Negative Positive
Title: I Got A $50 Lemon!
Review: I bought an extra battery as spare. Unlike the original one that came with my Roomba, this one doesn't always charge in 3 hours. Sometimes it does, sometimes it doesn't. When it doesn't, it doesn't matter how long it is connected to the charger, it remains in a barely charged (orange light) state. I have to take it off the charger, run the vacuum once to the end song, plug it in the charger again and pray that it will work this time.Too bad I didn't test it when I received it from Amazon. I put it on the shelf and waited a year after my original battery died before I used this one. Moral of the story - test the battery as soon as you get it. Don't assume it will work because it might not. I paid $50 for this lesson.Roomba should either address this production issue or allow second sources to make this battery.
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