This guide is designed to be practical: what the update changed, how to fix the labels so they match what they actually control, and how to reset your battery type and capacity so your charge readings are accurate again.

Important: The update doesn't break your van. Every button still controls exactly what it controlled before — only the labels and battery defaults have changed. Take five to ten minutes to fix it and your screen will be accurate again.

In this guide

• What the update actually changed
• How to tell if your van is affected
• Watch the walkthrough video
• How to rename a label (Part A)
• How to reset the battery type and capacity (Part B)
• After the fix: what to check
• When to call us for help
• Quick FAQs
• Fast post-update checklist

What the update actually changed

The Projecta update is mostly a cosmetic refresh of the TBB Power app, but it has two side-effects worth understanding.

1) Some on-screen labels reset to generic names. The Load page (and the shortcut row on your home screen) controls things like lights, pumps, USB and fans, the hot water service, and switches. After the update, some of those labels can show up as generic names like "Pump 1" or "Pump 2" — even though they're actually controlling something different. The function hasn't changed. Pressing the button still does the same job it did yesterday. Only the wording is off.

2) Battery type and capacity revert to defaults. The battery card at the top of the home screen reads off two settings: the type (AGM / GEL / LFP / WET) and the capacity in Ah. After the update, the type often defaults to AGM and the capacity may not match your installed bank. Your van runs a lithium (LFP) battery, so this needs to be corrected — otherwise your charge percentage, time-to-full estimate and low-battery warnings won't be accurate.

Why it matters: AGM and lithium batteries charge and discharge in completely different ways. If the app thinks you have AGM batteries when you actually have LFP, the percentage on your screen will lie to you. You might think you have plenty of charge when you don't, or stop charging early when there's still capacity left.

How to tell if your van is affected

Check three things on your home screen:

• The Battery card (top of the screen) — does it say LFP or AGM?
• The capacity number next to it — does it match your installed bank, or is it the wrong figure (or showing the default)?
• The bottom row of shortcut icons — does each name match what that button actually controls? Press one and see what comes on.

If the Battery card says AGM, or any of the shortcut labels are wrong, follow the steps below. It's a five to ten minute job.

Watch the walkthrough video

The fastest way through this is to watch the short walkthrough and follow along on your own app. Pause whenever you need to.

Projecta Update walkthrough — watch on YouTube

The written steps below cover the same ground if you'd rather work through it that way.

How to rename a label (Part A)

This is the safe part — anyone can do it, and there's no password required.

1. From the home screen, tap the cog icon (bottom right) to open Settings.
2. Open the Rename menu under Load. You'll see the full list of loads in your van (Dining Light, Bedroom Light, Pump 1, Pump 2, HWS, Switch A, Switch B, and so on).
3. Tap the load you want to rename. If a button labelled "Pump 1" is actually controlling your USB and fans, that's the one to tap.
4. Tap the pencil icon (top right of the screen) to open the rename dialog.
5. Type the correct name. Rules: up to 13 characters. Letters, numbers, hyphens, underscores and spaces are allowed.
6. Tap Confirm.
7. Important — also change the icon. Below the name there's a grid of icons. Pick the one that matches what the button actually controls (a power outlet icon for USB and fans, a light bulb for lighting, a flame for hot water, and so on). The icon is what you see at a glance on the home screen, so the rename is only half done without it.
8. Tap Confirm at the bottom of the screen to save.
9. Repeat for any other labels that don't match.

Tip: Don't try to figure out which load is which by guessing. Use this screen shot as your reference.

How to reset the battery type and capacity (Part B)

The battery settings live in the Engineering Settings menu, which is password-protected. The walkthrough video shows the password.

Note: If you're not comfortable in this menu, don't push on. Ring us and we'll talk you through it on a call. 

1. From the home screen, tap the cog icon → Settings.
2. Scroll to find the Engineering Settings entry.
3. Enter the password shown in the video. 1999 Tap Confirm.
4. Open the Battery section.
5. Tap Type. You'll see four options: AGM / GEL / LFP / WET. Select LFP. Tap Confirm.
6. Tap Capacity. Enter the correct Ah figure for your van's battery bank. (Check your build sheet, owner's manual, or call us if you're not sure.) Tap Confirm.
7. Go back to the home screen and check the Battery card — it should now read [your Ah] | LFP at the top.

After the fix: what to check

Before you stop, go back to the home screen and confirm four things:

• The Battery card reads the correct Ah figure with LFP next to it — not AGM.
• The four shortcut icons in the bottom row (the ones on the main Battery panel) match what they actually control.
• Each load on the Load page has the right name and the right icon.
• If your van is plugged in or on solar, the Time to Full estimate at the bottom of the Battery card looks sensible — not "0H 00Min" while the battery is still charging.

When to call us for help

Ring us — don't guess — if any of the following apply:

• You can't get into the Engineering Settings menu, or the password doesn't work.
• You're not sure what Ah figure to enter for your battery bank.
• One of your buttons does nothing when you press it (that's a different issue, not a label problem).
• The Battery card still shows wrong figures after you've reset Type and Capacity.
• You'd just rather have someone walk you through it.

Adrian Murley — Branch & Sales Manager, Melbourne
0420 326 673
adrian@marscampers.com.au

Quick FAQs

"Did the update break my van?"

No. The update is cosmetic. Every button on your screen still controls exactly what it controlled before. Only the labels and the battery defaults have changed.

"Why did the labels go wrong in the first place?"

The update reset some custom labels back to their generic factory names. The wiring underneath didn't change, so the names no longer match what each output actually controls.

"Do I have to do this, or can I leave it?"

The labels you can leave if you don't mind pressing buttons to find out what they do. The battery setting you should fix — if it's set to AGM when you actually have LFP, your charge percentage and time-to-full will be wrong every time you tow.

"What if I rename something to the wrong thing?"

No harm done — just rename it again. The rename is text and an icon only. It doesn't change what the button does.

"Will this happen again with the next update?"

It might. If you notice your battery settings or labels look off after a future update, the same fix applies — come back to this article.

"What's the engineering password?"

1999 You never really need to get into this section so moving forward you probably won't need to have it memorised

Fast post-update checklist

1. Open the TBB Power app and check the Battery card — does it say LFP with the correct Ah?
2. Press each of the four shortcut buttons on the home screen — do the names match what comes on?
3. Open the Load page and check every label and icon matches the actual output.
4. If anything's wrong: cog icon → Rename (for labels) or Engineering Settings → Battery (for type/capacity).
5. Rename the label, change the icon to match, hit Confirm.
6. Recheck the home screen. Time to Full should read sensibly while charging.
7. If anything's still off, call us — don't guess.