Batman had a secret deathwish on his first fight with Bane, which would explain him being a bit out of character, reckless and too unprepared.
He didn't use the shurikens/batarangs in TDK either.
Batman Begins:
1.) Tumbler
2.) Batarangs/shurikens
3.) Grapple gun
4.) Scope
5.) Frequency sonar for the bats
6.) Mini-bombs(I guess that's what they would be called)
The Dark Knight:
1.) Tumbler
2.) Bat-pod
3.) Pneumatic mangler
4.) Explosive gel
5.) Grapple gun
6.) Bat-sonar
The Dark Knight Rises:
1.) Bat-pod
2.) The Bat
3.) EMT gun
4.) EMT device
5.) Flashbangs/stun pellets(whichever you prefer to call them)
6.) Batarang darts
Edit: Also forgot about the mini-bomb being used in TDKR as well AND the grapple gun could've been used during Batman's return as well when he pulled up that one hostage.
Yah, I realized I looked over the mini-bombs and the grapple gun on the last page, but I don't think I would consider the gauntlet blades specifically for TDKR just because the gauntlets are used as weapons in all three films; if anything, I should've had his gauntlets for every film(he broke Ra's al Ghul's sword with them, he used the blades on Joker, he broke Bane's mask).
And I never really think of the cape as a "weapon", but I could see how someone would see it as that, but I just never did.
The other ones...I think that's just getting real detailed, lol. The electric shock with his mask was just a precaution if someone tried to pull his mask off, the smaller sonar device was just added to the Bat-sonar(as the EMT device was the EMT device Batman uses in the sewers AND the device he gave Gordon to use on the bomb, since that's what they are, devices which separates from the gun he uses), the Sky-Hook wasn't really Batman's weapon as Bane uses it as well and the little drill...okay, MAYBE that would count, so that's an extra one.
I thought we were talking gadgets not weapons. He also uses a device to check the marked Joker dollar bills.
If the cape were heavier, Batman could use it to catch bullets or develop a fighting style that uses the cape as a distraction.