It may act as the loose connection of the electrode part of a battery box. Loose connection is prevented by soldering.
After wiring finishes, the resistance which controls the charging current of a battery is decided. It became about 60mA charging current by 47 ohms this time.
This is the component side of the Power unit.
This is the wiring side of the Power unit.
The strap is attached in order to prevent fall of the battery.
Because current 100mA or more flowed when changing to battery drive, I changed into the 1A type regulator.
