diff --git a/freqtrade/exchange/exchange.py b/freqtrade/exchange/exchange.py
index 3adb174b1..65f15b98b 100644
--- a/freqtrade/exchange/exchange.py
+++ b/freqtrade/exchange/exchange.py
@@ -691,8 +691,13 @@ class Exchange:
         pair: str,
         price: float,
         stoploss: float
-    ) -> Optional[float]:
-        return self._get_stake_amount_limit(pair, price, stoploss, 'max')
+    ) -> float:
+        max_stake_amount = self._get_stake_amount_limit(pair, price, stoploss, 'max')
+        if max_stake_amount is None:
+            # * Should never be executed
+            raise OperationalException(f'{self.name}.get_max_pair_stake_amount should'
+                                       'never set max_stake_amount to None')
+        return max_stake_amount
 
     def _get_stake_amount_limit(
         self,
diff --git a/freqtrade/freqtradebot.py b/freqtrade/freqtradebot.py
index 44665ff61..073f4d3f3 100644
--- a/freqtrade/freqtradebot.py
+++ b/freqtrade/freqtradebot.py
@@ -546,9 +546,6 @@ class FreqtradeBot(LoggingMixin):
         max_stake_amount = self.exchange.get_max_pair_stake_amount(trade.pair,
                                                                    current_rate,
                                                                    self.strategy.stoploss)
-        if max_stake_amount is None:
-            # * Should never be executed
-            raise OperationalException(f'max_stake_amount is None for {trade}')
         stake_available = self.wallets.get_available_stake_amount()
         logger.debug(f"Calling adjust_trade_position for pair {trade.pair}")
         stake_amount = strategy_safe_wrapper(self.strategy.adjust_trade_position,
@@ -858,9 +855,6 @@ class FreqtradeBot(LoggingMixin):
 
         if not self.edge and trade is None:
             stake_available = self.wallets.get_available_stake_amount()
-            if max_stake_amount is None:
-                # * Should never be executed
-                raise OperationalException(f'max_stake_amount is None for {trade}')
             stake_amount = strategy_safe_wrapper(self.strategy.custom_stake_amount,
                                                  default_retval=stake_amount)(
                 pair=pair, current_time=datetime.now(timezone.utc),
diff --git a/freqtrade/optimize/backtesting.py b/freqtrade/optimize/backtesting.py
index e973b1fbe..ecfc5c342 100644
--- a/freqtrade/optimize/backtesting.py
+++ b/freqtrade/optimize/backtesting.py
@@ -414,9 +414,6 @@ class Backtesting:
         current_profit = trade.calc_profit_ratio(row[OPEN_IDX])
         min_stake = self.exchange.get_min_pair_stake_amount(trade.pair, row[OPEN_IDX], -0.1)
         max_stake = self.exchange.get_max_pair_stake_amount(trade.pair, row[OPEN_IDX], -0.1)
-        if max_stake is None:
-            # * Should never be executed
-            raise OperationalException(f'max_stake_amount is None for {trade}')
         stake_available = self.wallets.get_available_stake_amount()
         stake_amount = strategy_safe_wrapper(self.strategy.adjust_trade_position,
                                              default_retval=None)(
@@ -557,9 +554,6 @@ class Backtesting:
 
         min_stake_amount = self.exchange.get_min_pair_stake_amount(pair, propose_rate, -0.05) or 0
         max_stake_amount = self.exchange.get_max_pair_stake_amount(pair, propose_rate, -0.05) or 0
-        if max_stake_amount is None:
-            # * Should never be executed
-            raise OperationalException(f'max_stake_amount is None for {trade}')
         stake_available = self.wallets.get_available_stake_amount()
 
         pos_adjust = trade is not None