diff -wbBur ibam-0.5.2/ibam.inl ibam-0.5.2.q/ibam.inl
--- ibam-0.5.2/ibam.inl	2009-03-09 19:53:20.000000000 +0300
+++ ibam-0.5.2.q/ibam.inl	2013-11-11 23:45:39.197066574 +0400
@@ -959,7 +959,13 @@
       acpi.close();
       apm = new acpi_status();
    } else {
       sysfs.open((sysfs_path+"/BAT0/present").c_str());
+      if(!sysfs.is_open()) {
+        sysfs.open((sysfs_path+"/BAT1/present").c_str());
+      }
+      if(!sysfs.is_open()) {
+        sysfs.open((sysfs_path+"/BAT2/present").c_str());
+      }
       if(sysfs.is_open()) {
 #ifdef IBAM_DEBUG
       cout << "using sysfs" << endl;