Resident Evil Requiem: How to Get Both Garage Batteries Fast

Short answer: the Underground Parking Garage gate beneath Cedarbrooks Apartments needs two batteries. The first is in the flooded lower level of the garage itself — up the ladder left of the gate, along the catwalk, down into the water, then the office in the far northwest corner. The second is in the Sewage Facility through the door up the stairs behind you, past a Valve Handwheel puzzle and a large infected. Slot both and the gate opens, handing you the BSAA Container Key and the route out into East Raccoon City. Budget 20–30 minutes on a first run.

Below is the full route with the two things the game does not signpost: the vertical shortcut back from the flooded office, and the fact that the Handwheel has to be turned to completion.

Getting oriented at the gate

You hit this in the Underground Parking Garage under Cedarbrooks Apartments in Resident Evil Requiem. There is a locked metal gate with a battery panel beside it showing two empty slots.

Before you go anywhere, interact with the red-lit electrical box next to the gate. It gives you File #51, “Battery Storage Locations” — a memo confirming replacement batteries are kept in the Parking Garage and the Sewage Facility. Optional, but it locks in your mental map and tells you there are exactly two.

Do them in this order:

• Battery #1 — Parking Garage, flooded lower-level office
• Battery #2 — Sewage Facility, east of the gate

The Sewage half is the harder half. Clear the easy one first so you go in with a checkpoint behind you.

A note on currency: this walkthrough is from our own playthroughs. We have re-checked every post-launch patch through the current build, 1.3.1 (25 June 2026), and none of the published notes touch the Cedarbrooks garage, the battery panel or the Sewage Facility — the March updates were progression and platform fixes, and the June update focused on the Leon Must Die Forever minigame. The route below should still hold on your build.

Battery #1 – the flooded office

Take the ladder down

Face the locked gate and turn left. A few steps away is a ladder going up to a catwalk. Climb it, follow the catwalk round, and drop into the flooded lower section.

This is where most people get turned around. The game funnels you down rather than leaving the battery next to the gate the way older Resident Evil puzzles would. In the water your movement is slower and louder, and several zombies are submerged and waiting.

Clear the water without emptying your bag

This area eats ammo if you panic. What worked:

• Walk into the water, do not run. Sprinting wakes everything at once.
• Keep the handgun aimed at the surface directly ahead as you advance.
• The moment you see ripples or a head breaking the surface, backpedal and fire. Never let them close into a circle.
• If two rise together, drop one with a couple of body shots and knife it down while you kite the second.

There is optional loot on and around the rusted trucks. Grab it if you are short, but secure the battery before you go exploring. If you are running lean generally, our ammo conservation guide covers the habits that keep this section cheap.

Reach the northwest office

From your drop point, you want the far back-left corner of the flooded area:

• Hug the left wall as you wade.
• Climb onto low trucks and platforms where you can — they break line of sight for the swimmers and let you spot ambushes.
• Look for a room with glass windows and a door slightly above the waterline, better lit than everything around it. That is the office.

More zombies wake as you approach. Rule of thumb: commit to killing anything already close, and let anything shambling from distance bottleneck itself at the office door.

Grab the battery and use the ceiling route

Clear the office, then check the wall by the electrical panel — the first Garage Battery is mounted there.

Before you leave, look up. There is a ladder into a ceiling/vent passage. That is the intended shortcut back to the gate and it saves you the entire slog through the water. Take it and you drop out near the ladder you originally climbed.

Slot it

Back at the panel, insert battery one. The mechanism powers up partway and the gate stays shut. That is expected — you need both.

Battery #2 – the Sewage Facility

Get in

Stand facing the gate, turn around, and go up the short flight of stairs behind you. On the left is a door marked “Sewage.” Follow the corridor to a broken section of floor and drop through. That drop is one-way for now, so reload before you commit.

Find the Valve Handwheel

You come out in a large pit-like chamber. On the left/west side there is a small platform with a Valve Handwheel on a crate or the floor. Take it. Directly opposite, across the pit, is a closed door with a bare valve stem — that is where it goes.

Attach it and hold the choke point

Fitting the Handwheel and starting to turn it opens the door and triggers an enemy rush from inside: several standard zombies and at least one tougher infected.

• Step back the moment the wheel is attached. Do not stand in the doorway.
• Drop the first one out with a shotgun blast or leg shots, then retreat into the wider pit area.
• Let them funnel through the door to you. Never push in after them.
• If you are carrying a pipe bomb or grenade, this doorway is the best use of it in the whole sequence.

Finish turning the wheel — this is the trap

The Handwheel does two jobs. It opens the door, and it extends a concrete platform that bridges the pit. I turned it once, saw the door unlock, ran through, and then spent several minutes falling into a gap I did not understand.

After the rush is dead, go back to the valve and hold interact until your character completes the rotation and stops on their own. Watch the concrete slab travel into its final position. Then cross and head up the stairs toward the office.

The large infected

Before the office there is an open area where a large infected brute spawns, usually with Blisterheads and regular zombies behind it.

• Kill the small enemies first. Two or three headshots or one shotgun blast each buys you the room you need.
• Hold the brute at mid-range — far enough to read a lunge, close enough that buckshot still matters.
• Bait the charge, dodge sideways, then punish the recovery animation with shells or a full mag to the head.
• Low on ammo? Kite it around pillars and only fire when you have a clean stun shot.

Do not ration here. You are minutes from a checkpoint and from the loot outside the gate.

Take battery two and open the shortcut

Head up into the east-side office overlooking the facility. Same layout language as the garage office — desks, cabinets, an electrical panel with the second Garage Battery on it. Loot the documents and ammo while you are in there.

Before you leave, unlock the shortcut door nearby. It reopens near the ladder route up to the garage and saves you redoing the valve section on any later backtrack.

Opening the gate

Return to the panel and insert the second battery. A cutscene plays, the mechanism fully powers, the gate opens, and you are awarded the BSAA Container Key.

Step through and you are outside in East Raccoon City, near the BSAA containers and within reach of the gas station where you later pick up a Gas Can for the warehouse generator. The containers hold real loot and feed into challenges, so do not walk past them — they are also worth CP toward the postgame infinite ammo unlocks.

Troubleshooting

Common pitfalls

• Skipping File #51. It is the only thing in the level that tells you there are exactly two batteries and roughly where.
• Under-extending the bridge. If there is still a gap in the concrete platform, you stopped turning early. Go back and finish it.
• Sprinting through the flood. Trigger the water zombies in small groups and knife the downed ones.
• Forgetting the Sewage office shortcut door. Cheap to open, expensive to have skipped.

If the valve stops responding

I had one run where the Handwheel went unresponsive mid-turn. What fixed it: walk a few rooms away until an autosave icon appears, quit to the main menu, reload. If that fails, reload the checkpoint from the pause menu — it resets the valve state without costing much progress. The same trick works if enemies get stuck in geometry and combat will not end: leave the room and re-enter.

Speedrun route, once you know it

• Left ladder, catwalk, drop, ignore the truck loot, beeline northwest.
• Stagger only the zombies actually blocking your path; bottleneck the rest at the office door.
• Ceiling shortcut back, slot battery one immediately.
• Sewage door, grab the Handwheel, pre-aim the doorway, grenade the rush in one go.
• Fully extend the bridge, run past the stragglers, focus the brute’s weak points to stagger fast.
• Office, battery two, unlock the shortcut, straight back to the gate.

Gate to BSAA Container Key in under ten minutes on a clean run.

FAQ

How many garage batteries are there?

Two — one in the flooded garage lower level, one in the Sewage Facility. File #51 confirms it in-game.

What do you get for opening the gate?

The BSAA Container Key and access out into East Raccoon City.

Is the large infected fight avoidable?

Not practically — it spawns in the open area you must cross to reach the second battery’s office. Clearing the small enemies first is what makes it manageable. For the fights that genuinely are bosses, see our boss guide.

Has a patch changed this puzzle?

Nothing in the published notes through the current 1.3.1 build (25 June 2026) touches this area.

Bottom line

Garage battery = flooded lower office via the left ladder, ceiling shortcut back. Sewage battery = Handwheel, fully extend the bridge, kill the brute, east office. Both slotted = gate open, BSAA Container Key, East Raccoon City. It only feels like a wall because the game stacks vertical traversal, a valve puzzle and nasty enemy placement in one room.