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I have 2 batteries of the same type, capacity and cell count. Can I use a relay to switch between them without stopping the charger? (I cannot use parallel charging board, because one battery will be empty, while the other one might be halfway full).

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  • \$\begingroup\$ depending on the smarts of the charger it may need to see some time with no battery connected to reset the logic before you can reconnected the next battery. \$\endgroup\$ – ratchet freak Oct 31 '17 at 10:49

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