forum thread Posted by phoinix | Staff • 4d ago
Jun 16, 2025 8:09 AM
Item 1 of 4
Item 1 of 4
forum thread Posted by phoinix | Staff • 4d ago
Jun 16, 2025 8:09 AM
$448.99*: Anker SOLIX C1000 1056Wh 1800W LiFePO4 Portable Power Station at Amazon
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Our community has rated this post as helpful. If you agree, why not thank jhat21
The solar input current is limited to 10A if the voltage is below 33V. Common solar panels on the market are 18V, and 20V. Their Voc are 20V to 24V. At this voltage, you will be limited to around 180W to 200W solar input. If you wire two panels in series, you create a system 36V to 40V which allows max charging at about 450W to 500W. In realistic conditions (dust, angle of sunlight, heat), the voltage may be 3V to 5V lower. 37V 11.8A 435W is a typical charging rate for me with a 40V 15A system: 2x 200W 20V 10A panels in series, parallel with 2x 100W 20V 5A panels in series.
I've tested a 62V Voc system. I wouldn't recommend it. It does charge because the voltage drops to 50V to 60V under load. I only got about 455W charge with the 60V 10A system which wasn't much more than the 435W I got wiring my panels at 40V 15A. The power station has over-voltage protection, so it beeps a warning and shuts off the charger as the battery gets close to full and voltage exceeds 60V. But the charger won't turn back on automatically. You have to be careful to close all the panels before you disconnect the solar plug because the high voltage can arc, scorch the plug black and melt plastic.
A couple things that are not advertised. The charge controller limits charge rate when the battery is below 20%. At about 35V, the current is limited to about 6.6A for a total of 230 Watts. Then the charge power gradually rises with battery percentage. The highest charge I've gotten is 500W for a brief moment when a cloud rolled past on a bright day, causing the current to spike up. When a full battery is being used and connected to solar panels, the charger turns off at 100% and turns back on at 99% charging at full strength. However, it seems after a few cycles of this, the controller will try to limit charging to match the output wattage and stay on. The battery percentage loses some accuracy while this is happening, it will say 97% when it's actually just under 100% but it is only temporary until the battery is fully charged again.
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