How long do ePropulsion Spirit batteries last?

ePropulsion Spirit batteries are rated for at least 500 cycles at 80% depth of discharge (DoD). This means that you should expect to be able to use your ePropulsion Spirit at least 500 times, running the battery from 100% to 20% each time. Most users will find that they use less than 80% of the battery each outing, and can thus expect more than 500 cycles.

All lithium batteries degrade over time, losing about 1% to 3% of their capacity each year. There are a number of factors that can impact the lifespan of your ePropulsion battery, but if you take good care of it, you can expect to get about 7 years of useful life from the battery. After about 7 years, the battery will likely still be usable, but will have significantly less capacity than it did when it was new. At this point, you can purchase a new battery.