I have an iRobot Roomba 560 sweeper. Every 2-3 years the battery fails and needs to be replaced. iRobot batteries are quite expensive for older models. I came to Revain at a lower price. Of course, the old adage that you get what you pay for also applies here. The battery fits well in the compartment. The battery charges well, but one of the batteries appears to have a weak cell. About 35 minutes into the cleaning cycle, Roomba wants to recharge and returns to its charging dock. If the batteries were good the sweeper would clean for over an hour. As such, I give mixed reviews about its quality.
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