I bought an electric battery powered weed whacker for small jobs as I rarely, but sometimes, do yard work for clients (handyman).
Each 6AH battery gave about 20 minutes of run time and the thing completely crapped out on its second job. Complete waste.
Before I sold my house I had an electric weed wacker, the plug in kind. I actually really liked it. It was more reliable and less noise. As a consumer it was great I had that choice. However that isn't going to work for landscapers or people with large properties. As you said, the battery powered ones aren't up to it.
You bought a piece of shit, then. I have an electric chainsaw, electric hedge trimmers, electric leaf blower, and electric weed whacker. All of them run long enough to do my regular yard work for a two weeks before I have to charge the battery again, and I move the battery from tool to tool. The hedge trimmer are more powerful than the corded ones it replaced.
It was a dewalt
If you get the chance, try .
One thing to keep in mind is that you have to treat lithium batteries right for them to last. Storing them fully charged will wear them out very fast. If you're not going to be using them right away, try to store them at 50% or less. Also, don't store them somewhere it gets over 90°F. Heat also destroys lithium batteries. If you have a cold basement, that would be the best place to store them.
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