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What kind of batteries do you use, and how long do they last?

We have designed and built our own battery pack, using small-cell lithium-ion batteries from a top-tier supplier (18650s, the same size used in the Tesla Model S and X). Our battery packs include active thermal management, to ensure that they’re kept in a temperature range that optimizes for performance and long life.

The Pure Watercraft battery pack is designed for a useful life of at least 10 years or 1,000 full charge/discharge cycles. Useful life is defined as retaining 70% or more of its original capacity. Below 70% capacity, the battery is still usable.

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