
✓ Up to 18 hours of additional runtime ✓ Hot-swappable ✓ Lightweight | Doubles battery life | Mobile events and outdoor acts.
The JBL Battery 400 is a swappable, high-performance battery for JBL Eon One Compact and PRX One speakers. It provides up to 18 hours of additional playback time, making all-day events possible without needing a power outlet. Ideal for garden parties, mobile stage performances, and small gatherings of 50 to 200 people where long battery life and uninterrupted operation are essential.
Included in the box
Typical applications
Technical highlights
Dimensions and weight
Note: The Battery 400 is an accessory that is only useful in combination with compatible JBL speakers. When you rent from Renty, you get the Battery 400 with no deposit and full insurance coverage.
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Which speakers is the JBL Battery 400 compatible with?
The JBL Battery 400 is exclusively compatible with the JBL PartyBox Stage 320, PartyBox Club 320, and JBL Xtreme 4 models.
It was developed specifically for these speakers and features a proprietary slot connection. It cannot be used with other devices, ensuring a perfect fit and optimal performance.
How long does the JBL Battery 400 last?
The battery provides an additional playback time of up to 18 hours per full charge.
By quickly swapping in a second battery, you can achieve up to 36 hours of continuous operation, which is ideal for long parties without a power connection. Actual runtime depends on volume levels and the content being played.
How difficult is it to swap the battery?
Replacing the battery is extremely easy and takes less than a minute.
Thanks to the user-friendly plug-and-play system, you don't need any tools or technical expertise. Simply slide the battery into the designated slot on the back of the speaker until it clicks securely into place.
How long does it take to charge, and is there a fast-charging feature?
Yes, the battery features a convenient fast-charging function. Just 10 minutes of charging is enough for up to 2 hours of additional music playback.
A full charge takes about 3 hours when the device is turned off. You can also easily monitor the current battery level at any time via the JBL PartyBox app.
What type of event is this additional battery ideal for?
The auxiliary battery is perfect for events such as parties, garden gatherings, or mobile DJ sets for 50 to 200 people, especially in locations without direct access to power.
It solves the problem of limited battery life and gives you maximum flexibility when choosing your location. This helps you avoid messy cables and the worry of your music suddenly cutting out.
What is included when I rent the battery from Renty?
When you rent the JBL Battery 400 from us, you receive the fully charged battery itself as well as a brief orientation during pickup or delivery.
Since the battery charges directly inside the compatible speaker, no separate charger is required. You can, of course, also book the matching speaker, such as the JBL PartyBox Stage 320, directly with us.
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