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Century Radikal E640 - Swift 16 NX
› What Li-po charger?
06-06-2004 08:13 PM  13 years agoPost 1
Airmicro

rrApprentice

Roanoke, Va

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What seems to be the Li-po charger of choice here? I bought a Triton and have charged some 8cell 750 Sanyo's, but it false peaks like mad! I've been charging those same batt's on my MRC 969 super brain and it never false peaks with them!

I need a Li-po charger, because even though the MRC 969 says it will, DON"T! It will kill them, plus there are tons of post elsewhere about the prob's with it doing Li-po's! I love my 969 for all my other batt's, but don't want to risk it with Li-po's! If anyone else is using the Triton, is it famous for false peaking?

I've been looking at the Apache and the Plantraco!

Sam

Hummingbird V2
Razor V2
Phoenix 10
EDF40H tail
Trec tail esc
TP 1320 3s

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06-06-2004 09:06 PM  13 years agoPost 2
pet_heli

rrNovice

Portland, Oregon

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I actually like my triton. Since you've got it, why not use it? It'll do them, but it's a known thing that it's not the best for large packs, and runs best with an ample power supply. It'll do lipo packs for micro's just fine.

Otherwise, if you're getting rid of the triton, and sticking with the super brain for your other packs, what might be perfect for you is the astro 109 since it's a better li-ion/poly charger if you ever wanted to do larger packs (but it's ONLY li-ion/poly) and it's about an even trade with a triton (unless you want to go high end instead.)

Read this thread:
http://www.runryder.com/helicopter/t106400p1/

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06-06-2004 10:03 PM  13 years agoPost 3
hrpull

rrNovice

St. Louis, Missouri

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I like my Triton also - for 2S and 3S Lipo packs it works great. I think that the peak detection also depends a little on the DC supply into the Triton. I got one of the 13A supplies off of Ebay for $17 and my peak detection on my Nicad/Nimh packs is working fine. I've been using mine for over a year - although I'll probably also get the Astro 109 eventually.

Heino

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06-06-2004 10:05 PM  13 years agoPost 4
Airmicro

rrApprentice

Roanoke, Va

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Well I would keep the Triton, but it is false peaking my other packs which aren't big, just 750 mAh 8cells! It has false peaked all 5 times, but I can hook them on my Brain, and it charges them without a false. The Triton will false peak, and I can just reset and it will usually finish them out, or false once more!

I don't want to baby set my charger. I feel if it does this with my nimh's, then it will with the Li-po's when they show up!

Hummingbird V2
Razor V2
Phoenix 10
EDF40H tail
Trec tail esc
TP 1320 3s

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06-06-2004 11:07 PM  13 years agoPost 5
pet_heli

rrNovice

Portland, Oregon

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I haven't had that trouble with mine... Or at least I don't think I have. Maybe I've just assumed it did it right. What rate are you charging them? I'm also using a 13A power supply, probably the same one as you hrpull. At the field I use the 7A field battery just for Rx batteries.

The thing about lipo's and not babysitting is... while I haven't had any trouble with mine (I'm not sure if they've even gotten warm), the talk about their safety has me so scared I won't get too far away!

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06-07-2004 12:26 AM  13 years agoPost 6
Ben-T-Spindle

rrProfessor

Central Illinois

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The problem with universal chargers like the Triton is that they can be very dangerous for charging LiPo batteries. If you use an incorrect setting you will cause a fire.

Lithium only chargers are safer because you can’t accidentally use NiCad or NiMh settings.

The safest are the Lithium only chargers that automatically detect the number of cells. The Astro Flight 109 is a very good charger.

I have a Triton and an Astro Flight 109 and they are both very good chargers but the 109 is much saver. Since I purchased the 109 charger I don’t use the Triton for lithium for safety reasons. The 109 is as close to idiot proof as possible – just what I need!

... BTS

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06-07-2004 12:48 AM  13 years agoPost 7
Airmicro

rrApprentice

Roanoke, Va

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Yeah, I might go with a Lithium only charger too! If this triton can't charge my NiMH's and the Litiums, then no use having it because i already have a 969 Brain that is great for NiMH's!

The triton was false peaking on a 5 amp power unit and the charge was set at on 1.0 for a 8cell 750NiMH pack! This is the same power unit that came with the Brain and the same setting! The Brain never false peaks, and today when the Triton did 2 times on the same pack, I just connected everything back up to the Brain and let it finish the last 500 mAh's without a hitch!

Maybe the Triton needs a higher amp power unit! I'm really looking at the Apache charger, looks good also!

Hummingbird V2
Razor V2
Phoenix 10
EDF40H tail
Trec tail esc
TP 1320 3s

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06-07-2004 01:03 AM  13 years agoPost 8
pbmax

rrKey Veteran

Olympia, WA - USA

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Well, triton peak-detection behavior is not indicative of its li-poly / li-ion performance. Ion / poly charging doesn't use peak detection, rather it uses constant current / constant voltage. Really, its a lot simpler than peaking a nimh or nicd pack. The charger will charge up to 3.7v per cell (poly) or 3.6v per cell (ion) at constant current (whatever current you specify up to a 2a max I think, but you should never exceed 1C with any ion / poly pack) and once it reaches that voltage, it holds the voltage constant and lets the pack pull its own current until it peters off to zero.

I use a Triton and a Hobbico Mk2 for my poly and ion charging respectively. The triton is definitely the better of the two, but I've never had a problem with either. No, the triton doesn't do cell # detection and it's up to you to configure it correctly for your packs. But used in combination with the thermal probe ($8), it's pretty safe. I've been using it for months with great success.

I've heard that the $130 astro is better for li-ion / li-poly, but it's not worth the extra cash if you have a Triton already. I also experience some hanky-panky with nimh peaking, but ion / poly charging is solid.

pbmax

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06-07-2004 02:25 AM  13 years agoPost 9
Ben-T-Spindle

rrProfessor

Central Illinois

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The main reason I got the Astro 109 was to charge LiPo batteries for my larger helicopters. The Triton is limited to 2.5a for Lithium’s. If you have large LiPo packs you need a lot more charge current. The Astro 109 is just what I needed for the TP8000 6s3p battery on my Raptor EP conversion. The Astro 109 will charge from 1s to 9s from 50 ma to 8 amps.

After using it for a while it works so great that I now use it for all my small packs also.

Another interesting feature is that the Astro 109 does not use the standard constant current / constant voltage charge method. It used a three phase charging process that involves constant current followed by a pulsing technique to charge the battery. This process takes quite a bit less time than the Triton current/voltage method. The Triton can be painfully slow at times. Charlie at TP says that the Astro 109 charge method is actually better for the batteries than the current/voltage method.

So if you want a faster charge and a charger that will be good as you work up to larger models then the Astro 109 is a very good investment. I was not sold until I actually purchased one – this charger is worth every penny!

... BTS

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06-07-2004 04:35 AM  13 years agoPost 10
Airmicro

rrApprentice

Roanoke, Va

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Yeah, I was at the point almost last Wed. when i ordered my TP cells just tacking the Astro 109 with it! The reason I didn't was I thought I'd just get the Triton, that way 'd be good on the Lithium's and the NiMH's and just sell the 969 Brain!

Well If the Triton is gonna fumble around when it comes to NiMH's, but yet charge Li's good, then it isn't gonna work for me! I got the 969 Brain which like I said couldn't be better on my 750 8cells and my 3300 Ballistic's, so I'll just keep using it, and just get a dedicated Lithium charger! I've read before the Triton false's alot on non-lithium cells, and now I know it does!

I'm not worried about my using a Lithium charger correctly, I've been charging them off and on since the first Kokam's came out 2 years ago, but i haven't owned any later model Lithium's that are all the rage now, and was just wondering what the latest, greatest charger is!

Thanks, Sam

Hummingbird V2
Razor V2
Phoenix 10
EDF40H tail
Trec tail esc
TP 1320 3s

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06-07-2004 04:44 PM  13 years agoPost 11
Lift

rrElite Veteran

Houston, TX

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I bought the Orbit Microloader Pro. Since electrics are becoming an increasing part of my RC Heli hobby I don't want to get caught in the "ugrade to new charger every season" game. So, I bought the best on the market and have about as permanent of a solution as possible. Besides, we all KNOW that the day is coming when we will all be flying electrics more than glows.

Also, Orbit upgrades their chargers by letting you purchase a new e-prom chip that is plug-n-play. For instance, suppose they change the charging method or rate in the Li-Poly charge mode I don't have to go buy a new charger. Just a ~$25 chip.

Hands down the best charger on the market. If you guys start flying larger electrics then you'll be wishing you had bought the next best charger.

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06-07-2004 10:19 PM  13 years agoPost 12
pet_heli

rrNovice

Portland, Oregon

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About the triton's constant current: ? I've watched mine and it doesn't do that... It starts low, and then goes up, and as the battery gets closer to being charged, the amps indicator on the lcd goes back down to 0.0 before it beeps that it's done...

Can somebody explain?

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