diff --git a/libraries/AP_BattMonitor/AP_BattMonitor_SMBus_Solo.cpp b/libraries/AP_BattMonitor/AP_BattMonitor_SMBus_Solo.cpp
index 02e08cc4eb..1ef8fc706e 100644
--- a/libraries/AP_BattMonitor/AP_BattMonitor_SMBus_Solo.cpp
+++ b/libraries/AP_BattMonitor/AP_BattMonitor_SMBus_Solo.cpp
@@ -8,9 +8,8 @@
 
 #define BATTMONITOR_SMBUS_SOLO_CELL_VOLTAGE         0x28    // cell voltage register
 #define BATTMONITOR_SMBUS_SOLO_CURRENT              0x2a    // current register
-#define BATTMONITOR_SMBUS_SOLO_BUTTON_DEBOUNCE      3       // button held down for 3 intervals will cause a power off event
-
-#define BATTMONITOR_SMBUS_SOLO_NUM_CELLS 4
+#define BATTMONITOR_SMBUS_SOLO_BUTTON_DEBOUNCE      6       // button held down for 5 intervals will cause a power off event
+#define BATTMONITOR_SMBUS_SOLO_NUM_CELLS            4       // solo's battery back is 4S
 
 /*
  * Other potentially useful registers, listed here for future use
@@ -134,4 +133,3 @@ uint8_t AP_BattMonitor_SMBus_Solo::read_block(uint8_t reg, uint8_t* data, uint8_
     // return success
     return bufflen;
 }
-