Case for my M328 multifunction component tester

Some time ago I bought a multi function component tester from http://www.aliexpress.com/item/Free-shipping-Big-screen-Digital-ESR-Meter-Mega328-Transistor-Tester-Diode-Triode-Capacitance-MOS-PNP-NPN/32369463548.html?spm=2114.01010208.8.9.Njmw47
I decided it was time to provide an adequate enclosure to it, and here it is.
I added a Li-Ion rechargeable battery, and the necessary circuitry. If someone is interested in the electrical details, just let me know.

I plan to do some improvements, l