Charging Via Secondary Alternator; Charging Via Solar Power; Recovery From A Zero State-Of-Charge (Soc) - Airstream TOMMY BAHAMA INTERSTATE 19 2024 Owner's Manual

Interior
In some older parks and other locations where three-
pronged outlets are not available, certain precautions
to ensure proper grounding and polarity must be taken�
These precautions are listed below:
1� Attach the three-pronged plug to a two-pronged
adapter� The third conductor line of this adapter
has a short wire lead that must be grounded�
2� For proper grounding, connect the short ground
lead to a grounded outlet box or to a cold water
pipe� When no water pipe is available, drive a
metal rod two feet into the ground and attach the
ground lug to it, thus providing the unit with proper
grounding�
NOTE
The Flex Pack (house battery) must be below
approximately 96% SOC for shoreline charging.
NOTE
When the three-pronged plug can be used,
there will be no problems with proper polarity or
grounding with a properly-wired shoreline outlet.
RV owners are familiar with 30A outlets, so they may
want to install a 30A outlet at their home� Unless this
outlet is specifically installed as an RV outlet, the
electrician may mistakenly wire the outlet to be 240
VAC, which is typically used for home appliances,
such as electric dryers� RV outlets are 30A 120 VAC,
but home 30A outlets are commonly 240 VAC� Do not
connect to a 240 VAC outlet�
Do not connect the Volta System to a 240 VAC
outlet. Connecting to a 240 VAC outlet may result
in permanent damage not covered by warranty.

Charging via Secondary Alternator

Your Airstream comes standard with a powerful 58
volt secondary alternator that can charge the house
battery simply by driving� In fact, it is the fastest way to
charge your battery� While driving, the system actively
recharges the battery with as much as a 30% recharge
after just 20 minutes, and a full charge is achieved in
approximately 2 hours�
1� Turn ON the Battery Power Pushbutton switch
(battery disconnect)�
2� Drive the vehicle at approximately 35 MPH to
achieve and maintain at least 1500 RPM� If 1500
RPM is not maintained, the Battery Management
5-18
WARNING
System (BMS) sends a signal to turn off the
alternator until the BMS senses it is appropriate to
turn it back on�
NOTE
The Flex Pack (house battery) must be below 85%
SOC for alternator charging.
Do not park and rev the engine to hold 1500 RPM
as it could damage the engine and void your
Mercedes-Benz engine warranty.

Charging via Solar Power

The solar charging system is primarily used to help
maintain a charge between shoreline or alternator
charging� The solar system is automated and does not
require input from the user� For more information about
the solar system; see Solar System on page 5-12

Recovery from a Zero State-of-Charge (SOC)

The Battery Management System (BMS) shuts down
the Volta System if the house battery reaches a very
low limit or 0% SOC� When this occurs the Volta On/Off
pushbutton LED flashes yellow, the SOC is red, and
the system shuts down�
To Recover using Shoreline Power:
1� Turn OFF the Volta System; if not already off�
2� Connect to shoreline power�
3� Select the appropriate charge rate;
Charger Screen on page 5-16
4� Charge the system to at least 20% SOC before
returning to normal operation and use�
5� Fully charge the system as soon as possible�
To Recover using Alternator Power:
1� Turn ON the Battery Power Pushbutton switch
(battery disconnect); if not already on�
2� Drive the vehicle, at approximately 35 MPH to
achieve and maintain at least 1500 RPM to charge
the system until the SOC indicates at least 20%
before returning to normal operation and use�
3� Fully charge the system as soon as possible�
2024 Tommy Bahama Interstate 19
WARNING
see Inverter/