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BQ25601: register save when power off

Part Number: BQ25601

Hi team

Hope this email finds you well.

MY customer XINJE(NO.1 PLC factory in china) is testing BQ25601EVM board, Could you please these  two question:

1. Can register saved when power off?

2.  Vsys (TP4 (SYS), TP8 (GND)) is jump between 3.76V~4.2V, when there is no load between Vbat and GND, ?

About the question 1, I couldn't find any evidence that show the register can be saved after power off in datasheet, can we?

About the question 2, I tested the EVM also, and found that

When I "Disabled Terminaton ", the load of EVM board is stable in 0.11A, Vsys is stable in 4.2V.;

When I  "Enable Termination", the load of EVM board is jump between 0.01A~0.11A,the Vsys is junp between 3.7V~4.2V as below picture.

After I watched the datasheet  8.3.7.3 Charging Termination, still got no clue about this. Could you please help explain the reason?

Thanks Irene