A battery pack can reach IP67, but waterproofing is an enclosure and connector engineering task rather than something the cell itself provides.

Can a Battery Pack Achieve IP67 Waterproofing?

What IP67 Means

An IP67 rating means complete protection against dust and the ability to withstand temporary immersion in up to one metre of water for 30 minutes. Inside a battery pack, connectors, vents and gaps between cells are all potential leak paths that must be sealed.

How Packs Are Sealed

Common approaches include gasket or ultrasonic sealing of the enclosure, potting the internal space with epoxy or gel, sealed cable glands and rated connectors, plus pressure-balanced vents that allow air movement without letting water in. Each method adds cost, weight and thermal-management trade-offs.

IP67 suits outdoor, medical and industrial devices that may face rain or wash-downs, but it is not continuous deep immersion, which may require IP68. If waterproofing is essential, specify depth, duration and chemical exposure early, and have the enclosure and connector design reviewed during project evaluation. In practice, the connector and cable entry are the most common leak paths, so the assembled pack should be tested rather than assumed watertight from the cells.