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Old 06-24-2005, 02:52 PM   #1
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Default Batteries and Digital Servos

Can anyone tell me if an 850mah AAA battery pack would last an hour main final, when used with 2 digital servos (Ko Propo 2343 and HiTec HS-5475 HB), over a TM G4 Touring Nitro Car.

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Old 06-25-2005, 12:14 AM   #2
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Nope. 45 minutes max with two digital servos. Another problem is transponder weak signal.

My friend use two erg vx ( 13kg non digital ) and barely make it 1 hour.
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Old 06-25-2005, 12:21 AM   #3
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OMG.... your main final is 1 hour ??

Let me suggest for you : Buy li-po battery. Light weight, Big Capacity and more punch.
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Old 06-25-2005, 04:33 AM   #4
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I made an hour long main with two analog servos on a 730mah pack. If you are worried, there are longer life batteries available. I have seen AAA nimh upt to 1000 mah. I believe GP has a 900 or 950 out right now.
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Old 06-25-2005, 06:26 AM   #5
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alfonso, ebay has aaa 1100 mah. enough for an hour!
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Old 06-25-2005, 07:05 AM   #6
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If your battery is charged properly you shuld have no problem making the whole hour with an 850. We have been running hour long mains in Las Vegas for 2 years and have had only a few not make the hour long main.
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Old 06-25-2005, 08:57 AM   #7
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Thanks to all of you guys. I guess It's time to search for a high capacity AAA pack.

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Old 06-25-2005, 08:59 AM   #8
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Hey guys I came across an interesting thought. I went to http://www.energizer.com/products/lithium/ to check out their rechargables. Basically looking into the AAA pack.

I then went to their lithium batteries. They say they weigh 1/3 less than standard alkalines. So im guessing this would be the ultra lightweight battery pack.

It doesnt say you can recharge them but I wonder if you could with an appropriate charger. I have no clue what that would be, li-poly charger?

I know your not supposed to charge alkalines but people still do that.

Also the power output says they last 7X longer than regular alkaline. So im sure their also much better than the rechargables.

If anything I wonder how much runtime one could expect it might be worth buying a set or two and running that for the season. I figure if you get 1 run times or something with rechargables then it should be 7 hours for the lithiums?

Which is a good amount of runtime , at least for me. Im going to look into this further, cause this might be the way to go and you dont risk running out of juice during long mains.
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Old 06-25-2005, 10:22 AM   #9
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do the mah's on battery packs indicate some type of duration of thier run time?
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Old 06-25-2005, 04:42 PM   #10
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Yes.
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Old 06-25-2005, 08:00 PM   #11
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Quote:
Originally Posted by Jye
do the mah's on battery packs indicate some type of duration of thier run time?

mAH is to indicate how much charge a battery normally can hold at full charge. actual run time depends on how much charge the electronics on your car consumes.
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Old 06-25-2005, 10:20 PM   #12
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How much mah's do the batteries you guy's use have, and do you used nicd or nimh?
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Old 06-26-2005, 02:20 PM   #13
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Can someone post a link to the 1100mah AAA's on ebay as I can't find them.

I run 800mah packs with a KO 2343 and 2344 and I'm getting just over 3, 5 minutes runs with them. One pack is only 2 months old!! I run a PT off it as well for the little they drain, so am badly after more capacity and had looked at going Lipo, but I'm unsure if a Lipo pack will fit in my Serpent 710.

Both my 800mah packs get just over 600mah in them, has anyone else had problems with theirs? What charging methods are people using, amps and cut offs etc.
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Old 06-27-2005, 03:22 AM   #14
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Charger : any Ni-Mh charger like LRP Pulsar Competition, CE GFX
Charging Amp : 0.9 A
Delta Peak : 10 - 25 mV
Charging Style : linear

AFM, a friend of mine said AAA 850 is enough for 1 hour final if you charge them from 0 mAH capacity . He has a G4 with 2 x 8.1 kg digital servos.
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Old 06-27-2005, 03:33 AM   #15
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I'll increase my peak cut off, think its about 8mv. My 3300 are at 12mv and will sometimes cut off on the temp sensor, so thought receiver packs would be the same.
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