Recently, my EB3A was bricked a couple of times. After google the internet (and of cause some are from the BLUETTI community), found some tips to recover it before putting it to the junk yard. I would like to put down my experience for other EB3A user who might get into the same situation, and request BLUETTI to generate a “proper” fix (I can see there are firmware update everywhere).
Here below is my summarized experience on my EB3A:
- If it is undercharged (or over discharged) it will shutdown itself.
- To recover:
1.) remove all cables from EB3A.
2.) plug in DC input (12V), it will turn on, sometimes not, never mind, go to next step.
3.) plug in AC input, it sure will turn on, and shows 100% charged, input 0%, output 0%.
4.) wait, it might take a long time, until input shows 200+%, indicates it is charging.
5.) wait again, (still showing 100% charged), until input shows 0%, it is fully charged.
6.) the bricked EB3A is recovered.
- Issue: fix the 100% charged “error”, as it is very misleading in this situation. If not showing 0%, at least something 10% or 20%, it is more understandable in diagnosing.
- One more issue found, LED can’t be controlled from BLUETTI apps, and yet, if I press the button it shows the correct status in the apps.
SN EB3A2238008512394 ARM v2062.03 DSP v2056.10
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correction: the way input & output are shown as % should be W instead.
Hi @kaycekwan, Thank you for sharing; it seems you have compiled some solutions for handling over-discharge in the EB3A.
We recommend that customers charge their devices regularly and avoid long periods of inactivity, as this is crucial for battery maintenance.
Here are some suggestions for storing the unit.
- Never store the battery empty, even for only a few days. LiFePO4 batteries might be unrecoverable if stored empty.
- Storage temperature: 0-40℃. Don’t store the battery in a humid environment. Keep it away from fire as well.
- The optimal state of charge for long-term storage is 40-60%.
- The battery will slowly self-discharge over time. The battery should be recharged every 3-6 months.
- Don’t store the battery on its side. Keep it up straight.
- Don’t stack things on top of the unit. Don’t block the fans
When the device cannot power on due to over-discharge, we suggest using a slow 12V car charger to continuously charge and wake up the deeply sleeping battery.
If you still need assistance, please feel free to contact our customer service team at any time.
As for the issue with turning on the light via the app, our app department has already identified this problem and will release a new version on March 14th. Please upgrade and test again after that.
Hi @BLUETTI_CARE, thanks for the update. It is nice to hear there will be an update for the LED issue. How about the 100% charged issue? Will it be fixed, or it is “AS IS” in the case of over-discharged for EB3A?
Hi @kaycekwan, Thank you for getting back to us so quickly.
I appreciate your kind understanding and patience.
Regarding the issue of excessive discharge with the EB3A, please refer to the previous comment and use a car charger to wake up the battery. Additionally, please take care of the unit to avoid long periods of inactivity.
If you’re still not satisfied with the performance of the EB3A, feel free to contact customer support for further assistance.
Understood. I’ll see 100% charged!
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Hi @kaycekwan, We still haven’t gotten your answer, we wonder if this problem is resolved.
Please feel free to contact us if you need more help.