diff --git a/boards/intel/aerofc-v1/aerofc_adc/aerofc_adc.cpp b/boards/intel/aerofc-v1/aerofc_adc/aerofc_adc.cpp
index c43b02c5a1..4f740dfba3 100644
--- a/boards/intel/aerofc-v1/aerofc_adc/aerofc_adc.cpp
+++ b/boards/intel/aerofc-v1/aerofc_adc/aerofc_adc.cpp
@@ -56,6 +56,13 @@
 // 10Hz
 #define CYCLE_TICKS_DELAY MSEC2TICK(100)
 
+
+uint32_t px4_arch_adc_dn_fullcount(void)
+{
+	return 1 << 12; // 12 bit ADC
+}
+
+
 enum AEROFC_ADC_BUS {
 	AEROFC_ADC_BUS_ALL = 0,
 	AEROFC_ADC_BUS_I2C_INTERNAL,
diff --git a/platforms/posix/src/px4/common/CMakeLists.txt b/platforms/posix/src/px4/common/CMakeLists.txt
index 491f56bea6..79a9354940 100644
--- a/platforms/posix/src/px4/common/CMakeLists.txt
+++ b/platforms/posix/src/px4/common/CMakeLists.txt
@@ -49,6 +49,7 @@ if("${CONFIG_SHMEM}" STREQUAL "1")
 endif()
 
 add_library(px4_layer
+	adc.cpp
 	px4_posix_impl.cpp
 	px4_posix_tasks.cpp
 	px4_sem.cpp
diff --git a/platforms/posix/src/px4/common/adc.cpp b/platforms/posix/src/px4/common/adc.cpp
new file mode 100644
index 0000000000..a4e162e37e
--- /dev/null
+++ b/platforms/posix/src/px4/common/adc.cpp
@@ -0,0 +1,40 @@
+/****************************************************************************
+ *
+ *   Copyright (C) 2019 PX4 Development Team. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name PX4 nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#include <drivers/drv_adc.h>
+
+uint32_t px4_arch_adc_dn_fullcount(void)
+{
+	return 1 << 12; // 12 bit ADC
+}
+
diff --git a/src/modules/battery_status/parameters.cpp b/src/modules/battery_status/parameters.cpp
index 4b2e3a41bd..371aaaf018 100644
--- a/src/modules/battery_status/parameters.cpp
+++ b/src/modules/battery_status/parameters.cpp
@@ -40,6 +40,7 @@
 #include "parameters.h"
 
 #include <px4_platform_common/log.h>
+#include <drivers/drv_adc.h>
 
 namespace battery_status
 {
@@ -67,7 +68,7 @@ int update_parameters(const ParameterHandles &parameter_handles, Parameters &par
 
 	} else if (parameters.battery_voltage_scaling < 0.0f) {
 		/* apply scaling according to defaults if set to default */
-		parameters.battery_voltage_scaling = (3.3f / 4096);
+		parameters.battery_voltage_scaling = (3.3f / px4_arch_adc_dn_fullcount());
 		param_set_no_notification(parameter_handles.battery_voltage_scaling, &parameters.battery_voltage_scaling);
 	}
 
@@ -77,7 +78,7 @@ int update_parameters(const ParameterHandles &parameter_handles, Parameters &par
 
 	} else if (parameters.battery_current_scaling < 0.0f) {
 		/* apply scaling according to defaults if set to default */
-		parameters.battery_current_scaling = (3.3f / 4096);
+		parameters.battery_current_scaling = (3.3f / px4_arch_adc_dn_fullcount());
 		param_set_no_notification(parameter_handles.battery_current_scaling, &parameters.battery_current_scaling);
 	}