diff --git a/simple/widgets/system_resources.lua b/simple/widgets/system_resources.lua
index b20592c..f338bcc 100644
--- a/simple/widgets/system_resources.lua
+++ b/simple/widgets/system_resources.lua
@@ -151,8 +151,13 @@ function getBatteryCapacity()
     local capacity = 0
     for b in getBatteries() do
         if b:sub(1,3) ~= 'hid' and readCommand("cat /sys/class/power_supply/" .. b .. "/type"):match("Battery") then
-            charge = charge + readCommand("cat /sys/class/power_supply/" .. b .. "/energy_now")
-            capacity = capacity + readCommand("cat /sys/class/power_supply/" .. b .. "/energy_full")
+            if type(readCommand("cat /sys/class/power_supply/" .. b .. "/energy_now")) == "string" then
+                charge = charge + readCommand("cat /sys/class/power_supply/" .. b .. "/charge_now")
+                capacity = capacity + readCommand("cat /sys/class/power_supply/" .. b .. "/charge_full")
+            else
+                charge = charge + readCommand("cat /sys/class/power_supply/" .. b .. "/energy_now")
+                capacity = capacity + readCommand("cat /sys/class/power_supply/" .. b .. "/energy_full")
+            end
         end
     end
     return charge / capacity