I am trying to send 0.52 from my address to address2 and I am passing fees like below

Code:

 var tx = bitcore.Transaction();
 tx.from(utxos);
 tx.to(address2,satoshibits); // 520000
 tx.change(address);
 tx.fee(fees); // 260000 in satoshi
 tx.sign(privateKey);
 tx.serialize();

Error:

      Fee is too large: expected less than 150000 but got 260000

Anyone have an idea if I want to pass max fees then default