Hello i resolve problem "For InfoLITHIUM Battery Only" next way. I plug battery NP-F970 to 12 volt lamp from my lighting kit throught left and right connectors (not midle) on battery. After that i insert battery in sony 2100 and all work fine. I think it is problem of my not sony optional charger. Before do this trick I measure voltage from (midle + right) connectors on battery, it's show me 8,38 volts and i measure same on work battery, and see 0,38 volts.

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