Hi everyone,
I recently purchased a Bluetti Apex 300 with a B500K expansion battery to help power our 50A Brinkley 5th wheel.
On our previous RV, I installed a large permanent solar/lithium/Victron system, but we traded that RV in and obviously took a big loss on that upgrade. For the Brinkley, I wanted a more portable and removable solution that I can easily take with me if we sell the RV later, which is why I chose the Apex 300 and B500K.
I’ve attached a picture showing how I plan to connect everything (shore power to Apex, Apex to RV, plus two portable solar suitcases).
I have a few questions about how the Apex will manage power in this setup:
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With the Apex connected as shown in the picture — and assuming the Apex/B500K batteries are sufficiently charged — will the Apex supply power to the RV from the batteries and solar instead of using grid power, even though it is still plugged into the grid?
At our seasonal campground we pay for electricity, so I’d like to run on solar and batteries as much as possible to reduce the electric bill. I know I can physically unplug the Apex from shore power, but if possible, I’d prefer not to constantly plug and unplug cables. -
In the same setup, if it’s a cloudy day and the batteries are getting low (not charging from solar), will the Apex automatically switch to grid power to run the RV loads and recharge the Apex/B500K at the same time?
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Does the Apex 300 support any form of load-sharing or “power assist” functionality similar to a Victron MultiPlus II? Specifically, can the Apex supplement a limited AC input source (e.g., 15A or 30A shore power) with battery output when load demand exceeds the programmed AC input limit?
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For the above scenarios, what operating mode and settings are recommended?
In particular:
- Proper front-panel voltage selector position (120V vs 240V)
- AC input priority / charging behavior (charging mode, AC input priority, etc.)
-Any recommended app settings that affect pass-through vs inverter-supplied output
I’d really appreciate any advice, input, or corrections if I’m misunderstanding how the Apex handles power flow.
Thanks in advance!
