The FALLER lithium polymer battery, Art. 180713, have been specially developed for operating the container gantry crane models, Art. 120290 and Art. 120291 with the corresponding drive set, Art. 180290. For this, you need two samples of the lithium polymer batteries, Art. 180713. To charge the batteries, Art. 180713, exclusively make use of the lithium battery charger (3.7 V), Art. 180714 with USB A connection, which can be connected and operated on any PC/notebook.