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.
Disassemble the sprayer, find the battery, see if there is a charge drum, burn marks, if there is, replace the battery.
It could be one of the following:
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1. The green light of the charger means that it is in a charging state and changes color after it is full;
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2, if it is always green, including full charge, that is, the charger indicator light has no status change display;
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3, lithium battery 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.
The sprayer charger is always green, indicating that there is a problem with its timer conversion, replace the timing converter