Known issue

YUKA mini 800 will not charge after an update: three owners, one workaround

Three independent YUKA owners lost charging around an update cycle: one on firmware 1.30.29.24 with the battery stuck at 0%, one whose battery drops to 0% mid-task and never recharges, one whose mower 'refuses to charge properly' alongside a cluster of other things that broke. One of them got charging back by unplugging the battery.

Status Open

Models: YUKA mini 800 (two reports, one naming the 2025 model), plus a third YUKA owner who does not name their model
First reported: 11 Sep 2026
Last updated: 07 Nov 2026
Affects: Robot body — not the app

YUKA mini 800 (two reports, one naming the 2025 model), plus a third YUKA owner who does not name their modelFirst reported 11 Sep 2026Details

Models: YUKA mini 800 (two reports, one naming the 2025 model), plus a third YUKA owner who does not name their model
First reported: 11 Sep 2026
Last updated: 07 Nov 2026
Affects: Robot body — not the app

What to do next

Confirm the mower reaches the dock but does not charge. A mower that never docks is a different fault. See error 1200 and the stuck-contact-pins page instead.

More about this step

Applies when: charging stopped around an update and the dock itself looks normal: green light on, contacts clean, mower still driving onto it.

Worked if: you are on the right page for your fault rather than the nearest one.

Didn't work? Next: step 2 — Open the battery cover, unplug the battery for 10-20 seconds,...

Method: this page's own opening instruction
Open the battery cover, unplug the battery for 10-20 seconds, plug it back in. Then put the mower on the charger. If the battery is already flat at 0%, the other reported trick is to sit it on the charger for two minutes, off for two minutes, and repeat about half a dozen times until charging starts.

Stop and get help if
the charger itself is not alive: the flat-battery trick assumes it is, and neither trick is a repair.

More about this step

Applies when: the dock is normal and the mower still will not charge.

Worked if: charging resumes. This is the only fix anyone in these threads found, and it treats the symptom rather than the cause.

Didn't work? Next: step 3 — Ask Mammotion support and send logs. Send them from a charger...

Method: one owner who used it twice, and a LUBA 2 owner's flat-battery variant, both quoted here
Ask Mammotion support and send logs. Send them from a charger that accepts the mower but never raises the battery percentage. Mammotion engaged with all three of these cases and closed none. Tell us your firmware version as well: a version-confirmed report is what would turn this into a fix, and note that a replacement battery was declined at $200+ and cannot be found for sale.

More about this step

Applies when: the workaround is becoming routine, or you want the actual fault found.

Worked if: the missing evidence (logs and a version) is in the case instead of absent.

Method: this page's own callout and its battery-replacement report

On this page

What to do next
What owners are reporting
The one thing that got charging back
The part that is not a bug at all
Sources

Before you start: if your YUKA has stopped charging after an update and the dock itself looks normal (green light on, contacts clean, mower still drives onto it), the reports below are the closest match we have. One owner got charging back by disconnecting the battery for a few seconds. That is the only fix anyone in these threads found, and it is a workaround rather than a repair.

What owners are reporting

Three independent YUKA owners hit charging failures close together in September 2026, and none of them had a version-confirmed cause to point at:

A YUKA mini 800 (2025) on firmware 1.30.29.24 could no longer charge at all, not even when placed on the station by hand, for about a week. Its battery had reached 0%, which left it unable to take the 1.30.29.26 update that might have fixed it. Mammotion support told the owner the case was being analysed. That is what a now-removed post said; the thread's surviving replies include a Mammotion representative asking the owner for the case ID¹.
A second YUKA owner described a longer-running pattern: the battery would drop to 0% when a task was interrupted and the mower was driven manually, then the mower would return to the dock and never recharge. Later the same mower drained during a mow and again failed to recharge. Mammotion asked for logs and never came back with a cause².
A third owner, on a YUKA mini 800 running the latest update, reported that the mower "refuses to charge properly" as part of a wider set of faults: getting stuck in open lawn, driving into objects, and needing supervision every few minutes. Eight replies followed, several from owners describing the same drop in stability since updating, one summing it up as "night and day in stability" compared with four months earlier³.

The one thing that got charging back

The second owner found a workaround that worked twice: open the battery cover, unplug the battery for 10-20 seconds, plug it back in, and put the mower on the charger. Charging resumed immediately each time, and the fault returned a month or two later, so it treats the symptom rather than the cause².

In the same thread a LUBA 2 owner offered a different revival trick for a mower already down to 0%: sit it on the charger for a couple of minutes, take it off for a couple of minutes, and repeat about half a dozen times until charging starts. They flagged the obvious caveat: that assumes the charger itself is alive⁴.

Two things we can't confirm: no single firmware version is shared across these reports (one names 1.30.29.24, the others only "the latest update"), so we can't say a firmware update broke charging. And no owner above got a hardware diagnosis. Mammotion engaged with each case and closed none of them. If you have logs from a charger that accepts the mower but never raises the battery percentage, that is the evidence this page is missing.

The part that is not a bug at all

One owner asked Mammotion for a replacement battery after the workaround became routine. Mammotion declined and quoted $200+ to buy one, and the owner reported being unable to find the battery for sale anywhere, then asked whether another model's battery could be used instead². The thread has no answer to that, and it is worth knowing before you decide a battery fault is something you can fix cheaply.

If you're hitting this: confirm the mower reaches the dock but does not charge. A mower that never docks is a different fault, covered by error 1200 (recharge failed) and stuck charging contacts. If yours does dock and still will not charge, try the battery disconnect above and tell us your firmware version: a version-confirmed report is what turns this page into a fix. Let us know.

3 reports from 3 threads. Manufacturer has acknowledged this. This counts the public reports we found. It isn't an estimate of how common the issue is among all owners.

Sources

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