The main board does not control the battery charge.

Question

Samsung POWERbot VR9000

Released in 2015, the Samsung POWERbot VR9000, model number SR20H9050U, is a robot vacuum with automatic charging and point clean functionalities.

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Stas Sh @stassh

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crwdns2931729:0crwdne2931729:0: Kul 30, 2025

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The main board does not control the battery charge.

The main board does not control the battery. It always shows one digit of charge. The battery is brand new. I noticed that R109, R107 have different values. Do you have a circuit diagram of the main board or tell me the values of resistors R109, R107. Thank you.

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