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Battery Charging Error "7" on Roomba 530

Had an old roomba 530 in storage. Ordered an off brand replacement battery to get it working again. Old battery and new battery give charging error 7 from dock and direct plugged. Even tried charging roomba on a Eufy robot charger threw same error on it after a few hours. It acts like it's charging on all chargers all different ways but then about 4 hours into it it throws the error code. I'm pretty confident it's not the charger. Roomba worked fine with the new battery 1st run. Tried to charge in several rooms so it's not an outlet or climate issue.

Answer this question I have this problem too

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Have the same issue. Did you fix it?

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Fix it myself. Replace D19. Also check R52 and R319. Here is the thermistor schematics http://www.robotreviews.com/chat/viewtop...

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No cleaned all circuits and charging contacts still not working

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Try resetting the roomba’s software using the spot and dock buttons. Make sure that the charging and battery contacts are clear and that the battery is seated properly. If that doesn't help, make sure that the battery is suitable for the roomba (which means the battery says it’s compatible with it). If none of these steps help, contact iRobot.

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Stephanie Gillham will be eternally grateful.
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