v. 4th same 3.4-3.5v. 5th 3.4-3.5v. Also for the last 3 days the battery short amperage is .5 amps. For the past 3 days the brightness has not changed and is the brightness that is in the pictures. I will try to log the progression past this point.