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 Post subject: Rx Battery Questions
PostPosted: Mon May 22, 2006 00:13:29 
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Joined: Thu Mar 02, 2006 01:57:05
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Location: Ingersoll, ON, CAN
I Finally got my NT18 electronics package and already have questions about cycling the battery. I have two chargers. I have a LRP Pulsar Competition 2 and a CE Turbo 35 GFX. Which charger should I use for cycling and what are the exact setting that I should use for cycling? I can't charge lower than .1a, not the recommended .07a.


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PostPosted: Mon May 22, 2006 09:58:21 
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Location: Las Vegas, NV
1 amp is ok. battery pack rated @.700mah, not.007amps. Just keep an eye on it, go by temperature. Do not let it overheat. If your charger has capability to charge by time, 20 minute is suffiant. or trickle charge it. trickle charging usually set at .50 amps, you can leave on charge an hour.


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PostPosted: Mon May 22, 2006 16:04:14 
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Location: Ingersoll, ON, CAN
So you don't have to cycle the battery before using it? The battery had a sticker with the directions on how to cycle the battery before using for the first time.


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PostPosted: Mon May 22, 2006 18:11:03 
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Location: Denmark, copenhagen
you should use the 0.1A charge current close to the 70mah you should cycel the battery with the first coupel of times.
I charged It with 0.1A for 13 hours the first 2 times, after that I have charged them with 0.7A and my packs performs perfect both in my nt18 and nt18t


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PostPosted: Mon May 22, 2006 18:28:31 
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Location: Ingersoll, ON, CAN
What should I set my peak-detection (delta peak) to? Is that per cell or for all 4 cells combined?


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PostPosted: Mon May 22, 2006 20:12:37 
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I have set my peakdetction to 4 mv in total on the pack (not 4mv for each cell) thats works perfect I´ll get around 800mah in my packs when i charge them at 0,7A


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PostPosted: Mon May 22, 2006 20:21:31 
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Location: Ingersoll, ON, CAN
So I should set the peak detection at 4 mv when I first cycle the battery pack?


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PostPosted: Mon May 22, 2006 20:24:29 
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Location: Denmark, copenhagen
yep and just keep it here when charging this littel pack.
If you go higher the temp of the battery will probaly get to
high and that will shorten the life of the pack


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PostPosted: Mon May 22, 2006 20:28:32 
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but be aware that the first coupel of times you will have a lot of false peaks. I forgot to tell you that I temp charged them the first 2 time, to avoid the false peak. you can use you ma counter you see if it´s false peak and restart charging aslong as it havent reached 700 ma


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PostPosted: Mon May 22, 2006 20:33:11 
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I really dont think you need Peak detection, cuz your are lookin for run time not speed. Since your chargin' the first time. use trickle charger for 13 hrs. let stand 24 hrs, then discharge. then repeat process. Ni-Cd you can charge up to 3X the capacity. Ni-Mh you shouldn't. Two different Chemistry of battery. NiMh use 700mah or 1amp


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PostPosted: Mon May 22, 2006 20:44:06 
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If your charger has timed charge, it would be nice. If not, keep a eye on it. You don't want the shrink wrap to melt, mean you cook it, or overcharge the pack. and just altered the life of the pack. Some chargers shut it self off completely went charged.


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PostPosted: Mon May 22, 2006 20:57:57 
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Location: Ingersoll, ON, CAN
So let me get this straight. I should first cycle the battery at .1 amps with a peak detection at 4 mv? My LRP charger only goes as low as 5 mv for peak and the CE Turbo35 GFX goes as low as .01 v for peak. Which charger should I use and how should I set the settings?


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PostPosted: Mon May 22, 2006 21:15:06 
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I would use the lrp one at 5mv.deltapeak and 0,1A charge current.


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PostPosted: Mon May 22, 2006 22:43:36 
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Cycling the pack is conditioning to take the charge. Trickle charge it for 13 hrs. then let it sit 24 hr. then discharge the pack. repeat process, excluding 24 hr wait. Discharge. Final Charge 1amp, Won't take you more then 30 min, just watch the temp. This will teach you how long it takes to charge.
Peak detection Do Not Need, decide after track time. I don't think you need it, cuz, you're not runnin' a electric motor. motor it take amps to run.


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PostPosted: Mon May 22, 2006 22:49:46 
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I've been runnin 700mah Ni-CD for 7 years on my Serpents, Just change the to 1200mah Ni-MH. expecting to last just as long. The differance between Ni-cd & Nimh, is NiMh dont have memory, and they last longer. That why conditioning is important. Takes time .be patient!!


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