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Battery packs - Hows your longevity?!

Old 09-23-2013, 02:11 PM
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Rendegade
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Default Battery packs - Hows your longevity?!

Hey guys, I'm getting close to pulling the trigger on a new set of batteries, and I need to know how you're all going with the packs you're currently running.

My last set of zippy compacts puffed quickly, but I was pulling a lot of amperage out of them, so I'm especially interested to hear from people with high amp, low voltage setups.

I'm tempted to buy some revolectrix packs but I don't know a lot about them, but if their chargers are anything to go by then the packs must be good right?!

Thanks

Greg
Old 09-24-2013, 09:50 AM
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Anthony-RCU
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My Zippy compacts are doing ok but they only have about 40 flights. IR are high for what are supposed to be 35c packs but I haven't pulled logs to check voltage drop. They may even be starting to swell a little after a big F15 flight. They are much better than the Nano-techs. Had a great set of Sky lipos two years ago but when I bought more this year they were very weak. Not real impressed with anything and hate the variations when practicing. Debating if it is really worth spending some money on some high dollar batteries. The F sequence is also making me think about moving to 5000 mah over the 4500 packs I have been using. Have heard good things about the Hobby People batteries.
Using a Neu F3A 10s set up. Just under 90 amps using around 3200 mah per flight.
Old 09-24-2013, 04:32 PM
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Anthony,
Back in June, I bought a 5S 3300 pack from Hobby People for an electric U-control stunter. I performed a proper "break in". The battery IR readings were through the roof- in the fifties as I recall. Replaced it with a Hyperion. Recently, their prices have become more competitive.
Still prefer TP and I pick up a few now and then when TP runs a special.
Old 09-24-2013, 07:38 PM
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Hi Greg,

My oldest packs this year are two TP 5000 G8's. I have attached screenshots of the logging app to show the capacity used per cycle and number of cycles (packs 5 and 6).

Setup is a Pletty Advance, I guess around 75A peak, maybe 80A.

These packs were new in April and flown almost exclusively to the WC. I used 5400's at the WC mostly, and then back to the 5000's since I got home.

Packs almost always charged at 20A, the odd time at 10A if I have a few packs going at once. Don't think I have ever charged them at 5A. I almost never leave them charged overnight, which I think is a big help to long life.

Just checked the IR's on them on the weekend and both packs all cells were between 1-3 mohms.

YMMV but the G8's have been working fantastic for me!
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Old 09-25-2013, 04:11 AM
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Chad that's looks like a cool way to keep track of your batteries. Is that from the Thunder power charger? Also are the percentages listed how much battery power is left in the batteries?

thanks,
Old 09-25-2013, 05:19 AM
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Chad which app is this one? Is it working in conjunction with your charge?
Old 09-25-2013, 12:03 PM
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Looks like this is the one....

https://play.google.com/store/apps/details?id=net.rcscout.lipo.free&hl=en
Old 09-25-2013, 12:31 PM
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I'm on iPhone...
Old 09-25-2013, 05:34 PM
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Gents,

The app is Rc-Log (http://www.rc-team.org/rc-log/). I think its Android only though. Its not tied to the charger, but you print off a QR code (from the website) and tape it to the pack. You then scan the packs into the app, and add airplane models. So when you charge you just open the app, hit scan and scan in the pack. Then enter the details like which airplane you flew, flight time, charge amount and you can even enter IR values if you check them. Its pretty handy and keeps track of all the values. It will also tell you flight time per week/month on each plane and also how many mAh/min consumption across all the charges.

I wish it was tied into the chargers...but its not.

Hope that helps
Old 09-26-2013, 03:59 AM
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Thanks Chad
Old 09-26-2013, 04:59 AM
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Thank you, too bad I would have like it )
Old 09-26-2013, 11:59 AM
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I've been using that same app for about a month now. It works great! You can click a battery and log mah, IR, time and even tie the flight to a plane. It affords discharge cycles as well.
Old 09-27-2013, 11:51 AM
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Just last weekend i fried a couple of easy power 4500 5s. Only about 50 cycles. My favorit is still Hyperions 4600 F3a packs. More than 100 cycles and still no swelling. Plettenberg 30.09 evo ll and spin 99. 20x12 pt.
Old 09-28-2013, 10:04 AM
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My oldest Hyperion CX 25C 5000 10S packs are still in use after three seasons and 206 cycles each. I have three of them and one of them was used at the WC 2011.
I also have 4 sets of the same type that is «new». Only two seasons and 152 cycles each.
They all have enough power to fly the F schedule in windy conditions but some of the punch is gone.
Plettenberg Advance and Ulsamer 21x13W. Max 75A in the air measured with telemetry sensor.

Regards,
Henning
Old 01-23-2014, 06:54 PM
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Mark

Any IR data or discharge curves for those lipos?
Old 01-24-2014, 06:38 AM
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Originally Posted by MarkF View Post
Bringing an old thread up to date. When your ready for new packs check these ones out.

http://dinogylipos.com/18-5s-lipos

Mark
Mark, the website still shows the incorrect weight for the 5000 5S packs - 675g shown - actual around 595g

Steve

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