FRANKIA OPERATING MANUAL34 FRANKIA OPERATING MANUAL 35
Self-discharge of the batteries:
Every battery loses its stored energy over time without a consumer being connected. This self-discharge is a measure of
the age of the battery, old or frequently charged and discharged batteries discharge faster than new ones.
Shutting down the battery:
If the motorhome is not going to be used for a long time, the following measures should be carried out:
1. Fully charge the battery via the electro block (open-circuit voltage after 5 hours at least 12.6V).
2. Disconnect the battery from the circuit - either via the control panel or better by disconnecting the negative pole
3. For the Solar option: Remove fuse No. 5 “DIR2” from the 12V distribution board. (For the Platin and Titan pa-
ckages, the corresponding fuse on the fuse holder in the technical centre or on the solar controller must be removed)
4. Keep the surface of the battery clean and dry
5. Store the battery as cool as possible
When commissioning please repeat the above mentioned measure. For longer downtimes, repeat the above mentioned
measures every 6 months.
Deeply discharged batteries:
If the open circuit voltage drops below 11.8V, we refer to a deeply discharged battery. If the operating mode is correct,
this condition should not actually occur, since the control panel issues a visual and acoustic warning when the battery
is discharged. (See operating instructions from the company CBE). In some cases, deeply discharged batteries can no
longer be charged using the built-in charger.
If the battery is still deeply discharged, proceed as follows:
1. Charge the battery using the electro block
If this does not succeed:
2. Disconnect and remove the battery on both sides
3. Charge with a suitable external charger
a. Either an hour with about 2A
b. Or charge an hour with about 16V
4. Reinstall the battery and connect it
5. Then fully charge the battery using the electro block
If this measure does not work, there is likely to be permanent damage and the battery needs to be replaced.
• Avoid discharging voltages of less than 11 volts. Such deep discharges shorten the life of the batteries
considerably. Due to insufficient charge, sulphate formation can also occur, which is difficult to remove.
• A fully charged battery is less sensitive to cold than an empty battery. It is therefore a good idea to
keep the battery charged to prevent freezing.
• The batteries should be charged for at least 12 hours before and after each trip.
• All devices and lights must be switched off before connecting or disconnecting the additional battery.
• The replacement battery must be replaced by the same type with the same specification as the origi-
nally installed auxiliary battery or as specified by the manufacturer.
Solar module (option):
The solar panel is located on the vehicle roof and converts light into electrical energy. These are solar cells with a high
degree of efficiency. The energy obtained in this way is fed directly into the 12-volt electrical system, and the living area
battery is charged when there is an excess. The solar controller takes over the distribution of the solar power. When the
living area battery is charged and the control panel is switched on, the starter battery is also charged.
Maintenance and care:
• The solar cells are located behind a hardened glass plate; the panel is waterproof and weatherproof.
Solar cells must be clean in order to maintain their performance. Therefore, you should clean the glass
plate of the module with a damp cloth and a little washing-up liquid every 4 weeks.
• In dusty environments, the solar panel needs to be cleaned more often
• In winter, the panel must be kept free of snow, as hidden solar cells cannot supply electricity
Instructions for the electrical power supply according to DIN VDE 0100-721:2010-02
When connecting:
a) Check the following points before connecting the motorhome system to the electrical power supply:
1) The power supply available at the parking space must be suitable for the electrical system and
the devices of the motorhome with regard to the dimensioning for voltage, frequency and current.
2) The cables and connections must be suitable.
3) The main disconnect switch of the motorhome must be in the off position.
The flexible supply line of the motorhome should be completely unwound to prevent damage from
overheating.
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