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Ryobi Multi-Volt Battery Charger - Page 3 Questions & Answers
Is it ok charging a 14.4v battery with a 18v charger
It will but; there is the very likely possibility that it will overheat and destroy the battery you're wanting too charge. However, if the charger you want to use is a slow charger type charger that is not putting out much current to begin with then, you possibly could get away with it. Anyway, kind of chancey at best!
Battery not charging. Orange
The air holes on the bottom of the batteries are there for the battery to vent. Downside is, these
vents can also allow moisture to get in and prevent contacts from
letting the battery charge and causing the "defective" display on the
charger. I work on pool and spa equipment and I had dropped my
batteries in a small puddle of water where I was working, both went
dead immediately and both showed "defective" on the charger even after
drying them out for a few days.Tried using a can of air and gave each of the vent holes several shots... The batteries charged and are now working perfectly.I'm sure even overnight condensation could be the culprit for a charger to display "Defective"
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