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How do you maintain your NiMH Batteries?
Just wondering what you guys do. I didnt have a discharger for a while and when I finally got someone to discharge my batteries peaked 800mAh before their rated capacity. So how many mAh and voltage are you getting if you have a discharger/Smart Tray or if you just charge , charge charge how many mAh and voltage do you get from your batteries? (I hope you let your batteries cool 2+ hours before recharging) How many amps do you charge your batteries at?
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RE: How do you maintain your NiMH Batteries?
I remember...
On the thread, I run them, then I charge them. Run, charge, run charge, repeat as needed. My batteries have lasted me a couple of years. |
RE: How do you maintain your NiMH Batteries?
Never discharge, balance infrequently, store in any sod, charge fast right before using.
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RE: How do you maintain your NiMH Batteries?
I always tray them before charging, so all the cells are equal to start. I store them with little or no charge in them, and only discharge at high amps when I'm cycling an old pack that's been sitting up for a long time.
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RE: How do you maintain your NiMH Batteries?
I don't race so perfect batts is not a big concern for me. I have considered, but have not done it yet, to occasionally give them a slow charge on the wall wart.
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RE: How do you maintain your NiMH Batteries?
I dist charger mine, at whatever my Mamba draws. LOL Then I charge them at 5 amps till they hit 110-115 degrees, then turn the amperage down to 3 amps, and charger them for 10-15 more minuets. I have done them this way, for the past 8 years, and mine are still going strong. (I do finish discharging my Ni-Cads though, before I re-charge them)
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RE: How do you maintain your NiMH Batteries?
1 Attachment(s)
Here's a nice way to 4-step charge . lol.
Using the ice and a 4-step charge it is possible to get a fast charge , yet cool battery. The only better way I've found is a gradual decrease in rate as the temp comes up. |
RE: How do you maintain your NiMH Batteries?
Discharge and Novak smart tray. After about a month of racing, then its all about the dead-shorting to keep them at peak.
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RE: How do you maintain your NiMH Batteries?
Hmmm. I just set the ice to automatic charge/automatic discharge, 2 cycles and done for maintenance. Things always peak at or above their rated capacity. I can't say enough about the ICE charger, it is a good one.
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RE: How do you maintain your NiMH Batteries?
I just cycle mine occasionally on my MRC 977 with the discharge/charge functions and mine still work awesome.
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RE: How do you maintain your NiMH Batteries?
I am still laughing on how more people didnt even think they had to do maintain on nimh than people who have a discharger/equalizer.
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RE: How do you maintain your NiMH Batteries?
ORIGINAL: Chris_RC I am still laughing on how more people didnt even think they had to do maintain on nimh than people who have a discharger/equalizer. you know you really shouldn't be all that surprised, battery maintenance isn't always talked about even when new people come into the hobby. And I'm sure its because most hobby shop people don't want to intimidate new comers with all this extra work they could be doing to keep there new investment in peak form. |
RE: How do you maintain your NiMH Batteries?
ORIGINAL: racerj3 ORIGINAL: Chris_RC I am still laughing on how more people didnt even think they had to do maintain on nimh than people who have a discharger/equalizer. you know you really shouldn't be all that surprised, battery maintenance isn't always talked about even when new people come into the hobby. And I'm sure its because most hobby shop people don't want to intimidate new comers with all this extra work they could be doing to keep there new investment in peak form. I let my batteries cool off 2+ hours before I recharge them and never charge my batteries (3300s and 4200s) over 5 amps and the batteries are matched and I only have 2400mAh on my gp3300s and 3600 on my ep4200s (I got the ep4200 from a pro who always cycled/trayed them) and I hear some people have their batteries for a couple years (I only have 40 runs on my batteries!!!!!) and dont have any problems with them. So I dont get what I am doing wrong. It looks like the Novak Smart Tray will help alot because on one of my batteries there is .89 volts per cell and the rest are 1.2-1.3 when discharged on a Integy 30 amp discharger and the cells are out of balance. |
RE: How do you maintain your NiMH Batteries?
do the same fore ep4200 and ib3800 discharge um on my mrc977 @4 amps (max) zap um @ 5 these packs were storted for like a month with a full charge (don't do that....) and they are only beginning to come back to full power, but before the storage, they peaked at like 8.5-9v 400mha over rated...
the lug |
RE: How do you maintain your NiMH Batteries?
ORIGINAL: Chris_RC ORIGINAL: racerj3 ORIGINAL: Chris_RC I am still laughing on how more people didnt even think they had to do maintain on nimh than people who have a discharger/equalizer. you know you really shouldn't be all that surprised, battery maintenance isn't always talked about even when new people come into the hobby. And I'm sure its because most hobby shop people don't want to intimidate new comers with all this extra work they could be doing to keep there new investment in peak form. I let my batteries cool off 2+ hours before I recharge them and never charge my batteries (3300s and 4200s) over 5 amps and the batteries are matched and I only have 2400mAh on my gp3300s and 3600 on my ep4200s (I got the ep4200 from a pro who always cycled/trayed them) and I hear some people have their batteries for a couple years (I only have 40 runs on my batteries!!!!!) and dont have any problems with them. So I dont get what I am doing wrong. It looks like the Novak Smart Tray will help alot because on one of my batteries there is .89 volts per cell and the rest are 1.2-1.3 when discharged on a Integy 30 amp discharger and the cells are out of balance. You need to condition your batteries to run the way you want them too. thats why battery trays and dischargers are around, you need to get the pack used to how your going to use it. For some reason this seems especially important with the higher capacity cells, and they just seem to respond better with higher charge rates, I charge mine between 5.5 and 6 amps. |
RE: How do you maintain your NiMH Batteries?
Screw nimh. I use lipo, its basically the "brushless" of the battery world.
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RE: How do you maintain your NiMH Batteries?
ORIGINAL: fusebmx13 Screw nimh. I use lipo, its basically the "brushless" of the battery world. |
RE: How do you maintain your NiMH Batteries?
Not to mention if you race many classes still require the use of nimh batteries.
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RE: How do you maintain your NiMH Batteries?
Yea i know this but its just way more worth it to get brushless/ lipo. Im not a racer but racing seems very fun. I have just messed around on a track before but i have to have brushless and lipo.
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RE: How do you maintain your NiMH Batteries?
I do not know of any tracks that still require brushed/nimh. Most of them follow ROAR rules.
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RE: How do you maintain your NiMH Batteries?
ORIGINAL: Chris_RC ORIGINAL: fusebmx13 Screw nimh. I use lipo, its basically the "brushless" of the battery world. i am planning on getting a Slash for Christmas, and i will be running it on gp3300 6 cells and the stock Titan. it will be waterproof, and it will be FUN! |
RE: How do you maintain your NiMH Batteries?
Well I dont know about brushless being faster. There are still some die hard nimh/brushed guyd and they seem to beat the brushless/lipo guys on the stirght by a foot or 2. It really comes down to driving.
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RE: How do you maintain your NiMH Batteries?
ORIGINAL: Chris_RC Well I dont know about brushless being faster. There are still some die hard nimh/brushed guyd and they seem to beat the brushless/lipo guys on the stirght by a foot or 2. It really comes down to driving. but to really appreciate a good brushless setup, you need lipo. they are power hungry, and NiMh just doesn't really cut it. |
RE: How do you maintain your NiMH Batteries?
If I had the money I would have a brushless/lipo but I dont :(. It would be great to get rid of all my comm stuff like lathe, brushes, oils but for $250 I think I will wait.
I dont agree with needing lipo for a brushless setup. Get a great nimh battery like the Orion SHO 5300 cells and that will beat a crappy 2s lipo any day if maintained. Plus the lipo weight advantage isnt an advantage because people just add the weight of their nimh back on the battery. So I could either get a Novak GTB/17.5 brushless motor for $250 and a Orion 3800 lipof and Novak LVC for $130 which =$380 OR just the stuff I have=FREE. With something that is soo close in perofmrnace, I will stay on the free side until I get some more money. Offtopic to A.D: You are only 30 minutes away from ocrc. (I google maped mission viejo to the address where ocrc is located) I would kill for living that close (I live over 2 hours away) Why dont you take the trip out there with your rustler or bandit 1 day and try it out. If you live within that distance to one of the best run rc facilties in the US and dont even go there, all I can say is...... http://smiliesftw.com/x/lolhit.gif |
RE: How do you maintain your NiMH Batteries?
ORIGINAL: Chris_RC If I had the money I would have a brushless/lipo but I dont :(. It would be great to get rid of all my comm stuff like lathe, brushes, oils but for $250 I think I will wait. I dont agree with needing lipo for a brushless setup. Get a great nimh battery like the Orion SHO 5300 cells and that will beat a crappy 2s lipo any day if maintained. Plus the lipo weight advantage isnt an advantage because people just add the weight of their nimh back on the battery. So I could either get a Novak GTB/17.5 brushless motor for $250 and a Orion 3800 lipof and Novak LVC for $130 which =$380 OR just the stuff I have=FREE. With something that is soo close in perofmrnace, I will stay on the free side until I get some more money. Offtopic to A.D: You are only 30 minutes away from ocrc. (I google maped mission viejo to the address where ocrc is located) I would kill for living that close (I live over 2 hours away) Why dont you take the trip out there with your rustler or bandit 1 day and try it out. If you live within that distance to one of the best run rc facilties in the US and dont even go there, all I can say is...... http://smiliesftw.com/x/lolhit.gif i would like to try and get down there, but i keep on putting it off. what class could i race my brushless rustler/lipo in? \ yes, a nice NiMh isn't bad. like i said, they are fine, i used them for a long time. (I got my lipos and T2 charger for really cheap from Ryan) |
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