If I have 2 Apex 300s joined with Hub A1 and add the SolarX for more PV input does the PV input get shared between the 2 Apex 300s or does only one of the Apex 300s get charged up?
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@flintoid49
Connecting the parallel charging cable allows for sharing the PV input, while using a standard charging cable can only charge a single Apex 300. However, from a performance perspective, it is recommended to use the standard charging cable.
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Hi Bluetti,
When using the Hub A1 with two or three APEX 300 units does it always split the AC power draw equally between them or does it try and balance the charge levels by pulling mainly from the highest charged unit? For example if the load is below 3800 watts would it be drawn from the Apex300 with 90% charge instead of the unit with 20% charge? Or is it pulling 1260 watts from each unit regardless of charge level
Is not constant power balancing required in order to maintain the full AC output otherwise when 1 unit runs out of power the output would drop to 7600 Watts and then 3800 Watts when 2 of the 3 units are out of power.
I was thinking it would be constantly transferring power between the units when possible in order to maintain a balance and as such connecting the SolarX 4k to 1 Apex would indirectly charge the other unit. Are you saying that is not happening? If so in an off grid setup with unbalanced solar inputs it might be difficult to maintain a constant high AC output.
Parallel charging cable. What cable is that? Do you have a part number? Does it plug into the SolarX and then split to go to each Apex 300 or what?
The Parallel charging cable has triple XT60 outputs instead of the expansion battery output. It’s designed for multiple power stations and is discussed in the manual link to manuals. It was an option on Indiegogo you could get the SolarX 4k with either cable type. Eventually it will go on sale on the website.
Thanks for the explanation. I think I understand now. So the parallel adapter cable plugs into the PV input port on the Apex and is limited to 60V 20A? In that case, instead of buying the Solar X I will just divide up my solar array into two inputs of roughly 40V and run one to each Apex. Does that make sense?
Confirmed by the technical team: Hub A1 does not intelligently allocate power between systems.
That’s fine, no problem. 
Yes that makes sense I will be doing similar at first and then getting the SolarX 4k in the future. It has the advantage of outputting close to the maximum voltage the Apex 300 can receive so can probably get close to 1100 watts per input and still have a spare XT60 for another power station. It also has the advantage of being able to charge multiple power stations from a single larger array which will mean less solar is wasted.