Marstek Jupiter C Plus Expansion Battery

We deliver directly to your home free of charge.*

Delivery usually takes 7-14 working days*, so just sit back and relax.

*More information can be found in the shipping conditions .

We guarantee a 14-day return policy. This means that, regardless of the reason, you can cancel your order within 14 days. As soon as we receive your return in its undamaged original packaging, we will process your refund immediately.

Please note that any costs incurred during a return or refund – such as PayPal's 2% transaction fee and return shipping costs – will be retained as a fee. This fee covers payment and processing costs.

*For more information on the conditions for a successful refund process, please see our refund policy .

Marstek.de offers a 10-year warranty. Should the product fail within this period due to material or manufacturing defects, we will provide a replacement. The replacement product will be covered for the remaining warranty period of the original item.

To make a warranty claim, please contact our customer service at: support@marstekenergy.com .

*Further details can be found in our warranty conditions.

We're happy to help! If you have any questions or suggestions, please write to us at support@marstek.de – our team will take care of your request immediately.