diff --git a/docs/Energy_Draw.md b/docs/Energy_Draw.md
index 950e8a4..4b58907 100644
--- a/docs/Energy_Draw.md
+++ b/docs/Energy_Draw.md
@@ -7,15 +7,17 @@ A callback for recording GPU power draw (watts) on epoch begin and end. The call
 
 ### how-to-use
 
-Use it as you would use any other Callback in Tensorflow or Keras.
+Before `model.fit()` in the input model:
 
-`
-power_draw = PowerDrawCallback()
+`power_draw = PowerDrawCallback()`
 
-model.fit(...callbacks=[power_draw]...)
-`
+Then use `power_draw` as you would callbacks in general:
 
-It's possible to read the energy draw data:
+`model.fit(...callbacks=[power_draw]...)`
 
-`print(power_draw.logs)`
+To get the energy draw data into the experiment log:
+
+`history = talos.utils.power_draw_append(history, power_draw)`
+
+NOTE: this line has to be after `model.fit()`.
 
diff --git a/docs/_coverpage.md b/docs/_coverpage.md
index 89961a9..5149099 100644
--- a/docs/_coverpage.md
+++ b/docs/_coverpage.md
@@ -1,6 +1,6 @@
 ![logo](_media/talos_logo_bg.png)
 
-## v1.2
+## v1.2.3
 
 > Hyperparameter Experiments with Tensorflow, PyTorch and Keras
 
diff --git a/docs/index.html b/docs/index.html
index c9e846d..05e0111 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -16,7 +16,7 @@
   <div id="app"></div>
   <script>
     window.$docsify = {
-      name: 'Talos 1.2',
+      name: 'Talos 1.2.3',
       repo: 'https://github.com/autonomio/talos',
       coverpage: true,
       loadSidebar: true,
diff --git a/setup.py b/setup.py
index b0a39a2..2be1419 100755
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
 URL = 'http://autonom.io'
 LICENSE = 'MIT'
 DOWNLOAD_URL = 'https://github.com/autonomio/talos/'
-VERSION = '1.2.2'
+VERSION = '1.2.3'
 
 
 try:
diff --git a/talos/__init__.py b/talos/__init__.py
index 90493d4..96f5341 100755
--- a/talos/__init__.py
+++ b/talos/__init__.py
@@ -34,4 +34,4 @@
 del commands, scan, model, metrics, key
 del sub, keep_from_templates, template_sub, warnings
 
-__version__ = "1.2.2"
+__version__ = "1.2.3"
diff --git a/talos/utils/power_draw_append.py b/talos/utils/power_draw_append.py
index 33cd6a8..23bb241 100644
--- a/talos/utils/power_draw_append.py
+++ b/talos/utils/power_draw_append.py
@@ -1,17 +1,25 @@
 def power_draw_append(history, power_draw):
 
     '''For appending the data from PowerDrawCallback to the history object
-    and allowing the data to be captured in the experiment log in Talos.'''
+    and allowing the data to be captured in the experiment log in Talos.
+
+    history | object | tf.keras model history object
+    power_draw | object | PowerDrawCallback object
+
+    '''
 
     import numpy as np
 
     joined = power_draw.log['epoch_begin'] + power_draw.log['epoch_end']
-    avg_watts = (np.array(joined)) / 2
-
     history.history['watts_min'] = [min(joined)]
     history.history['watts_max'] = [max(joined)]
     history.history['seconds'] = [sum(power_draw.log['seconds'])]
 
+    # get average watts per epoc
+    epoch_begin = np.array(power_draw.log['epoch_begin'])
+    epoch_end = np.array(power_draw.log['epoch_end'])
+    avg_watts = (epoch_begin + epoch_end) / 2
+
     watt_seconds = round(sum(avg_watts * np.array(power_draw.log['seconds'])), 2)
     history.history['Ws'] = [watt_seconds]