Ensure that Battery charge may not be used as a shutdown trigger when its value is -1 (indicating its unavailable).

Author: SebastianOehm

WinNUT_V2/WinNUT-Client/WinNUT.vb

@@ -641,7 +641,7 @@ Public Class WinNUT
                 If .Batt_Charge = -1 AndAlso .Batt_Runtime = -1 Then
                     LogFile.LogTracing("Battery properties unavailable, unable to validate shutdown conditions.", LogLvl.LOG_WARNING, Me)
                 ElseIf Not ShutdownStatus Then
-                    If .Batt_Charge <= My.Settings.PW_BattChrgFloor Or
+                    If (.Batt_Charge <> -1 AndAlso .Batt_Charge <= My.Settings.PW_BattChrgFloor) Or
                         (.Batt_Runtime <> -1 AndAlso .Batt_Runtime <= My.Settings.PW_RuntimeFloor) Then
                         LogFile.LogTracing("UPS battery has dropped below stop condition limits.",
                                                LogLvl.LOG_NOTICE, Me, StrLog.Item(AppResxStr.STR_LOG_SHUT_START))