Topeak E-Xplorer Trunk Box

While it is engineered specifically to protect e-bike batteries with thermal insulation and impact absorption, the 8.5-liter interior is versatile enough to carry food, drinks, or extra layers for longer rides.

The E-Xplorer Trunk Box uses the Topeak MTX QuickTrack 2.0 system, which is designed for specific Topeak racks. If you do not have a compatible rack, you can also secure it using the included hook-and-loop straps.

The box weighs 939 grams. Because it is constructed from expanded polypropylene, it remains lightweight while still providing the structural rigidity needed to protect heavy batteries.

It is water-resistant, meaning it is built to protect your battery and gear from road spray and light rain. However, it is not fully submersible or waterproof, so you should avoid riding through deep water.

Yes, the expanded polypropylene material helps regulate internal temperatures. This is particularly useful in colder weather, as it helps keep the battery closer to its optimal operating temperature for better efficiency.

The box is designed for stability and protection. When properly mounted using the QuickTrack system or the hook-and-loop straps, it is built to hold heavy batteries firmly in place, even when riding over uneven terrain.