We have a 125hp and there is a circuit breaker on port side of motor under the terminal block, make sure the breaker button is pushed down.
You said battery's, I'm assuming you have two battery's, do you have a battery switch,that needs to be turned on?
I would check how you hooked up the battery's did you connect them with nylon locking nuts never wing nuts., It worked before you took the battery's out. What changed,you could test them with a load tester to be sure.
Make sure the neutral interlock switch is pushed down.
Take the kill switch tab out and make sure it's in correctly.
Is this when you jump the solenoids two large lugs with a screwdriver to bypass the ignition switch make sure the key is on and the flush muffs are full of water,don't get shocked,