LiPo power on a .90? - RCCanada - Canada Radio Controlled Hobby Forum
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Old 09-29-2004, 09:12 PM   #1
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LiPo power on a .90?

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Hey all. I'm thinking of putting a 2100mah 2 cell LiPo battery in my Ergo 60 (actually a .90 C-Spec). The model runs three JR 8311 digital servos, a JR 5000t gyro with 8700g servo, GV-1 governor with a JR 3421 digital on throttle and a 10 channel PCM receiver. Is anyone out there using LiPo for receiver power in bigger nitro models with similar loads?

Related to that: I have heard of people using two LiPo packs in case one fails, does anyone have experience with this? Carring two packs and regulators will basically use up any weight savings I want to get from using LiPo instead of NiCd. Plus it doubles the cost.

And related to that: what kind of regulator should I be looking for? I can't feed the recereceiver volts of course. With the 5000t I think I'm limited to 4.8-5.0 volts. Will a simple uBec do (nice smooth 5.0 volts)? Is there something better out there I've not seen?

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Old 09-30-2004, 05:42 AM   #2
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There are lots of people using li-ions for rx packs, some choose to use small nicads to keep the weight down as well. Either type will work fine. Duralite makes requlators and batteries.....they're a bit pricy though.

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Old 09-30-2004, 08:08 PM   #3
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I actually have a battery. I bought a Thunder Power 2-Cell 2100mah pack for my MS Hornet. It turns out a 3Cell would be better for my flying style. So now I have a 2-Cell pack with only 3 flights on it but no home.

Add to that the fact that my Ergo is ready for a new pack and I started thinking. Thanks for the tip on Duralite. Their site even has a quote from Curtis. I suppose if it's good enough for him it may work for me too
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Old 10-02-2004, 12:17 PM   #4
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I was running a Thunder Power 7.4, 2100mah in my Raptor 50 and never had a problem when flying, it worked great, but I left it plugged into the regulator when I wasn't using it and it drained the battery and fried it.

Colin is right about the Duralite batteries, they do make good quality stuff, but they are pricey (I did quite a bit of research on them).

I found this one on Zebra's web page. I'm going to put it in my 50 and 90. It's the best price I can find for that size of a battery, you mite want to have a look.
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