Review on Tenergy 7.2V 2000mAh Replacement Battery for iRobot Braava 380 380t 390 390t & Mint 5200 5200B 5200C – Enhanced Power and Durability! by Tori Williams

Product ordered at the end of July 2020. Worked fine once installed but battery life started to drop after a few months to the point that the iRobot 380t only ran for about five minutes before the low battery indicator started flashing and the cleaning cycle stopped. Changed the battery today (6/1/21). So if you measured generously, maybe four months of life. I used an average of 4-5 times a week and only once a day. So the lifetime is maybe 80 cycles.