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Old 03-02-2009, 02:06 PM   #1
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Default Charging 2 LiPo batteries at once...

If I have two identical batteries, let's say two Orion 7.4 volt 3400 20Cs, and a charger that is capable of charging a 4S LiPo, couldn't I hook the two 2S batteries together and charge them as if they were a single 4S. I'm not sure if they would need to be hooked up as a 7.4v 6800 battery or as a 14.8v 3400 though.

Of course, they would need to be balanced charged each time since their voltage will most certainly always be different.

Does this seem like a viable way to make better use of charger time?
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Old 03-02-2009, 02:25 PM   #2
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this is possible. YOu will need to create your own balance Y adapter. I believe Reedy is going to come out with there own Y adapter. 2 other manufacturers I asked about it however would not make one do to liability issues they stated.

Push comes to shove, if you are not comfortable with an adapter, go with the Hyperion Duo (version 1 or 2, with v1 being cheaper to buy). It will balance charge lipos together as one pack.
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Old 03-02-2009, 02:32 PM   #3
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Unless you use the packs together in a single vehicle, balance charging them together could take just as long as if you charged them separately. Most Lipo balancers can take a long time to correct a severe mismatch.

The Hyperion Duo or two dedicated chargers is a much better option.
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Old 03-02-2009, 07:33 PM   #4
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This will give you an idea of what you'r elooking at to make that happen -

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