I usually charge lead batteries for the cat door. They are usually on the charger for about 4 weeks. I have not noticed any overcharging. With the LiPo battery from the motorbike, I attached it after it was fully charged
Cable part 1 of 2 / power supply unit to plug connection is 210cm
Cable part 2 of 2 / 47 cm from the plug to the terminals
With terminal length 8.5cm for part 2, this adds up to a total length of 265cm