AP_BattMonitor: Change from division to multiplication

libraries/AP_BattMonitor/AP_BattMonitor_Backend.cpp

@@ -75,7 +75,7 @@ void AP_BattMonitor_Backend::update_resistance_estimate()
 
     // calculate time since last update
     uint32_t now = AP_HAL::millis();
-    float loop_interval = (now - _resistance_timer_ms) / 1000.0f;
+    float loop_interval = (now - _resistance_timer_ms) * 0.001f;
     _resistance_timer_ms = now;
 
     // estimate short-term resistance

libraries/AP_BattMonitor/AP_BattMonitor_Bebop.cpp

@@ -177,7 +177,7 @@ void AP_BattMonitor_Bebop::read(void)
     }
 
     /* get battery voltage observed by cypress */
-    vbat_raw = (float)data.batt_mv / 1000.0f;
+    vbat_raw = (float)data.batt_mv * 0.001f;
 
     /* do not compute battery status on ramping or braking transition */
     if (data.status == BEBOP_BLDC_STATUS_RAMPING ||
@@ -214,7 +214,7 @@ void AP_BattMonitor_Bebop::read(void)
     _state.voltage = vbat;
     _state.last_time_micros = tnow;
     _state.healthy = true;
-    _state.consumed_mah = capacity - (remaining * capacity) / 100.0f;
+    _state.consumed_mah = capacity - (remaining * capacity) * 0.01f;
 }
 
 #endif

libraries/AP_BattMonitor/AP_BattMonitor_SMBus_Generic.cpp

@@ -60,7 +60,7 @@ void AP_BattMonitor_SMBus_Generic::timer()
 
     // read voltage (V)
     if (read_word(BATTMONITOR_SMBUS_VOLTAGE, data)) {
-        _state.voltage = (float)data / 1000.0f;
+        _state.voltage = (float)data * 0.001f;
         _state.last_time_micros = tnow;
         _state.healthy = true;
     }
@@ -113,7 +113,7 @@ void AP_BattMonitor_SMBus_Generic::timer()
 
     // read current (A)
     if (read_word(BATTMONITOR_SMBUS_CURRENT, data)) {
-        _state.current_amps = -(float)((int16_t)data) / 1000.0f;
+        _state.current_amps = -(float)((int16_t)data) * 0.001f;
         _state.last_time_micros = tnow;
     }
 

libraries/AP_BattMonitor/AP_BattMonitor_SMBus_Solo.cpp

@@ -66,7 +66,7 @@ void AP_BattMonitor_SMBus_Solo::timer()
 
     // read current
     if (read_block(BATTMONITOR_SMBUS_SOLO_CURRENT, buff, 4) == 4) {
-        _state.current_amps = -(float)((int32_t)((uint32_t)buff[3]<<24 | (uint32_t)buff[2]<<16 | (uint32_t)buff[1]<<8 | (uint32_t)buff[0])) / 1000.0f;
+        _state.current_amps = -(float)((int32_t)((uint32_t)buff[3]<<24 | (uint32_t)buff[2]<<16 | (uint32_t)buff[1]<<8 | (uint32_t)buff[0])) * 0.001f;
         _state.last_time_micros = tnow;
     }