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BrianG · 04.24.2009, 08:33 PM

This is why I personally do not suggest parallel connections. In order to safely hook batteries in parallel, they must be very close in voltage, preferably exact. I would charge them both up to get a fresh peak and then hook them together.

But, judging by your description, you probably shorted both batteries. Parallel connection is done by hooking the + wires together and the - wires together. Sounds like you hooked the + and - together, which shorted the batteries. This generated a HUGE amount of current; enough to melt the plugs.

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	04.24.2009, 08:33 PM This is why I personally do not suggest parallel connections. In order to safely hook batteries in parallel, they must be very close in voltage, preferably exact. I would charge them both up to get a fresh peak and then hook them together. But, judging by your description, you probably shorted both batteries. Parallel connection is done by hooking the + wires together and the - wires together. Sounds like you hooked the + and - together, which shorted the batteries. This generated a HUGE amount of current; enough to melt the plugs.