OC - Greg Tech 5 Power

local computer = require("computer")
local component = require("component")

--static block definition for testing
local batBuffer = component.proxy("2de8cdf5-9757-49bc-a68d-f026ce628d0b")

local function getTotalCharge(c)
    local inv = c.getAllStacks()
    local totalCharge = 0
    for i = 1, c.getInventorySize(), 1 do
        totalCharge = totalCharge + inv[i].charge
    end
    totalCharge = totalCharge + c.getStoredEU()
    return totalCharge
end

print(tostring(getTotalCharge(batBuffer)))