diff --git a/services/wallet/common/const.go b/services/wallet/common/const.go
index 49b7f9ab5..c742bb976 100644
--- a/services/wallet/common/const.go
+++ b/services/wallet/common/const.go
@@ -14,16 +14,18 @@ const (
 type ChainID uint64
 
 const (
-	UnknownChainID  uint64 = 0
-	EthereumMainnet uint64 = 1
-	EthereumGoerli  uint64 = 5
-	EthereumSepolia uint64 = 11155111
-	OptimismMainnet uint64 = 10
-	OptimismGoerli  uint64 = 420
-	OptimismSepolia uint64 = 11155420
-	ArbitrumMainnet uint64 = 42161
-	ArbitrumGoerli  uint64 = 421613
-	ArbitrumSepolia uint64 = 421614
+	UnknownChainID     uint64 = 0
+	EthereumMainnet    uint64 = 1
+	EthereumGoerli     uint64 = 5
+	EthereumSepolia    uint64 = 11155111
+	OptimismMainnet    uint64 = 10
+	OptimismGoerli     uint64 = 420
+	OptimismSepolia    uint64 = 11155420
+	ArbitrumMainnet    uint64 = 42161
+	ArbitrumGoerli     uint64 = 421613
+	ArbitrumSepolia    uint64 = 421614
+	BinanceChainID     uint64 = 56 // obsolete?
+	BinanceTestChainID uint64 = 97 // obsolete?
 )
 
 type ContractType byte
diff --git a/services/wallet/transfer/commands.go b/services/wallet/transfer/commands.go
index 276717197..43ce64f66 100644
--- a/services/wallet/transfer/commands.go
+++ b/services/wallet/transfer/commands.go
@@ -47,16 +47,14 @@ const (
 var (
 	// This will work only for binance testnet as mainnet doesn't support
 	// archival request.
-	binanceChainErc20BatchSize   = big.NewInt(5000)
-	goerliErc20BatchSize         = big.NewInt(100000)
-	goerliErc20ArbitrumBatchSize = big.NewInt(10000)
-	goerliErc20OptimismBatchSize = big.NewInt(10000)
-	erc20BatchSize               = big.NewInt(500000)
-	binancChainID                = uint64(56)
-	goerliChainID                = uint64(5)
-	goerliArbitrumChainID        = uint64(421613)
-	goerliOptimismChainID        = uint64(420)
-	binanceTestChainID           = uint64(97)
+	binanceChainErc20BatchSize    = big.NewInt(5000)
+	goerliErc20BatchSize          = big.NewInt(100000)
+	goerliErc20ArbitrumBatchSize  = big.NewInt(10000)
+	goerliErc20OptimismBatchSize  = big.NewInt(10000)
+	sepoliaErc20BatchSize         = big.NewInt(100000)
+	sepoliaErc20ArbitrumBatchSize = big.NewInt(10000)
+	sepoliaErc20OptimismBatchSize = big.NewInt(10000)
+	erc20BatchSize                = big.NewInt(100000)
 
 	transfersRetryInterval = 5 * time.Second
 )
@@ -134,23 +132,26 @@ func (c *erc20HistoricalCommand) Command() async.Command {
 }
 
 func getErc20BatchSize(chainID uint64) *big.Int {
-	if isBinanceChain(chainID) {
-		return binanceChainErc20BatchSize
-	}
-
-	if chainID == goerliChainID {
+	switch chainID {
+	case w_common.EthereumSepolia:
+		return sepoliaErc20BatchSize
+	case w_common.OptimismSepolia:
+		return sepoliaErc20OptimismBatchSize
+	case w_common.ArbitrumSepolia:
+		return sepoliaErc20ArbitrumBatchSize
+	case w_common.EthereumGoerli:
 		return goerliErc20BatchSize
-	}
-
-	if chainID == goerliOptimismChainID {
+	case w_common.OptimismGoerli:
 		return goerliErc20OptimismBatchSize
-	}
-
-	if chainID == goerliArbitrumChainID {
+	case w_common.ArbitrumGoerli:
 		return goerliErc20ArbitrumBatchSize
+	case w_common.BinanceChainID:
+		return binanceChainErc20BatchSize
+	case w_common.BinanceTestChainID:
+		return binanceChainErc20BatchSize
+	default:
+		return erc20BatchSize
 	}
-
-	return erc20BatchSize
 }
 
 func (c *erc20HistoricalCommand) Run(ctx context.Context) (err error) {
@@ -608,10 +609,6 @@ func loadTransfers(ctx context.Context, blockDAO *BlockDAO, db *Database,
 	return nil
 }
 
-func isBinanceChain(chainID uint64) bool {
-	return chainID == binancChainID || chainID == binanceTestChainID
-}
-
 // Ensure 1 DBHeader per Block Hash
 func uniqueHeaderPerBlockHash(allHeaders []*DBHeader) []*DBHeader {
 	uniqHeadersByHash := map[common.Hash]*DBHeader{}