ROAR to change lipo voltage to 4.20 and 8.40
12-22-2009, 07:55 AM
#61
If it was up to me, you would be removed from the event.
Have you ever been hit by the NiMh projectiles when they exploded?
Have you ever had $2000 worth of race equipment ruined because of a LiPo fire in your pit?
The punishment is light and a slap on the hand if you ask me?
It's a safety thing dude
Have you ever been hit by the NiMh projectiles when they exploded?
Have you ever had $2000 worth of race equipment ruined because of a LiPo fire in your pit?
The punishment is light and a slap on the hand if you ask me?
It's a safety thing dude
Yes on the NiMh, no on the lipo fire. I've never even heard of it happening in RC racing (yes I've seen the overcharge videos on youtube). If it has I doubt it was from a battery getting to 8.44V. Like I said, if someone goes over 8.44 have at it. Throw them out. But do you really want to spoil someone's weekend in which they took time off work and spent good money on an event because their charger isn't accurate and charged to 8.42 instead of 8.40V? Not very receptive IMO.
Wasn't it the Core RC chargers that were overcharging at the first ROAR event after lipos were made legal?
12-22-2009, 07:58 AM
#62
If you have unintentionally had first hand experience of any cell explode you will know safety is paramount. Personally, I have with some IB4200, and at the time, did not think I would be hearing out of one ear again... Can you put a price on a hobby?
If you have intentionally had first hand experience of any cell explode... well... I would have to question pitting next to you.
Rules about safety to me, are zero tolerance. I probably didnt think too much about them before my incident though...
In short, the rule got tightened to stop an advantage, and more importantly, to promote safety. I call that a good move if even 1 cell didnt explode/whatever at 8.4 but did at 8.44...
If you have intentionally had first hand experience of any cell explode... well... I would have to question pitting next to you.
Rules about safety to me, are zero tolerance. I probably didnt think too much about them before my incident though...
In short, the rule got tightened to stop an advantage, and more importantly, to promote safety. I call that a good move if even 1 cell didnt explode/whatever at 8.4 but did at 8.44...
12-22-2009, 08:00 AM
#63
But do you really want to spoil someone's weekend in which they took time off work and spent good money on an event because their charger isn't accurate and charged to 8.42 instead of 8.40V? Not very receptive IMO.
Wasn't it the Core RC chargers that were overcharging at the first ROAR event after lipos were made legal?
Wasn't it the Core RC chargers that were overcharging at the first ROAR event after lipos were made legal?
12-22-2009, 08:08 AM
#65
If a person spent good money to come to an event and at the end of the day is not following the rules I have zero sympathy for them. Do I feel bad yes, I don't want to DQ a racer for anything, but rules are rules, if you choose to NOT follow the rules there are implications. Like I said I have my voltmeter available to everyone, if that person decides not to use it, it's on them, if they're overcharging their batteries it's on them.
12-22-2009, 08:10 AM
#66
Roar allows LiPo's - racers complain because they have to buy new chargers
Racers read the rules and complain because their chargers that they just bought don't charge to 8.44V.
Charger company's complain because now they have to rewrite their software to maximize the allowance knowing the entire time that 8.40V is the rule. But they still do it because racers demand it
Racers complain because they have to spend more money to send the chargers back to the company to get updated...sometimes twice if you run a GFX.
Sounds like it's worked great
Racers read the rules and complain because their chargers that they just bought don't charge to 8.44V.
Charger company's complain because now they have to rewrite their software to maximize the allowance knowing the entire time that 8.40V is the rule. But they still do it because racers demand it
Racers complain because they have to spend more money to send the chargers back to the company to get updated...sometimes twice if you run a GFX.
Sounds like it's worked great
The rule did change. A 4.22/cell battery was legal in 2009 and it won't be in 2010. The 'tolerance' rule was set in place for the chargers that went a bit over. Some charger companies came out with a upgrade to run the batteries to 8.44, where they were being teched. Now the little guy whose charger runs a bit over 8.40, and forgets to check his battery one time will be banned from the event WTF.
LiPo dischargers will out next that will run your battery down 4.2049v/cell
12-22-2009, 08:13 AM
#67
I know I said it was my last post but this really is... It isn't them not following the rules. If it is a charger accuracy problem then it is the charger not following the rules. Completely understand the voltmeter being available but if it is truly a safety issue then saying it is "OK" to run them down in the pits doesn't really address the safety issue, does it? Like I said, the tolerance seems like it was a good idea to address accuracy problems with chargers. Now if someone got their charger upgraded to 8.44 and then there is an accuracy problem then throw the book at them. Those of us with 2 year old inexpensive chargers that are just inaccurate should get some slack (if it is within +/- .05% of 8.4v)
3 years ago there was a huge variance in voltage from one charger to the other, now, 3 years later those companies have had more than enough time to refine their software to charge their batteries properly. Chargers are 400% more accurate than 3 years ago.
And if someone got their charger upgraded to 8.44 and they read the roar rules that have been there they wouldn't have done it in the first place
12-22-2009, 08:17 AM
#68
And now the chargers need to be upgraded again, Schmacher should sell chargers.
The rule did change. A 4.22/cell battery was legal in 2009 and it won't be in 2010. The 'tolerance' rule was set in place for the chargers that went a bit over. Some charger companies came out with a upgrade to run the batteries to 8.44, where they were being teched. Now the little guy whose charger runs a bit over 8.40, and forgets to check his battery one time will be banned from the event WTF.
LiPo dischargers will out next that will run your battery down 4.2049v/cell
The rule did change. A 4.22/cell battery was legal in 2009 and it won't be in 2010. The 'tolerance' rule was set in place for the chargers that went a bit over. Some charger companies came out with a upgrade to run the batteries to 8.44, where they were being teched. Now the little guy whose charger runs a bit over 8.40, and forgets to check his battery one time will be banned from the event WTF.
LiPo dischargers will out next that will run your battery down 4.2049v/cell
We do sell chargers, and 3 of them over the past 2 years charged higher than 8.40V, they charge to 8.40V and are $99.99
12-22-2009, 08:23 AM
#71
I was thinking about trying to make it to the roar onroad nats this year in norcal.. but I think ill pass!
"sorry, the tires you opened out of the package are .0001 milimiters too wide, you are DQ'd and banned from the event.... Sorry you wasted $1000 with car rental fees, gas, hotel fees for a week, and a week off work, but rules are rules!".
"sorry, the tires you opened out of the package are .0001 milimiters too wide, you are DQ'd and banned from the event.... Sorry you wasted $1000 with car rental fees, gas, hotel fees for a week, and a week off work, but rules are rules!".
12-22-2009, 08:26 AM
#72
I was thinking about trying to make it to the roar onroad nats this year in norcal.. but I think ill pass!
"sorry, the tires you opened out of the package are .0001 milimiters too wide, you are DQ'd and banned from the event.... Sorry you wasted $1000 with car rental fees, gas, hotel fees for a week, and a week off work, but rules are rules!".
"sorry, the tires you opened out of the package are .0001 milimiters too wide, you are DQ'd and banned from the event.... Sorry you wasted $1000 with car rental fees, gas, hotel fees for a week, and a week off work, but rules are rules!".
12-22-2009, 08:30 AM
#74
[QUOTE=abailey21;6751367]
Charger company's complain because now they have to rewrite their software to maximize the allowance knowing the entire time that 8.40V is the rule.
But they still do it because racers demand it
QUOTE]
it's called CAPITALISM.
its how all of us are able to afford this hobby in the first place.
Charger company's complain because now they have to rewrite their software to maximize the allowance knowing the entire time that 8.40V is the rule.
But they still do it because racers demand it
QUOTE]
it's called CAPITALISM.
its how all of us are able to afford this hobby in the first place.
12-22-2009, 08:31 AM
#75
The same battery is legal as last year, that's not different The 8.44v batteries can be run then? is that what your saying?
We do sell chargers, and 3 of them over the past 2 years charged higher than 8.40V, they charge to 8.40V and are $99.99 Is that why your being a dick so you can sell a $100 or $99.99 charger.
We do sell chargers, and 3 of them over the past 2 years charged higher than 8.40V, they charge to 8.40V and are $99.99 Is that why your being a dick so you can sell a $100 or $99.99 charger.
BTW unless you are teching in the pits how are you enforcing saftey? If a persons charger runs a battery up over 8.40, and they then discharge it to your limit, is there still not a risk of that dreaded lipo fire that your so afraid of? A lipo doesnt just spontaniastly combust, first it heats up then it swells all the time giving you a chance to unplug it and run it outside.
Most indoor facilities require LiPo bags, doesn't this solve the lipo fire problem?