Triton Charger Issue

Triton Charger Issue
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Triton Charger Issue - 8/28/2005 9:48:45 PM

srg123cohen

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I am having an issue with my Triton charger and my JR 4 cell 1400mah nicad. When I discharge it and then charge it it doesent charge or discharge the full capacity. I found the only way i could get it to discharge the full capacity was when it was charged on the jr wall charger.

Anyone have any suggestions?

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RE: Triton Charger Issue - 8/28/2005 10:35:13 PM

guver

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If you will post some numbers and settings we will see if the settinga are at fault. It sounds like your discharge is ok because it does good when charged up by the wall-wart. It may be the charge settings? if it don't charge up all the way it willl discharge only that amount too.

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RE: Triton Charger Issue - 8/29/2005 12:58:49 AM

srg123cohen

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I think i found a solution by using the nimh setting for it works. I wouldnt have tried this but it said it was ok with a peak detection of 10 mv on rcbatteryclinic.com

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RE: Triton Charger Issue - 8/29/2005 8:32:19 PM

srg123cohen

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Ok nevermind it didnt work. Like i said before it is discharging but not charging to full. My settings are charge 1.4a 10 mv peak detection and no timer shutoff. What should my setup be. the pack is not the issue because i can charge it on the wall charger and it charges full.

HELP

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RE: Triton Charger Issue - 8/29/2005 9:10:12 PM

JNorton

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Maybe we are having a communications problem here. Your charge settings look okay.

What are your discharge settings? They should be about .9Volt per cell = 3.6 volts and C/5 or 280 mA discharge current. Are we reading apples to apples? Also you cannot use the input cuurent used to charge the pack to determine if your pack is fully charged. The pack will always have some charge left in it so the readings won't be accurate.

To check the pack capacity I fully charge them using a wall wart charger at C/10 rate for 14 to 16 hours. The I discharge them with the Triton and read the pack capacity. Now you've got an accurate baseline to compare.

The Triton doesn't fully charge a pack to 100 percent capacity. It charges it to about 95 percent then trickle charges the rest. This is a quote from the manual “NiCd charge” and “NiMH charge:” Triton utilizes the “zero deltaV” peak detection method to charge NiCd and NiMH batteries with linear current. This method can result in a battery safely reaching 95 to 98% full charge, after which time Triton will automatically switch to a gentle trickle charge current. Trickle charge will help the battery safely reach its 100% full charge potential."

I've also found that the Hobbico charging leads a lot of people buy (including me) are too long and too wimpy. They seem to be about a #26 gage wire. Find a good 22 gage servo extension and use that for the receiver pack. Mine is only a foot long. I use 16 to 18 gage wire to charge everything else. Radio shack sell a charger plug that will fit you transmitter.

John

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RE: Triton Charger Issue - 8/29/2005 9:35:14 PM

srg123cohen

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When discharging i use .3 amps. My issue is that i will discharge the pack completley and then charge it up and only a couple hundred MAH will go in.

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RE: Triton Charger Issue - 8/29/2005 9:50:42 PM

JNorton

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quote:

My issue is that i will discharge the pack completley and then charge it up and only a couple hundred MAH will go in.

I understand that. What is your discharge voltage set to?

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RE: Triton Charger Issue - 8/29/2005 9:57:01 PM

srg123cohen

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3.6 the issue isnt with the discharge at least i dont think it is

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RE: Triton Charger Issue - 8/29/2005 10:04:30 PM

JNorton

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I give up. I wish we were sitting next to each other talking. Getting you to answer a question so I can figure out what it is your "not" saying is impossible when your trying to figure it out yourself.

I was trying to determine exactly how you are determining that the charger isn't charging to a full capacity. If you are using the input charge rate I've already stated you will never see full capacity. If you are using the Triton in a discharge mode to tell that capacity of the pack then I wanted to know if the settings were right. If the lower setting is too high it will falsely tell you that the pack is not getting fully charged, when it is.

If indeed you are not getting the pack fully charged to 90% then call support.
electronicsupport@greatplanes.com
Telephone: 1-217-398-8970. Available Monday-Friday, 8am-5pm U.S. Central Time.

John

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RE: Triton Charger Issue - 8/29/2005 11:20:19 PM

guver

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would you say that when charged by the wall charger you can get the capacity by dischargeing on triton?

Your settings seem ok, maybe cut the rate in half for chargeing about .5 amps. I also don't know what that manuel means when it says zero peak as the 3mv per cell is the minumum and that is a negative peak?

You can also have a bad/weak cell? causing the discharge to terminat early.

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RE: Triton Charger Issue - 8/29/2005 11:46:23 PM

JNorton

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The problem has been he hasn't said. He knows but he hasn't let us know how he is checking battery capacity.

We do know
"JR 4 cell 1400mah nicad"
"My settings are charge 1.4a 10 mv peak detection and no timer shutoff. "
"When discharging i use .3 amps"

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RE: Triton Charger Issue - 8/30/2005 3:39:11 AM

srg123cohen

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Im really sorry for the confusion. The way i know the pack isnt fully charged when the triton says it is, is because i can turn it on again and get another hundered to 200 mah out of it. Is there anything else i can say to help?

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RE: Triton Charger Issue - 8/30/2005 11:15:15 AM

JNorton

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quote:

The way i know the pack isnt fully charged when the triton says it is, is because i can turn it on again and get another hundred to 200 mah out of it. Is there anything else i can say to help?

This is only telling you that the Triton doesn't fully charge a pack. What you are seeing might be normal. It only charges it to 90-95% then must be left on to trickle charge the pack the rest of the way. Also you are looking at the mAh being put into the battery which is not an accurate measure of capacity. Lets do a test to find out.

Try this. Charge the battery with your JR wall charger. Then use the discharge function of the Triton to see what capacity your battery is. This is an accurate method of checking capacity. Use 3.6 volt and .3 amp discharge rate. Tell us what you get. Next charge the pack with the Triton. Use a charge of .7 Amp 10 mv peak detection and no timer shutoff. Then use the discharge function again and tell use what you get.

John

< Message edited by JNorton -- 8/30/2005 11:19:25 AM >

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RE: Triton Charger Issue - 8/30/2005 7:57:12 PM

srg123cohen

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Will do thanks

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