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Solar Suitcase (New Lithium Version)

It’s finally done, my big ‘ol suitcase full of lithium batteries, inverter, and charge controller.

The specifications are:

-100w PV array
-0.75kWh lithium battery storage
-300w pure sine inverter
-Volt meter showing 3 decimal places (28 = full, 20 = dead)
-SunSaver MPPT charge controller
-Internal circuit breaker and power switch

Let’s take a closer look:

SolarSuitcase_1

The 100w array opens up and has built in tilt legs, made by Renogy.  I re-wired this nice pre-built portable solar array from parallel to series as this project is a 24v system.

SolarSuitcase_5

The solar suitcase contains the batteries and electronics and can be shaded by the solar array.

SolarSuitcase_2

120vac outlet for anything 300w and under.

SolarSuitcase_3

Easily monitor battery capacity and because of the 3 decimal places easily see how fast charging or discharging is taking place.

SolarSuitcase_4

Simple DC banana jack for connecting PV array

SolarSuitcase_6

The fun stuff! At the top of the image you see 3 paralleled 0.250kWh 24v lithium batteries in parallel.  There is a circuit breaker and power switch.  To the right is the pure sine 300w inverter, and at the bottom is the charge controller.

This replaces my previous build of a self contained power system, which because of the lead batteries didn’t have much capacity and weighed too much (see project here).  This project was inspired by a portable power supply I built in my teens which also had lead acid in it (see project here)…this suitcase is actually the same exact one given a second life!