diff --git a/trunk/pm.c b/trunk/pm.c
index 031539c..a8369c2 100644
--- a/trunk/pm.c
+++ b/trunk/pm.c
@@ -947,45 +947,52 @@ void BT_get_left(){
     static u8 bt_voltage_low_count;  // 電圧でシャットダウンさせる
     u8 temp[2];
 
-    // 電池電圧で強制断が優先される
-    temp[0] = iic_mcu_read_a_byte( IIC_SLA_BT_GAUGE, BT_GAUGE_REG_VCELL );
-    if( iic_mcu_bus_status == ERR_SUCCESS )
+    if( system_status.model == MODEL_TS_BOARD )
     {
-        vreg_ctr[ VREG_C_BT_VOLTAGE ] = temp[0];
-        if( vreg_ctr[ VREG_C_BT_VOLTAGE ] > ( 3100 / 16 / 1.25 ) )
-        {
-            bt_voltage_low_count = 0;
-            iic_mcu_read( IIC_SLA_BT_GAUGE, BT_GAUGE_REG_SOC, 2, temp );
-            vreg_ctr[ VREG_C_BT_REMAIN ] = temp[0];
-            vreg_ctr[ VREG_C_BT_REMAIN_FINE ] = temp[1];
-        }
-        else
-        {
-            bt_voltage_low_count += 1;
-            if( bt_voltage_low_count >= 4* 10 )
-            {
-                vreg_ctr[ VREG_C_BT_REMAIN ] = 0;
-            }
-
-            if( bt_voltage_low_count == 4* 10 ) // およそ10sec(そんなに頻繁には更新されないみたい)
-            {
-                set_irq( VREG_C_IRQ1, REG_BIT_BT_REMAIN );
-            }
-            else if( bt_voltage_low_count == 12 + 4* ( 10 + 6 ))
-            {                   // …時間切れ。強制的に切る
-                system_status.pwr_state = OFF_TRIG;
-                renge_task_interval_run_force = 1;
-            }
-        }
+        vreg_ctr[ VREG_C_BT_REMAIN ] = 99;
     }
     else
     {
-        // バッテリ残量が取れなくなった！
-        vreg_ctr[ VREG_C_STATUS_1 ] |= REG_BIT_GASGAUGE_ERR;
-        if( vreg_ctr[ VREG_C_BT_REMAIN ] != 0 )
+        // 電池電圧で強制断が優先される
+        temp[0] = iic_mcu_read_a_byte( IIC_SLA_BT_GAUGE, BT_GAUGE_REG_VCELL );
+        if( iic_mcu_bus_status == ERR_SUCCESS )
         {
-            vreg_ctr[ VREG_C_BT_REMAIN ] = 0;
-            set_irq( VREG_C_IRQ1, REG_BIT_BT_REMAIN );
+            vreg_ctr[ VREG_C_BT_VOLTAGE ] = temp[0];
+            if( vreg_ctr[ VREG_C_BT_VOLTAGE ] > ( 3100 / 16 / 1.25 ) )
+            {
+                bt_voltage_low_count = 0;
+                iic_mcu_read( IIC_SLA_BT_GAUGE, BT_GAUGE_REG_SOC, 2, temp );
+                vreg_ctr[ VREG_C_BT_REMAIN ] = temp[0];
+                vreg_ctr[ VREG_C_BT_REMAIN_FINE ] = temp[1];
+            }
+            else
+            {
+                bt_voltage_low_count += 1;
+                if( bt_voltage_low_count >= 4* 10 )
+                {
+                    vreg_ctr[ VREG_C_BT_REMAIN ] = 0;
+                }
+
+                if( bt_voltage_low_count == 4* 10 ) // およそ10sec(そんなに頻繁には更新されないみたい)
+                {
+                    set_irq( VREG_C_IRQ1, REG_BIT_BT_REMAIN );
+                }
+                else if( bt_voltage_low_count == 12 + 4* ( 10 + 6 ))
+                {                   // …時間切れ。強制的に切る
+                    system_status.pwr_state = OFF_TRIG;
+                    renge_task_interval_run_force = 1;
+                }
+            }
+        }
+        else
+        {
+            // バッテリ残量が取れなくなった！
+            vreg_ctr[ VREG_C_STATUS_1 ] |= REG_BIT_GASGAUGE_ERR;
+            if( vreg_ctr[ VREG_C_BT_REMAIN ] != 0 )
+            {
+                vreg_ctr[ VREG_C_BT_REMAIN ] = 0;
+                set_irq( VREG_C_IRQ1, REG_BIT_BT_REMAIN );
+            }
         }
     }