Battery consumption awareness

Stay in power
Battery consumption awareness
This brochure helps you get the most out of your truck
batteries. It includes easy-to-follow tips that maximise
battery life and minimise the risk of unplanned stops.
Five ways to prolong
battery lifetime
A switched-off engine is the real challenge for a battery. Consumers and
systems need power, and if too much battery capacity is used, the truck
might not start. Minimise that risk by doing the five things below.
RECHARGE YOUR BATTERY OFTEN.
You must top charge your battery at least
every three weeks. But do it whenever there’s
an opportunity, such as on overnight stops
or weekend breaks. A top charged battery
cuts fuel consumption and makes the
vehicle more reliable.
TURN OFF CONSUMERS WHEN NOT
REQUIRED. Everything from the fridge to
charging your phone drains the battery when
the engine is switched off. Use consumers
wisely, especially during long stops.
KEEP AN EYE ON THE BATTERY STATUS
INDICATIONS. The driver display shows status
and current usage, and sends out alerts if for
instance there’s a low state of charge. Follow
this advice – it prolongs battery lifetime.
CHOOSE THE RIGHT VEHICLE MODE
DURING STOPS:
• Parking Mode is always the preferred choice
when no active use of cab features is needed
• If you need access to cab features, choose
Living Mode, but make sure to activate Parking
Mode as soon as you’re finished
• Accessory Mode adds more possibilities to
use cab features. Use this restrictively though
in order not to drain the batteries
• Remember to be economical and turn off
consumers that aren’t needed!
BE EXTRA CAREFUL IN THE WINTER.
A temperature drop from +20°C to -18°C
cuts battery capacity by 50%. Pay extra
attention to the battery’s condition and the
preventive handling of electrical consumers
when the vehicle isn’t in operation.
For a closer look at these, please turn the page
Get to know
your consumers
Consumers require power. Below you can see how some of the most popular ones affect
battery performance. If you use the fridge, cooler/heater, lights and entertainment for ten
hours, they might require 170 Ah. As a 225Ah battery can only use 50% of its energy before
lifetime is reduced this might drain the battery so you can’t start the truck.
THE FRIDGE. It consumes
1-3Ah per hour (more if it’s
hot outside). If left on over the
weekend, it drains more than
50% of a fully charged battery.
If the battery was only partially
charged, your truck will be
deeply discharged due to the
consumption of the fridge.
I-PARK COOLER. It consumes
10-30Ah per hour and shuts
off when the state of charge is
45%. If it’s 30°C outside, you
can use it for 8-10 hours if you
put the cabin temperature to
26°C. But if you want 20°C,
Always set the cab temperature
to a moderate level compared
to the outside temperature.
PARKING HEATER. This one
uses 4-10Ah per hour. Together
with the I-Park Cooler, this is the
major consumer during longer
stops. As it’s normally used in
cold temperatures, you must
keep in mind that the battery’s
energy level is already substantially lower. For instance, you
only have 50% capacity at an
outside temperature of -18°C.
LIGHTS AND ENTERTAINMENT.
These are heavy consumers.
Interior lights require approximately
5Ah per hour. And if you plug your
TV and audio system into the AUX
input to watch movies or use your
laptop, you use another 4-5Ah
per hour.
Some practical consumer advice
WHEN THE ENGINE IS ON
• Charge external consumers (phones, laptops etc.)
in a safe way
• Plan the cab temperature, set it at a moderate level
compared to the outside temperature (i.e. 26°C if 30ºC
outside). Pre-cool your cab by idling the engine and using
the normal climate system before you park the vehicle
and turn on I-Park Cooler
WHEN THE ENGINE IS OFF
• Shut down unnecessary consumers, as you’re only using
up battery energy
• If you use I-Park Cooler, adjust to a moderate level as the
battery drains quicker with a bigger difference between
cab and outside temperatures
• Turn off interior lights when they’re not needed, they use
the same amount of energy as a parking heater
• Avoid, for example, spot lamps, trailer lamps, extra side
lamps and parking lights (especially non-LED)
AVOID EXTERNAL POWER CONVERTERS
These have a consumption of 1-2 A/h, even when nothing is
connected. If you must use them, disconnect them immediately
when not used.
Choose the right Vehicle Mode
There are three non-driving modes. Living and Accessory should only be used when
access to cab features is needed. When no active use of cab features is needed,
choose Parking Mode.
Vehicle Mode
Consumption/h
Time before alerts
when it’s +20°C
(capacity 100%)
Time before alerts
when it’s –18°C
(capacity 50%)
Functions
Accessory
10.9-28.5A
3-9 h
1-4 h
Living + Climate, Window lift, Wipe &
Wash, Mirror defrost, Mirror adjustment,
Transport mgmt, Coffee maker.
Living
4.5-16.5A
6-22 h
3-11 h
Parking + Lock, Interior light, Audio,
Fridge, Security, Comfort and Recreation.
Parking
0.03-0.5A
168-1000 h
(1-6 weeks)
96-500 h
(4 days-3 weeks)
Un-lock, Remote Key Entry, Alarm,
Parking heater, Parking cooler,
Park light.
For a full explanation of the functions of each mode, please consult your local Volvo dealer.
Save the most power – go to Parking Mode
Putting your vehicle into Parking Mode shuts off functions like the fridge, comfort and
recreation, interior light and audio. This saves a lot of battery capacity. If you’re away
from your truck, this is highly recommended.
HOW TO ENTER PARKING MODE.
There are three ways to enter
Parking Mode, depending on variant
specification:
• Automatically by a timer (see Delay time
between Living and Parking Mode)
• Manually* by turning the main switch
(red main switch on the battery box or
fender stay)
• Manually* by pressing the lock button on
your key fob twice (the direction indicators will give a long flash followed by four
short flashes to indicate Parking Mode)
DELAY TIME BETWEEN LIVING AND
PARKING MODE.
The Living to Parking timer function
is active on all trucks and it will
automatically put your vehicle into
Parking Mode after a preset timer value.
The default value is set to 12h, but the
timer value can be reduced to optimize
battery lifetime.
* Consult your local dealer or workshop if
you’re not sure what kind of setup your
specific vehicle is equipped with.
* Consult your local dealer or workshop
to find the most suitable timer value for
your operating profile.
The timer starts counting when you either:
• Unlock the doors
• Put the ignition key in the “0” position
DO YOU NEED THE FRIDGE?
A fridge consumes up to 15Ah on a fivehour stop. This takes away approximately
15% of the battery's energy.
If you don’t need the fridge it’s recommended to go to Parking Mode whenever
possible. If you choose to run the fridge
during longer breaks, just let the vehicle
go to Parking Mode automatically via the
Living to Parking timer function.
The fridge timer function is active on all
trucks and it will automatically shut down
the fridge after a preset timer value.
The default value is set to 45h, but the
timer value can be reduced to optimize
battery lifetime.
* Consult your local dealer or workshop
to find the most suitable timer value for
your operating profile
Keep an eye on Battery
Status Indications
The state of the battery is shown in the Driver Display. Learn to understand
this information and act on it. It minimises the risk of battery problems.
THE BATTERY STATUS WINDOW
shows the status. On the bottom right
you see the current usage (-8 A). This
indicates what your consumers use.
-8 A
25,2 V
A TIP: Set this window as default
in your favourite menu.
THE STATUS BAR shows how much
energy you have left. When the battery
temperature decreases, so does the
maximum battery energy capacity.
The energy
reserve needed
to crank
The state of
charge (each
box = 10–15%)
Battery level low. Risk for
premature battery ageing.
How much
your batteries
can still be
charged
Loss of
capacity
due to cold
weather
HOW TO ACT ON A PRE-ALERT WARNING
When the battery capacity falls to 50%, its lifetime is reduced. At 45%, there’s a Pre-Alert.
If this happens, please:
• Charge the battery to prolong lifetime and
ensure that the vehicle starts
• If that’s not possible, shut down as many
consumers as possible
START ENGINE
Battery level critical.
Recharge immediately.
HOW TO ACT ON AN ALERT WARNING
This indicates that the battery energy level is
critical, i.e. below 35% of its capacity. If this
happens you must immediately charge
the batteries.
• If you’re staying in the vehicle, shut off interior/
exterior lights, parking cooler, entertainment,
chargers, the fridge and then charge the
batteries
• If you’re not staying in the vehicle, force
the truck into Parking Mode and charge
the batteries
If not, you might face a breakdown due to insufficient battery power for cranking the engine.
Charging and
maintenance tips
The key to a long and reliable battery life is frequent charging and
proper maintenance. Here are a few things to remember.
TOP CHARGE AT LEAST EVERY THIRD WEEK. A battery
should be recharged whenever possible, and you should
use an external charger (min 20A). If you use an alternator,
you can only top charge (up to 90%) if it’s at least +25°C
outside, due to regulations concerning charging voltage
(max 28.8V). The battery chargers we recommend have
intelligent charge controls and temperature compensation.
This ensures higher voltage charges and helps maximise
battery lifetime.
DURING LONGER STOPS – PLUG IN A BATTERY
CHARGER.
Examples of stop scenarios:
• The driver spends the night/weekend in the cab:
If possible, plug in a battery charger (min 20A).
• The driver leaves the truck for the night/weekend:
Always plug in a battery charger (min 20A).
This gives you fully charged batteries and saves fuel
since you won’t use the alternator to charge the batteries
while driving.
N.B. Charging by alternator uses approximately 1.5 litres
of diesel (€2) as fuel consumption increases by 1.5%
during charging.
BEWARE OF COLD WEATHER.
This harms battery capacity and
chargeability. A 225Ah battery only
has 110Ah left at -18°C. Please
note that you get an Alert warning
at 35% of 225 Ah, i.e. at 80Ah.
This means that you only have
30Ah for on-board living in this
situation as 80Ah is required
to start the engine. Therefore,
only use a minimal number of
consumers and charge even
more often in cold temperatures.
Some things to note:
• At 0°C, you get warning messages, even with a fully
working battery
• Below 0°C, chargeability is reduced by up to 94%
• At -15°C, the battery indication is shut off to save
battery energy
• Full capacity and chargeability are restored at +25°C
KEEP EVERYTHING CLEAN. To guarantee a good
connection between battery and the B+ cable, make
sure to keep them clean.
Three smart accessories
SOME TYPES OF TRANSPORTS are extra demanding. And due
to unforeseen events, you might need to use more battery power
than planned. It’s wise to have these three installed in your vehicle.
Volvo Battery Charger
This helps you charge the batteries and
guarantees that a top charge can be
provided even in cold weather (unlike
when you use alternators). We offer the
following types of chargers (like the one
shown on the right):
• Chargers for vehicle fitting
• External chargers for use without fitting
All chargers have min. 20A and intelligence to avoid overcharging.
Extension cord kit
This 5-metre 220V cord connects your truck to external charge
stations. Especially useful when such stations are awkwardly
placed or too far away for the regular connection cord.
Volvo Battery Reconditioner
Removes and prevents sulphation. This helps
you avoid discharges that could ruin the battery.
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