For infrequent use, the corded model might make sense: cost less than a battery-powered one, no need to remember to check that the battery is charged, potentially less weight.
You didn't mention, by the way, Jean, how big this stump is. Depending on your strength and experience with tools like this, and if the stumps are small, a pruning saw might work. Slower, and it will induce more sweating, but you're safe from kickback.