der Stromspeicher
Translation
electricity storage, power storage, battery storage
Examples
Ein Akku ist ein mobiler Stromspeicher.
A rechargeable battery is a mobile power storage device.
Große Stromspeicher stabilisieren das Stromnetz.
Large power storage systems stabilize the power grid.
Grammar Patterns
der Stromspeicher (nominative) The power storage is full.
den Stromspeicher (accusative) We need a bigger power storage.
dem Stromspeicher (dative) Energy is added to the power storage.
Similar Words
Akku (rechargeable battery), Batterie (battery)
Etymology
From 'Strom' (current, electricity) + 'Speicher' (storage, memory). Literally 'electricity storage'.
Memory Tips
Think of a large warehouse or 'storage' unit (Speicher) just for 'electricity' (Strom).