If it's green all the time, it means it's not charging. First of all, take a look at whether the charger output is open, whether the wire is broken, whether the terminal is off, if the charger output is no problem, then the problem may be in the sprayer inside the battery.
< br >
Disassemble the sprayer, find the battery, see if there is a charge drum, burn marks, if there is, replace the battery.
one
The green light of the charger indicates that it is in the charging state and changes color after it is full.
two
If it is always green, including full charge, it is that the charger indicator light has no status change display.
three
Lithium battery back pool charging has not been able to reach the rated voltage, so the green light has been on, which belongs to the quality of the charger or battery quality problems. You can go to the seller.