diff --git a/galvani/BioLogic.py b/galvani/BioLogic.py
index cc54d17..4eaf057 100644
--- a/galvani/BioLogic.py
+++ b/galvani/BioLogic.py
@@ -26,7 +26,14 @@ def fieldname_to_dtype(fieldname):
     elif fieldname in ("ox/red", "error", "control changes", "Ns changes",
                        "counter inc."):
         return (fieldname, np.bool_)
-    elif fieldname in ("x", "control/V/mA", "Temperature/°C", "Efficiency/%"):
+    elif fieldname in ("time/s", "P/W", "(Q-Qo)/mA.h", "x", "control/V",
+                       "control/mA", "control/V/mA", "(Q-Qo)/C", "dQ/C",
+                       "freq/Hz", "|Ewe|/V", "|I|/A", "Phase(Z)/deg",
+                       "|Z|/Ohm", "Re(Z)/Ohm", "-Im(Z)/Ohm"):
+        return (fieldname, np.float_)
+    elif fieldname in ("Q charge/discharge/mA.h", "step time/s",
+                       "Q charge/mA.h", "Q discharge/mA.h",
+                       "Temperature/°C", "Efficiency/%", "Capacity/mA.h")
         return (fieldname, np.float_)
     elif fieldname in ("cycle number", "I Range", "Ns", "half cycle"):
         return (fieldname, np.int_)
@@ -238,6 +245,11 @@ VMPdata_colID_dtype_map = {
     495: ('|I h5|/A', '<f4'),
     496: ('|I h6|/A', '<f4'),
     497: ('|I h7|/A', '<f4'),
+    498: ('Q charge/mA.h', '<f8'),
+    499: ('Q discharge/mA.h', '<f8'),
+    500: ('step time/s', '<f8'),
+    501: ('Efficiency/%', '<f8'),
+    502: ('Capacity/mA.h', '<f8'),
 }
 
 # These column IDs define flags which are all stored packed in a single byte