So I had the missalign overheat error during a mow. Stopped the mow and tried to plug it in directly still will not change. The battery is reporting 30C in the app. so it is not a heat problem. I have also tried restrarting the core and unplugging the battery twice. nothing i do will get it to start charging. What else can I try.
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If your battery temp is 30C then you have another issue. Have you opened a ticket?
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not yet just happened. but I was getting the miss aligned and temp error like others were getting.
I would get a ticket open so they can check it out for you
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Thank you for the update. It does seem that your case is different from the usual overheating misalignment issue and requires further investigation. Our support team is currently requesting some additional information through your support ticket so we can continue looking into this. We truly appreciate your cooperation and patience as we work to resolve the issue for you.
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I have responeded to the ticket but now my battery is at 0% and still will not charge on the pad or plugged in.
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Have you made sure your battery is connected tightly into the core. I’ve seen mine sometimes not be fully seated because I was in a hurry and didn’t push hard enough. Definitely sounds like a hardware issue if it is. You could try disconnecting it for 5 mins and then see if it registers properly at that point.
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If it won’t change plugged in or on the charger, I suspect a warranty battery replacement is in your future.
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So today I decided to do a little experiment.
I had Yarbo out mowing the grass all afternoon. The high temp was 83 degrees and sunny.
After a few hours of mowing, the battery was only 42 degrees C when it went back to charge.
I decided to watch and see what happens when the battery starts charging. My dock is under one of the Amazon dog tent thingies, so not in the direct sun.
Suffice it to say, as the battery charged, the temp went all the way up to 50 degrees, and I got the message in the app saying the battery was overheated.
I then went and REMOVED the battery cover to see what would happen. You could feel the heat inside the battery compartment when I removed the cover.
It’s been maybe an hour, and the battery is down to 48 degrees now, and I see that it’s continuing to charge. I surmise that if I had removed the cover as soon as Yarbo docked, it might not have overheated at all. Tomorrow I plan to test that.
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Keep us posted…
I’ve tried it. It helps minimally. What made the biggest difference was the lid off and a fan blowing on it. The heat needs to get moved out of that battery coffin.
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My experience indicates that the process of charging is that which heats the battery. Just mowing, even on a hot day, usually will not heat the battery to excess
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Yes. I See 45C at the end of mow regularly. That leaves very little headroom for charging heat.
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Too true.
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I too am regularly running into overheating issues during the day when Yarbo comes back to charge. I did an experiment the last week in order to try and start the day with a cool battery. I stopped the wireless charger at 2 AM with a 100% charged battery.
The end result is that Yarbo loses its charge way too fast while doing nothing. at 7:30 AM the battery is already down to 80 %!
I’d like for Yarbo to explain why a rover in standby mode sitting on its dock consumes so much energy doing nothing. If it is due to having to constantly connect with the servers and be ready for the user to start mowing in the app, then Yarbo should program a mode where we can set the rover to go into deep sleep with little to no battery drain, and wake up on its own at a predetermined time to start work.
This will allow Yarbo to start the day with a battery temperature equal to the outside temp rather than the pre-heated situation we are in today.
I fail to see how stopping the charge accomplishes anything. It stops charging not too long after hitting 100% and just trickle feeds power to the rover to keep things running. The battery should be the same temp either way by the time you start your plan. Now if it was still dumping full wattage into the battery close to the time you are ready to start the plan, then yes the battery temp would be elevated.
As for the 80%, are you leaving the app open or anything that would cause this sort of drain? After 5-10mins it should go to sleep. However, if you leave the app open, it won’t. Also, if it’s not great GPS signal at your dock, it could be constantly searching for GPS which will increase your power consumption. I definitely see this level of drain when I park my rover in the garage overnight, leave it on, and do not charge connect the wired charger.
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I have seen this exact behavior once. It would fully charge to 100% then immediately started discharging while sitting idle on the dock. I restarted the core, redocked and haven’t seen it again.
Added: I restarted the dock as well.
2nd Add. I missed that charging was MANUALLY stopped. Disregard the above.
@bryan.wheeler if I do not stop the charge then the temperature of the battery is 10 degrees C higher in the morning. That’s the whole point. For Yarbo to consume 20% in a few hours means that it needs more than trickle charging to stay at 100%, which also means that it is needlessly warming up the battery while charging.
I’m sure there is a trade off of keeping enough systems alive to be ready to go in short order and trying to keep the battery charged but below temp.
If Yarbo is working off of a schedule it could shut down more systems and know when to bring them back online in time for the scheduled event.
I’m not saying that it does that…. But it could.
AFAIK it already does this. That’s why the GPS takes a little while to wake up. It also wakes up about 10 mins before a scheduled job.
10 degrees for trickle charging along with 20% drain in a few hours doesn’t sound quite right to me.
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