Two flashlights. Not the Maglite type-too big. There are smaller and brighter ones out there. Surefire, Stinger, Pelican, etc. Get a big one and a small one. Two is one and one is none. Your baton is an impact weapon and works much better than an outdated flashlight design.
Hinged cuffs. Peerless and S&W are good brands. We are issued ASP cuffs and they are alright. Get double locking cuffs. Carry one set of oversize cuffs in the squad. Get zip cuffs if they are authorized. They work well in a pinch.