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Old 12-27-2001, 08:46 PM   #241
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Danny,
I've just started running 12th scale stock and need an educated opinion on batteries for 12th scale stock. I'm currently running some SMH's. Run time is not a problem but they seam to lack a bit of punch. I know it's not the motor or gearing. could you give me some recomendations on how I should be charging and maintaining these batteries. Could you also give me recomendations on the HV's as I have just purchased a pack and ran it for the first time last night. The HV's didn't seem any better than my SMH's. Any info or help would be truly appreciated.

Ruben

Last edited by schurcr; 12-27-2001 at 08:50 PM.
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Old 12-27-2001, 09:42 PM   #242
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Quote:
Originally posted by schurcr
Danny,
I've just started running 12th scale stock and need an educated opinion on batteries for 12th scale stock. I'm currently running some SMH's. Run time is not a problem but they seam to lack a bit of punch. I know it's not the motor or gearing. could you give me some recomendations on how I should be charging and maintaining these batteries. Could you also give me recomendations on the HV's as I have just purchased a pack and ran it for the first time last night. The HV's didn't seem any better than my SMH's. Any info or help would be truly appreciated.

Ruben
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Old 12-27-2001, 11:24 PM   #243
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Ya know there's gota be a jack a$$ in every bunch. Hey Big Pup.. stick to what you do best, paint, if that's what you call it.

Man dude it's been a while, hope all is well drop me a line sometime.

Ruben
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Old 12-28-2001, 12:03 PM   #244
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hey guys,
i know this car has probably been asked before but what setting to charge hv's on a millenium? i normaly charge my 3000's on 4.5-5.5 amps. no higher and 0.2 peak detect or somthin...how should i charge me hv's for mod tc
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Old 12-28-2001, 12:27 PM   #245
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speedo: You can't compare Lavco IR numbers. It seems like all there cells are within .3 milliohms which is a very tight range. It's probably because they use a different way to achieve the IR or they do the test at a different point of the discharge curve.
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Old 12-28-2001, 12:29 PM   #246
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Greg: I have a driver I sponsor in England and he had mentioned to me that they weren't very punchy. I gave hime my charging advise and he told me that they almost had to much power. This is a good thing to hear. They use a 12 turn motor limit so extra power from the pack is always appreciated.

Let me know what you find out ?
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Old 12-28-2001, 12:33 PM   #247
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shurcr: I can assure you the HV's are better than the SMH's in all classes. Don't expect them to make a huge difference but they do make one.

For SMH's I would charge at 5 or 6 with a .03 peak detect.

The HV's I would use 8 or 9 with a .07 peak detect.

On a Novak I believe that would equal to 8mv per cell for the SMH's and 18mv for the HV's.

Good Luck.
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Old 12-28-2001, 12:34 PM   #248
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Demonracer: look at my previous posts for your answer.
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Old 12-28-2001, 07:17 PM   #249
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Danny, I just purchased two packs of your 3000HV's and the numbers on the label are awesome, both packs are stating 1.155 for every cell. I plan on charging and discharging them like you instruct to on your web site(1 peak 6A charge with a .07 drop/discharge to 5.40 using a 30 amp load). I'll use an equalizer tray so I can gain some volts but will it hurt the cells in the long run if I leave them in the tray untill they reach .5V per cell? Also, can you repeak them or will this also hurt the performance of them in the long run? I guess I'm trying to get the best of both worlds.
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Old 12-28-2001, 07:53 PM   #250
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Quote:
Originally posted by schurcr
Ya know there's gota be a jack a$$ in every bunch. Hey Big Pup.. stick to what you do best, paint, if that's what you call it.

Man dude it's been a while, hope all is well drop me a line sometime.

Ruben
LOL-- Don't make me come to Cali and open up a can o' good ol' Memphis whoopa$$ on YA!!! (on the track that is...)

Things are well here- trying to figure out how to scrape borrow or steal (j/k) enough money to come to the Carpet Nats. Is that offer still open????

Talk to ya soon,
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Old 12-29-2001, 07:31 AM   #251
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Hey Danny,
When charging on the New Millenium Pro, should I stick with charging the HV's in the NIMH II mode, or shoud I switch to the NiCD mode where I can adjust the peak detect down to .07 for HV and .03 for SMH's. The NIMH II mode is great, but it seems to be locked in where you can't change any of the perameters of the charge, other than the amperage setting.

Feedback appreciated,

Greg Anderson
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Old 12-30-2001, 04:30 PM   #252
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Has anyone here used Acer's 6% silver solder? Was there a problem melting it? It's 94% tin/6% silver, no lead. I beleive that I'll have trouble melting it since it contains 0% lead. Serious inquires please reply.
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Old 12-30-2001, 06:10 PM   #253
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Danny you were right (in your conversation w/Billy) ...those cells I toasted and cycled (see my last post), I built back into a pack and cycled the pack, didn't loose a beat ..there is a little variance from "pre-melt numbers" but nothing major I'm sure the same variance as would have happened anyways; the numbers are still better than my best SMH pack. Here are the numbers:

Before Melt Down - Vlts 9.69, IR 154, Act IR 26.9, MAHR 2869, MWHR 20112, Dsch Time 515, Ds Avg Vlt 7.03, Ds Avg Vlt @ 1 Volt 7.29

After Melt Down - Vlts 9.56, IR 146, Act Ir 26.8, MAHR 2727, MWHR 19089, Dsch Time 491, Ds Avg Vlt 7.00, Ds Avg Vlt @ a Volt 7.26

And just so you can appreciate the "damage" done, here is a pic of the pack as rebuilt.

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Old 12-30-2001, 07:35 PM   #254
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Wow, you really did give the damn things a beating!
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Old 12-30-2001, 10:38 PM   #255
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Danny,
Haven't heard from you on my post, but I decided to try charging the HV's under the NiCD setting with my Millenium Pro yesterday. I charged my HV's at 7.0 amps with a voltage threshold at .05. Holy cow, these things really did come alive. Now I believe the statement that at 9.0 amps they may have too much power. Do you think there would be any long-term effects of charging these cells at this level for the life of the cell. I'm not willing to blow these cells out for the increase in punch if they are only going to last for a short while.

Thanks,
Greg Anderson
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