battery
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battery
A device that generates and stores electrical energy through chemical reactions in order to supply other devices with power.
Ich muss die Batterien in der Fernbedienung wechseln, sie sind leer.
I need to change the batteries in the remote control; they're dead.
drum kit
The complete set of drums and cymbals in a band; the drum kit.
Der Schlagzeuger sitzt hinter seiner Batterie und gibt den Rhythmus vor.
The drummer sits behind his drum kit and sets the rhythm.
battery
A military artillery unit consisting of several guns.
Die Batterie feuerte eine Salve auf die feindlichen Stellungen ab.
The battery fired a salvo at the enemy positions.
battery
A large number or series of similar things set up or arranged together.
Die Psychologen setzten eine ganze Batterie von Tests ein, um die Fähigkeiten der Bewerber zu prüfen.
The psychologists used a whole battery of tests to assess the applicants' abilities.
In English, 'battery' can also mean a physical attack, as in 'assault and battery.' The German word 'die Batterie' never has this meaning. It always refers to objects.
Für die Taschenlampe brauche ich zwei neue Batterien.
I need two new batteries for the flashlight.
In connection with the energy source, the most common verbs are 'wechseln' (to change), 'einlegen' (to insert), 'herausnehmen' (to take out), and 'aufladen' (to recharge). You also say that a battery is 'leer' (dead/empty).
Die Batterien sind leer, du musst sie aufladen.
The batteries are dead; you need to recharge them.
When 'Batterie' (drum kit) is mentioned in the context of music or a band, it almost always means the drum kit. The musician sits 'hinter der Batterie' (behind the drum kit).
Der Musiker spielte ein beeindruckendes Solo auf seiner Batterie.
The musician played an impressive solo on his drum kit.
The expression 'eine Batterie von ...' (a battery of ...) is used to describe a large quantity or a long series of similar things. It is often combined with abstract nouns like 'Tests' (tests) or 'Fragen' (questions).
Im Bewerbungsgespräch wurde mir eine ganze Batterie von Fragen gestellt.
In the job interview, I was asked a whole battery of questions.
This meaning is limited to military usage. If you hear words like 'Artillerie' (artillery), 'Geschütz' (gun), or 'feuern' (to fire), this military unit is meant.
Die Batterie erhielt den Befehl, das Feuer zu eröffnen.
The battery received the order to open fire.
battery
Akku and Batterie are portable power sources for electrical devices. Akku specifically refers to a rechargeable energy storage device, whereas Batterie in ordinary usage usually means a non-rechargeable power source. So check whether the power source is meant to be recharged; in that case, Akku is the more precise choice.
Die Batterie in der Fernbedienung ist leer, deshalb ersetze ich sie durch eine neue.
The battery in the remote is dead, so I am replacing it with a new one.
Der Akku meines Handys ist leer, deshalb lade ich ihn über Nacht wieder auf.
My phone's battery is dead, so I am charging it again overnight.
