Updated 7-29-16EBL contacted me and send me a new replacement and it's working fine now. It takes around 3 to 5 hours to fully charge the battery now.Therefore, if you the charge doesn't get green light after 6 hours then contact MFG for replacement.I have bought the 8 batteries + the charger. Right out of box and it doesn't work at all. I have charger the battery over 12 hours and the light still RED. I don't know if it's the batteries or the charger, but these products just doesn't work. I would definitely not recommend it at all.
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