a

TE_Type = "cofh_thermalexpansion_energycell"
Mek_Type = "advanced_energy_cube"

while true do
 term.clear()
 term.setCursorPos(1,1)

 cell = {}
    cell = peripheral.find(TE_Type)

    if cell == nil then
        cell = peripheral.find(Mek_Type)
    end

    if cell == nil then
        print("Error: No cell attached. Please attach a cell and connect it to the computer with a wired modem.")
    else
        print("No error!")
    end

    sleep(2)
end