I need the device to install it permanently in the vehicle. Therefore the question, if I have set it to 12V battery once - disconnect the charger from the 230V mains and then reconnect it to the 230V mains - has the device memorised that I had selected 12V? because I plan to install this device in an inaccessible place. Many thanks for the answer.
I bought one of these some time ago. As far as I know, the setting remains the same. I have only used it for 12V batteries and don't remember having to reset the volts.
The instructions (see internet) say the following: Note on automatic charging The charger is a microprocessor-controlled automatic charger, i.e. it is particularly suitable for charging for charging maintenance-free batteries and for long-term charging and for maintaining the charge of batteries that are not in constant use, e.g. for vintage cars, leisure vehicles, tractor lawn mowers and the like. Due to the integrated microprocessor, charging takes place in several stages. The last charging stage, the trickle charge, keeps the battery capacity at 95 - 100 % and therefore the battery is always fully charged. The charging process does not need to be monitored. However, do not leave the battery unattended when charging over a longer period of time, so that you can disconnect the charger from the disconnect the charger from the mains supply manually in the event of a fault. 5.1 Explanation of the symbols (Fig. 2) A Charging a 6V battery (lead-acid battery, AGM battery and GEL battery) B Charging a 12V battery (lead-acid battery, AGM battery and GEL battery) C Error LED - terminals incorrectly connected (reverse polarity), short circuit, for 6V battery Charge voltage selection incorrect, battery defective. 5.2 Charging settings (Fig. 2) Connect the charger to the socket (observe technical data). All 3 LEDs flash briefly. The 12V LED then flashes flashes quickly. By pressing the Mode button (Pos. 1), the charging voltage can be set according to the existing battery voltage (6V or 12V). can be set. Depending on the selection, the 6V or 12V LED flashes quickly. During charging the corresponding LED flashes slowly. 5.3 Charging the battery: - Loosen or remove the battery plugs (if present) from the battery. - Check the acid level of your battery. If necessary, fill with distilled water (if possible). Caution! Battery acid is corrosive. Rinse acid splashes immediately with plenty of water thoroughly, consult a doctor if necessary. - First connect the red charging cable to the positive terminal of the battery. - Then connect the black charging cable away from the battery and the petrol line to the bodywork. Depending on the set battery voltage, the 6V or 12V LED flashes or 12V LED flashes slowly. 5.4 Fault LED (fig. 2 / item C) The error LED flashes (lights up) in the following cases cases: - If you select the wrong charging voltage (12V) for a 6V battery selected the wrong charging voltage (12V). The device fully charges the 6V battery and then automatically recognises the incorrect incorrectly selected charging voltage. - If the battery voltage is less than 3.5 V or greater than 15 V. The battery is not suitable for suitable for charging or defective. Other battery faults can also mean that the battery battery cannot be charged.