After I looked back the message, I think philipfreire already gave me the answer. There must have the battery insert for car mode to get all working fine. Like keeping the settings overnight and saving the last recording file. Also don't feel disappointed that the battery would become swelling after 1 or 2 hot summer season. It's ok I can replace it but it would struck inside the battery housing and couldn't be taken out.
Otherwise, Like philipfreire said that should better looking for a camera with capacitor built in.
@philipfreire, please let me know if you found a better one.