This is the most up-to-date guidance based on Lithionics’ recommendations   

Power-Down / Power-Up Sequence

Yes—the order does matter.

To power down:

1. Turn off all loads (inverter, appliances, etc.)
2. Turn off the blue battery button
3. Turn off the main breaker

To power up:

1. Turn on the blue battery button
2. Turn on the main breaker

This sequence ensures the battery is awake and ready before the system attempts to draw power.

🔵 Blue Button = Battery ON / OFF (BMS Wake-Up)

• This button wakes up or puts the lithium battery’s internal “brain” (BMS) to sleep.
• When OFF, the battery is essentially asleep:
• It will not charge
• It will not discharge
• It protects itself during storage
• When ON, the battery is awake, healthy, and ready to safely supply or accept power.

Think of this like turning the engine on.

⚫ 250A Breaker = Connect / Disconnect the Van

• This breaker physically connects the battery to the rest of the van (inverter, lights, outlets, chargers, etc.).
• When OFF, the battery may be awake, but nothing in the van can use it.
• When ON, the van systems are allowed to draw power from the battery.

Think of this like putting the vehicle in gear.