How to Get 5 Battery Casings & Astronomer Quest in Fisch

If you’re working on Astronomer Vega’s quest in Fisch and you’ve reached the part where you need five Battery Casings, the good news is that the actual process is pretty simple. The annoying part is getting the five items because they have a relatively low catch chance.

You’ll need to unlock access to the mineshaft on Sunstone Island, fish inside it, and keep going until you’ve collected all five Battery Casings. Here’s exactly how the process works.

How to Get 5 Battery Casings & Astronomer Vega’s Quest in Fisch

The quest requires you to collect 5 Battery Casings for Astronomer Vega.

Before you can start farming them, however, you need access to the mineshaft.

Your first stop is Merlin on Sunstone Island.

If you’ve already given Merlin all of the required shards, you’ll be able to choose the option that gives you access to the mine shaft.

Select it and enter the mineshaft.

If you haven’t unlocked the mineshaft yet, you’ll need to finish the required part of Merlin’s progression before you can start looking for Battery Casings.

Where to Get Battery Casings in Fisch

Once you’re inside the mineshaft, start fishing.

This is the location where you can catch Battery Casings for Astronomer Vega’s quest.

There’s no complicated interaction or special item you need to use. Just fish inside the mineshaft and keep catching until the Battery Casings start appearing.

The important thing is to make sure you’re fishing inside the mineshaft, rather than somewhere else on Sunstone Island.

Battery Casing Drop Chance

Battery Casings have approximately a 1 in 100 chance of being caught.

That’s roughly a 1% chance per catch.

Because of that, don’t be surprised if you have to spend a decent amount of time fishing before you get all five.

You might get lucky and find several relatively quickly, or you could have a much longer dry streak. The best thing you can do is simply keep fishing rather than constantly changing locations.

How Many Battery Casings Do You Need?

For Astronomer Vega’s quest, you need a total of:

5 Battery Casings

Once you catch one, continue fishing.

Don’t head back to Vega after every casing. It’s much more efficient to stay in the mineshaft and keep farming until you’ve collected all five.

Your goal is simply to reach:

5/5 Battery Casings

Return to Astronomer Vega

Once you’ve finally collected all five Battery Casings, you can leave the mineshaft and return to Astronomer Vega.

Give Vega the five Battery Casings to complete the quest.

That’s all there is to it.

The difficult part isn’t the quest itself; it’s really just getting through the fishing grind because of the roughly 1% catch chance.

Battery Casing Quest – Quick Steps

If you just want the short version:

  1. Go to Sunstone Island.
  2. Find Merlin.
  3. Make sure you’ve already given Merlin the required shards.
  4. Choose the option to gain access to the mine shaft.
  5. Enter the mineshaft.
  6. Start fishing inside.
  7. Keep fishing for Battery Casings.
  8. Collect all 5 Battery Casings.
  9. Return to Astronomer Vega.
  10. Hand over the five Battery Casings to complete the A Battery Dilemma quest.

Final Thoughts

This quest is pretty straightforward once the mineshaft is unlocked. The only part that can test your patience is the 1-in-100 Battery Casing catch chance, so be prepared to spend some time fishing.

Don’t leave the mineshaft after getting one or two. Stay there and work toward all five, then make the trip back to Astronomer Vega once you’ve got the complete set.

Once you hand over the 5 Battery Casings, the A Battery Dilemma quest is complete.