From f8714dd57a8285aab9822f5a50fcf88649a8ab62 Mon Sep 17 00:00:00 2001
From: ThomasV <thomasv@electrum.org>
Date: Sun, 16 Mar 2025 17:01:07 +0100
Subject: [PATCH] fix #9635

---
 electrum/wallet.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/electrum/wallet.py b/electrum/wallet.py
index b92a8df0a..e2b5a7468 100644
--- a/electrum/wallet.py
+++ b/electrum/wallet.py
@@ -1728,6 +1728,9 @@ class Abstract_Wallet(ABC, Logger, EventListener):
         return dust_threshold(self.network)
 
     def get_candidates_for_batching(self, outputs, coins) -> Sequence[Transaction]:
+        # do not batch if we spend max (not supported by make_unsigned_transaction)
+        if any([parse_max_spend(o.value) is not None for o in outputs]):
+            return []
         candidates = []
         domain = self.get_addresses()
         for hist_item in self.adb.get_history(domain):