Does a 4.2 motor need a larger battery?
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barto_85.
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August 26, 2003 at 4:06 pm #11100
I’m gonna buy a new Mini RC car and it comes with a Perfection King 4.2 motor (or something close to that) and I was wondering if the stock battery provides enough of a charge to run this for a good time? Do I need to buy a bigger battery? How long will it run off of a stock battery?
Please help me out!Edited by – Aaron on 27 August 2003 14:33:22
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August 26, 2003 at 4:17 pm #38531
Nah, it should run just fine, the stock battery can flow around 1500mah+ of current, the perfection motor uses about 200mah.
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August 26, 2003 at 5:52 pm #38534
I think they do have a slightly shorter run time, but nothing to worry about.
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August 27, 2003 at 9:52 am #17887
Think it’d be worth $3 to get a 200 mah battery? I’m gonna be ordering 2 LXX Char-g’s from Toyeast and I can get the 200 mah battery for $3 think it’d be a good idea to go ahead and order the bigger battery? Also does anyone know if the LXX’s charger has a timer on it? Or does it charge until the battery is full..because if it was on a timer that means with a bigger battery I would have to charge it 2 or more times to get a full charge right?
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August 27, 2003 at 12:23 pm #38584
A larger storage battery would increase the runtime with a motor like that, which tends to drain he battery more than slower motors.
The lkarger storage battery will require extra charging, and I don’t think any charger in a controller detects if the battery is full, they just do timed charges suitable for the standard battery.
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August 27, 2003 at 1:05 pm #38587Quote:A larger storage battery would increase the runtime with a motor like that, which tends to drain he battery more than slower motors.
The lkarger storage battery will require extra charging, and I don’t think any charger in a controller detects if the battery is full, they just do timed charges suitable for the standard battery.
Reminder: The standard charger only puts about 5mah into the battery, so if you use a nicad or a nimh they are both ok.
If you use a different charger, you can get 30 mins runtime from a stock tomy battery, and 1hour+ from a nimh cell.
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August 27, 2003 at 1:19 pm #38588Quote:Quote:A larger storage battery would increase the runtime with a motor like that, which tends to drain he battery more than slower motors.
The lkarger storage battery will require extra charging, and I don’t think any charger in a controller detects if the battery is full, they just do timed charges suitable for the standard battery.
Reminder: The standard charger only puts about 5mah into the battery, so if you use a nicad or a nimh they are both ok.
If you use a different charger, you can get 30 mins runtime from a stock tomy battery, and 1hour+ from a nimh cell.
So what are you saying lol.
1. I’m going to have to charge the larger battery 2-3 times to get it full.
2. I can some how get longer battery life out of even the smaller batteries by getting a new charger (how?)
3.”The standard charger only puts about 5mah into the battery.” Wha? So you’re saying I have a 200mah battery and it’s only being charged 5mah per charge? Saying I could charge it 40 cycles to get it full? I don’t understand something but I’m not quite sure what it is.If you can’t tell I’m really new to this…
Also how many times should I charge one of these new 200mah batteries? Because from what I hear if you don’t fully charge them the first time you charge them you’ll never get a full charge out of them.
Edited by – oxhadokenxo on 27 August 2003 09:21:14
Edited by – oxhadokenxo on 27 August 2003 09:23:35
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August 27, 2003 at 3:12 pm #38227
Yeah. Jamie. Tell me more. What sort of charger? What level of charge?
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August 27, 2003 at 3:54 pm #38229
This is getting a bit techo fo rthe general chat section, how about we move it.
Dave, delta peak chargers do amazing things for BCGs
:)uA
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August 27, 2003 at 4:42 pm #38233
Even a simple LM317/LM350 charger which only costs a few dollars to make does wonders.
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August 27, 2003 at 5:35 pm #38235
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August 28, 2003 at 12:01 am #38198
can u just double charge the normal battery??
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August 28, 2003 at 4:54 am #38203Quote:can u just double charge the normal battery??
I emailed a guy who was selling them and he said you could charge it 4 times to get it full since it is 200mah and the stock batteries are 50mah. After the first charge I guess you could just charge it as many times as you wanted (less that 5 of course)it just wouldn’t be full if you didn’t do it 4. But for the first charge you have to make sure it’s full or you will never be able to get it full. He said there was directions on the internet how to change the timer on the charger to charge for longer so you won’t have to put the car on and off 4 times to get it full (anyone know a link that has directions?). Jamie where can I see directions on how to make/buy a LM317/LM350 charger?
On second though this is getting a little too technical for me lol.
Has anyone tried using a stock battery with a regular 45 second charge with a 4.2 motor and saw how much time they got out of theirs? I either am going to just buy the battery and charge it 3 or 4 times or just use my regular battery and charge 3-4 times as often lol. OR are you guys saying I can get more out of my stock battery (that comes in a LXX Char-G)if I charge it 3 cycles instead of 1 cycle, which makes the 200mah battery useless.Edited by – oxhadokenxo on 28 August 2003 01:08:07
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August 28, 2003 at 1:21 pm #38217
oxhadokenxo, if you are ok with electronics and soldering, an LM317 charger is your best bet, but it has no timer, so you will have to remember to take it off after 8-10 minutes. But a simple timer circuit could be made quite easily.
Charging a normal cell 4 times still won’t fully charge it, and it wastes your AA batteries quicksmart.The stock tomy battery is made by SANYO, it is very robust, more so than most NiMH cells.
The TOMY cell will handle up to about 600mAh charge current (at this current level it should take about 5-8 minutes to charge), and will last 1/2 an hour with a 2.2 motor.Remember, the faster you charge a cell, the shorter it’s service life will be.
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August 28, 2003 at 1:30 pm #38218
The circuit….hmmmm i got it out of my “National Semiconductor Data Book”, just trying to think where i could find it….ah! found it!
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August 28, 2003 at 1:31 pm #38219
I’ve got a stock battery, but i’ve only used a 3.8, but I wouldn’t say that it greatly affects your run time compared to a 2.6 or a 2.2
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August 28, 2003 at 1:44 pm #38220
Huh? you haven’t ever used a 1.0/1.6/2.2/2.6 with the stock battery?
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August 28, 2003 at 2:17 pm #39396
sorry, what I meant was, the highest I had used was a 3.8, because he asked about a 4.2, so I was just saying, i’d only gone as high as a 3.8, but I dont think it greatly affects the run time compared to a 2.6 or 2.2
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August 28, 2003 at 2:43 pm #39328
The fastest motor i own is a TOMY lucifer rotor 3.0……..
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August 28, 2003 at 3:10 pm #38012Quote:oxhadokenxo, if you are ok with electronics and soldering, an LM317 charger is your best bet, but it has no timer, so you will have to remember to take it off after 8-10 minutes. But a simple timer circuit could be made quite easily.
Charging a normal cell 4 times still won’t fully charge it, and it wastes your AA batteries quicksmart.The stock tomy battery is made by SANYO, it is very robust, more so than most NiMH cells.
The TOMY cell will handle up to about 600mAh charge current (at this current level it should take about 5-8 minutes to charge), and will last 1/2 an hour with a 2.2 motor.I’m not good with electronics and soldering (never soldered anything..building this computer is the closest I’ve came to being good with electronics). Are you basically saying it’s pretty much a waste to buy the 200mah battery because the stock battery can hold a lot it just never charges? So buying a 200mah battery and charging it 4 times would give me the same run time as using a stock battery and charging it 4 times? And by the faster you charge the battery the faster it’s life will run out you mean that if you hook it up to like a quick charge to charge it in 10 seconds it won’t last near as long as if you charge it the same amount just charge it for 1 minute to get it there.
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September 2, 2003 at 3:13 pm #35463
What i am saying as there is plenty of potential on tap from the stock battery. If you fully charge a 200mah battery its even better.
What i mean by the battery’s life shortening, is that it might last 1000 charges if you charge it at 7ma for 14 hours each charge.
It might last only 200 charges if you fast charge it.
The faster you charge a battery the more heat is dissapated and the less efficient the charge is. But it hell beats waiting.
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September 2, 2003 at 3:13 pm #35760
What i am saying as there is plenty of potential on tap from the stock battery. If you fully charge a 200mah battery its even better.
What i mean by the battery’s life shortening, is that it might last 1000 charges if you charge it at 7ma for 14 hours each charge.
It might last only 200 charges if you fast charge it.
The faster you charge a battery the more heat is dissapated and the less efficient the charge is. But it hell beats waiting.
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