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12X battery help

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Old 06-04-2018, 04:48 PM
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sideshow
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Default 12X battery help

The battery on my trusty 12X won't charge. The charger doesn't see the pack and I've tried several different chargers. I switched to Eneloops many years a go and they work great. I went out last weekend and I couldn't charge at all. I still had enough voltage that I flew but I can't charge at all.

I think the PCB board is done, which is why no charger can see the pack. The whole cassette is really hard to find so I'd appreciate any ideas.
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Old 06-05-2018, 06:50 AM
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Bob, See if Steve can help you at

NoBS Batteries RC Battery Packs for Giant Scale, IMAC

Dan
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Old 06-05-2018, 09:57 AM
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Originally Posted by All Day Dan View Post
Bob, See if Steve can help you at

NoBS Batteries RC Battery Packs for Giant Scale, IMAC

Dan
+1 and do not use the JR provided charger with the 12X, just a regular walwart as the provided charger cooks the batteries. Cassettes show up occasionally over on RCGroups classifieds.
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Old 06-17-2018, 11:47 AM
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There is a small fuse that looks like a resistor on the pcb within the battery case. My guess is that it has blown. This usually happens when you short the charging leads, or plug in a charger with the incorrect polarity. You can temporarily jumper the fuse and be very careful, or find a electronics savy friend to open the battery and replace it for you. I sold all my 12X stuff, and no longer have the parts. Thanks!
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