If both yellow and green LEDs come on, this indicates
a deeply discharged or defective battery pack.
Allow the battery pack to remain in the charger for 15
to 30 minutes. When the battery pack reaches normal
voltage range, the red LED should come on. If the
red LED does not come on after 30 minutes, this may
indicate a defective battery pack and should be
replaced.
n After normal usage, a minimum of 1 hour of charging time
is required to fully recharge battery pack.
SOURCE: The Yellow and Green light both come on and stay
http://oneworld1.inetu.net/manuals/ryobi/hp1442m_1802m_874_eng.pdf
It sounds like your battery is bad. If yellow and green are on for more
than 15 minutes it probably a defective battery pack. See page 8 in the
manual.
SOURCE: light on ryobi 18v charger
More than likely a defective battery sinse the other ones charge fine..
Bring it back for exchange of another one..
Note;
We are helping people here every day on a points system.
If the information provided here was at all helpful,
please be kind and rate well.
Thank you – and enjoy your day ;o)
SOURCE: Some Ryobi 18v batteries charge, others don't.
Had the same problem with some makita batteries, Was going to throw them away so decided to take apart and see what was happening. The are made up of 1.5 volt cells soldered together, found that many had .9 volts or less and others had 1.5 or more. This means that some of the cells had gone bad (probably due to lack of chemical reaction). Found that if I collected all of the 1.5 volt together could charge just fine. Problem is it is very hard to get them all soldered back together and even harder to enclose them. If a mfg. could come up with some way to change cells individually they could make a lot of money and save us a lot. So the answer to your question is buy you at least one more battery and recycle your old one.
1,771 views
Usually answered in minutes!
×