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Old 06-19-2018, 10:23 AM
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kram
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I hate to show on a public forum that I still hunt with dinosaurs, BUT:

I fly Spektrum 12ch receivers with my old JR 12X-DMX transmitters and they work great

Recent purchase of AR12300T's, have no options without PowerSafe. I love the concept, really, but two (NiCad) batteries are directly connected to receiver via independent EC3's. the switch is "soft" (internal), so how do I set up to charge batteries without getting inside the warbird to unplug them every time? I think having two leads on each battery is the only reasonable solution,

Correct??

Thanks,

Mark
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Old 06-19-2018, 10:31 AM
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Only dumb question is one you don't ask.

Here's my advice, don't use Nicads, use A123's with balance connectors and an external charging jack.

That aside, you can always order something with dual connectors and rig up an external charge jack but make sure you charge them one at a time because of the common ground.

Now let me tell you something you didn't know to ask. The "soft switch" has a very small current running through it to hold the internal regulator in an off state, when the switch is on its open. Why? because most switches fail open and on a conventional switch that means power off, with a soft switch it means power stays on, an obvious advantage when your plane doesn't fall out of the air because of a bad switch.

What that means is, if the batteries are hooked up and you're storing the plane, eventually it will pull them down flat and kill the packs so unless its for a few days, you don't want to store them plugged in.
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Old 06-19-2018, 10:45 AM
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Thanks for your prompt reply

Perhaps I should engineer a way to unplug my batteries. Pretty difficult for some of my warbirds where they're hidden in the belly of the beast!

Receiver instruction manual says no more than 0.1% drain, but gives no time span. If that's constant, then, yes, would not be good!

After starting this thread, I came upon a recall notice for AR12300T's from March 2017 which was about the time I purchased the receivers

Maybe I better not fly these receivers?

I'll call them and try to get through to somebody knowledgeable
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Old 06-20-2018, 05:33 AM
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If you have AR12300T receivers, contact Product Support to arrange to have them swapped out for AR12310T units. Free.

Andy
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Old 06-20-2018, 08:14 AM
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Thanks

Put them in mail today

Do you have an opinion how to charge the batteries without disconnecting them from PowerSafe?

Mark
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Old 06-20-2018, 08:29 AM
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I recommend disconnecting them from the receiver. The circuit needs to be physically opened. Perhaps one of those safety power plugs like Maxx sells?

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Old 06-20-2018, 09:10 AM
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I like the concept, even considered it, but I donít think those arming plug set-ups give me charging access: they just interrupt the red wire

So I would still need a separate charging lead for each battery?
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Old 06-20-2018, 09:56 AM
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I'll give this another go.

I use these in several giant scale planes. I have the EC3 where I can connect them and disconnect them when the wings are off. I use A123's and a Cell Pro charger that charges through the balance tap, when I get to the field i put the plane on a stand, charge the batteries through the balance taps, connect them and fly. I have never had a situation where I ran the batteries flat in one day of flying.
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Old 06-20-2018, 10:23 AM
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Originally Posted by kram View Post
I like the concept, even considered it, but I donít think those arming plug set-ups give me charging access: they just interrupt the red wire
My charger does it through the balance port, not the power leads.

So I would still need a separate charging lead for each battery?
Yes.

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Old 06-20-2018, 11:19 AM
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I read you loud and clear!

I was just trying to figure out a way to get Ďer done in a warbird, where digging out 2 battery leads every day might not be easy
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