frontpagephoinix | Staff posted Yesterday 11:29 AM
Item 1 of 3
Item 1 of 3
frontpagephoinix | Staff posted Yesterday 11:29 AM
BLUETTI AC180 1152Wh 1800W LiFePO4 Portable Power Station
+ Free Shipping$399
$499
20% offAmazon
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I use it very infrequently for shed lighting. Most of the time it sits at the recommended 40–60% state of charge. If a storm is coming, I charge it to 100%. The problem is that the state of charge reporting feels unreliable and requires recalibration multiple times a year.
For example, if I start charging the unit at around 65%, it will jump to 100% within minutes. When I discharge it, it drops quickly to 1% and then continues running at 1% for quite a while. This essentially forces a calibration cycle.
I have seen similar, and in some ways worse, behavior with my smaller EB3A. After fully discharging it, it sometimes reports 100% and refuses to charge. The only workaround is to leave it plugged into AC power with the outputs enabled and wait for parasitic draw to bring it down to 99% so charging is allowed. Even then, it may show 99% and take another two hours to reach 100%.
A quick search shows these state of charge issues are not uncommon with Bluetti products. While I understand that battery backup systems in general can have quirks, other manufacturers seem to handle this better based on what I have read. I probably would not choose Bluetti again in the future.
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