The MPPT readings on my phone has gone off the charges

Had something similar crop up on my Victron setup last month — woke up to VictronConnect showing absolutely wild readings, like the MPPT had suddenly become capable of powering a small country. The scale had gone completely haywire, displaying values so far outside any realistic range that the actual data was basically a flat line sat in the middle of the graph, completely unreadable.

Worth going through a few things before reinstalling the app:

1. Disconnect and reconnect the Bluetooth pairing — sometimes the data stream gets corrupted mid-sync and the app just runs with whatever garbage values it receives
2. Check the firmware on the MPPT itself — I was running an older version on my SmartSolar 100/30 and a firmware update via VictronConnect sorted a display glitch (not identical to yours, but similar flavour)
3. Clear the app cache rather than doing a full reinstall first — less nuclear option, sometimes does the job
4. Check if the readings are wrong in VRM portal as well — if the portal looks fine but the app is mental, it's almost certainly a local app/Bluetooth issue rather than anything wrong with the controller itself

In my case it turned out to be a dodgy Bluetooth handshake after my phone's OS had updated overnight and apparently decided to renegotiate how it handled BLE connections. Full app reinstall did eventually fix it, but the cache clear alone didn't.

Anyone else seen this after a phone OS update specifically? Curious whether there's a pattern there, because I've seen a few people mention similar issues cropping up out of nowhere.

@Tommo classic VictronConnect gremlin — I've had this on my boat setup. Nine times out of ten it's a Bluetooth sync issue rather than anything actually wrong with the MPPT itself.

Try this:

1. Force-close VictronConnect completely
2. Forget the device in your phone's Bluetooth settings
3. Re-pair from scratch

If the readings are still wild after a fresh connection, check your battery voltage sensor wiring — a dodgy connection there can make the MPPT report nonsense figures while actually operating fine.

Also worth checking which firmware your MPPT is on. Victron pushed an update a while back that fixed some reporting bugs. Connect via the app (once re-paired) and it'll flag if there's an update waiting.

What model MPPT are you running?

@Tommo this took me back to a dark morning in my shepherd's hut last February — frost on the windows, coffee not yet brewed, and my phone insisting the Victron SmartSolar was pulling 847W from four 100W panels in near-darkness.

Turned out the historical data had corrupted and was bleeding into the live display. The fix that sorted mine: completely remove the device from VictronConnect, forget it in your phone's Bluetooth settings, then re-pair fresh.

Also worth checking whether your firmware is current — there was a particular version causing phantom readings that Victron quietly patched. Connect via VE.Direct to a laptop and run VictronConnect desktop to update if needed; sometimes the phone app itself is the weak link rather than the MPPT hardware.

Hardware was fine throughout mine. Readings were fiction, controller was doing its job perfectly.

@Tommo ooh this rings a bell! Had almost exactly this on my narrowboat last summer — the Victron MPPT was showing something like 847W from a 200W panel array 😂 Turned out my phone's cached data was wildly out of sync after a software update to VictronConnect.

Have you tried completely clearing the app cache rather than just closing and reopening? On Android it's buried in app settings. Also worth checking whether the firmware on the MPPT itself needs updating — I found mine was several versions behind and the two weren't talking properly.

@DODQueen makes a fair point about Bluetooth, but in my case it was definitely the app rather than the connection itself. Would be curious whether yours is Android or iOS — seemed to be more of an Android issue from what I've read on here?

@Tommo had this exact thing happen on my Explorer 2000 Pro's companion app last winter — not Victron but same sort of phantom readings that made absolutely no sense. Worth checking whether your phone's Bluetooth had partially dropped and reconnected mid-read, because that seems to cause corrupted data packets that the app just displays rather than discards.

Quick thing to try before anything else: force-close VictronConnect completely, forget the device in your phone's Bluetooth settings, then re-pair fresh. Sorted it for a mate of mine running a similar MPPT setup on his static caravan. Also worth checking whether a firmware update is pending on the controller itself — Victron pushed a few fixes last year that addressed some dodgy reporting behaviour specifically. What firmware version are you currently on?

Seen this on my narrowboat setup too. Before assuming the MPPT itself is faulty, check a few things methodically:

1. Force-close VictronConnect and reconnect via Bluetooth — corrupted cached data throws up phantom readings surprisingly often
2. Check your VE.Direct or SmartShunt wiring for any loose connections; a floating signal wire can feed garbage data to the app
3. Firmware — what version is the MPPT running? There were known display bugs in older firmware that Victron quietly patched

Worth also checking whether the wild readings only appear in the app or if they're replicated in VRM portal too. If VRM looks sane but the app doesn't, it's almost certainly a Bluetooth/app sync issue rather than anything hardware-related.

What model MPPT is it, @Tommo? The SmartSolar range and the older BlueSolar behave differently in this regard.