Galaxus does not provide any information here. The numbers 14.4 and 18 volts are indeed confusing. ChatGPT gives the following answer:
--------------------------------------------------------------------------------------------------------------------------------------- The Bosch GAL 18V-160 charger states in the technical data: "for 14.4 V - 18 V Li-Ion batteries". This means: ● Not the output voltage, but the battery type it can charge. ● Bosch has two battery systems in this class: - 14.4 V Li-Ion rechargeable batteries (4 cells in series, rated voltage approx. 14.4 V, final charging voltage approx. 16.8 V). - 18 V Li-ion batteries (5 cells in series, rated voltage approx. 18 V, final charging voltage approx. 21 V). ● The charger automatically recognises whether a 14.4 V or an 18 V battery is inserted and adjusts the charging voltage and current accordingly.
👉 The specification "14.4-18 V" is therefore a compatibility range: the charger charges both battery series (14.4 V and 18 V), but it does not constantly output "14.4-18 V" voltage. ----------------------------------------------------------------------------------------------------------------------------------------
I bought the charger a few months ago for my 18 V tools and am very happy with it. The loud sound of the fans doesn't bother me, but I really appreciate the fact that you can charge super fast if you don't have any spare batteries. On the other hand, you can use the battery-saving charging mode if there is enough time to charge. In the long run, this extends the service life of the batteries.