u/Mark_M2

I'm designing a small standalone solar carport system and I'm trying to determine whether the PECRON E3800LFP will do what I want before I buy it.

My planned setup:

PECRON E3800LFP

6 × JA Solar 440W panels = 2.64kW total

Panels configured as 3S + 3S, one string to each MPPT

Each string is roughly 99V Vmp / 118V Voc / 13A

VW ID.4

Standard 120V Level 1 EV charger, roughly 1.3–1.4kW

Completely standalone system — not connected to my house electrical system

I'm primarily interested in the E3800 because of its dual high-voltage MPPT inputs and 3,000W total PV input, rather than its battery capacity. The battery is basically a buffer for me; I'm trying to maximize solar pass-through to the EV.

Here's the scenario I'm trying to understand:

At 9 PM, it's dark and the E3800 is at 100%.

I plug the ID.4 into the E3800's AC output and let it charge at Level 1.

The car continues drawing ~1.3–1.4kW until the E3800 reaches its low-battery/low-voltage cutoff and shuts down the AC output.

The ID.4 obviously stops charging.

Then the E3800 sits overnight with the AC output off.

At sunrise, the six solar panels begin producing power.

My questions are:

Will the E3800 automatically wake up and begin charging its battery from the solar panels after it has shut down due to low battery?

Once it has recovered sufficiently from solar charging, will the AC output automatically turn back on?

If the AC output does NOT automatically restart, can the E3800's Automation feature be configured to turn the AC output back on based on something like:

battery SOC,

PV input power,

time of day,

or some combination?

Specifically, could I configure something like:

"When PV input exceeds X watts or battery reaches X%, turn AC output ON"?

Does the E3800's automation continue to work after the unit has completely shut down from low battery, or does somebody have to manually turn the unit/AC output back on?

Does the automation work without Internet/cloud connectivity, or does it require the Pecron app/cloud service?

What I'm ultimately trying to accomplish

I'd like this to happen automatically:

Night:

E3800 battery → Level 1 charger → ID.4

Battery gets low:

E3800 shuts down → ID.4 stops charging

Morning:

Solar → E3800 → battery begins recovering

Once sufficient solar is available:

Solar → ID.4 directly through pass-through, while excess solar → E3800 battery

In other words, I'm trying to use the E3800 primarily as a solar pass-through/buffer, rather than as a large energy-storage system.

If anyone actually owns an E3800 and has tested the low-battery → solar recovery → AC-output behavior, I'd especially appreciate firsthand experience. I'm much more interested in what the unit actually does than what the marketing material says.

Also, if someone has an E3600 and knows whether its automation capabilities differ from the E3800, I'd be interested in that comparison as well.

Thanks!