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Old 01-05-2016, 10:32 AM   #51 (permalink)
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Lance's event sure opened my eyes. I've just gotten back into RC after years away- in fact I just got a new Axial Score Trophy truck for xmas. A few months back, I was given a Team Associated Apex drift car (tons of fun, btw!) and immediately upgraded from the Ni-MH battery (7.2V) to the biggest 11.1V LiPo battery on Amazon. I bought a pair of cheap ChiCom Fluoreon batteries, and have been using them without issue, other than having to modify the car to make them fit. I'm immediately skeptical of them after reading about all the issues with them. Right now, they're stored in a ceramic pot, with a lid, in the garage. I'll be buying a small fire safe cabinet to keep batteries in, and probably upgrade to some nicer batteries as these wear out. I'm not losing all my stuff to a $40 Chicom battery!

I don't think twice about my Makita batteries in the garage, but I don't keep them on the charger at all. I do keep my vehicles on battery tenders all the time...wonder how safe that is long term?
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Old 01-05-2016, 10:35 AM   #52 (permalink)
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Dumb Question

So is a LiPo battery affected by extreme cold temperatures like most other batteries?


Here in Idaho my son has played airsoft wargames during Winter when the frickin' temp. is around 8*F with a 2MPH breeze.
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Old 01-05-2016, 10:42 AM   #53 (permalink)
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Lance's event sure opened my eyes.

I do keep my vehicles on battery tenders all the time...wonder how safe that is long term?
Frickin' A-men to your first point.


What's the reason, with your last point ?

I hardly drive my DD any more due to commuting by bicycling and now being retired. It sits 90% of the time now.
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Old 01-05-2016, 10:46 AM   #54 (permalink)
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I charge four 6s Inspire lipos in this at one time. Not sure how in the hell I'm supposed to stick it in a battery bag. Even if I could, four burning batteries would probably still heat a bag enough to start burning stuff around it.

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Old 01-05-2016, 11:02 AM   #55 (permalink)
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Originally Posted by OlBlueCJ7 View Post
I charge four 6s Inspire lipos in this at one time. Not sure how in the hell I'm supposed to stick it in a battery bag. Even if I could, four burning batteries would probably still heat a bag enough to start burning stuff around it.

Are those four batteries on top?
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Old 01-05-2016, 11:09 AM   #56 (permalink)
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So is a LiPo battery affected by extreme cold temperatures like most other batteries?


Here in Idaho my son has played airsoft wargames during Winter when the frickin' temp. is around 8*F with a 2MPH breeze.
subfreezing temperatures are not good for LiPo batteries due to their chemistry. I wouldn't recommend using them in that environment.

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I charge four 6s Inspire lipos in this at one time. Not sure how in the hell I'm supposed to stick it in a battery bag. Even if I could, four burning batteries would probably still heat a bag enough to start burning stuff around it.

common sense would tell you to just put the charger in an are where there isn't a chance of open flames catching something on fire. It's not that hard.
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Old 01-05-2016, 11:14 AM   #57 (permalink)
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Keith's fire was caused by a nihm/nicd charger. I have the same charger and I don't leave it plugged in when it's not charging a battery.


There is zero need to be afraid of lipo batteries. Just understand that they need to be treated decent and you'll be 100% fine. Of the billions of lipo batteries out there what's the percentage of lipo fires that weren't 100% user induced? Maybe .001% tops? The slightest risk is worth the superior output of lipo.
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Old 01-05-2016, 11:18 AM   #58 (permalink)
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The slightest risk is worth the superior output of lipo.
So, you would use them in sex toys?
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Old 01-05-2016, 11:26 AM   #59 (permalink)
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So, you would use them in sex toys?
If I was into shoving things in my ass (sorry overtard it's not my thing) I'd be all over using lipo instead of alkaline. There is a much higher risk of major injury from 110v appliances such as Hitachi magic wand or a sybian.
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Old 01-05-2016, 11:36 AM   #60 (permalink)
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Keith's fire was caused by a nihm/nicd charger. I have the same charger and I don't leave it plugged in when it's not charging a battery.


There is zero need to be afraid of lipo batteries. Just understand that they need to be treated decent and you'll be 100% fine. Of the billions of lipo batteries out there what's the percentage of lipo fires that weren't 100% user induced? Maybe .001% tops? The slightest risk is worth the superior output of lipo.


There's actually a lot of concern over the use of "B" grade lipos. the name brand manufacturers buy "A" grade, meaning they have lower internal resistance, and are balanced better, by output.

"B" grade batteries are sold at a lower cost by the manufacturers to off brand companies that in turn sell them at a discount to the public.

The higher the internal resistance, the more likely the battery will fail. that failure can result in a fire because a high internal resistance means heat build up, and the battery can "run-away" on you once it gets hot enough, and catch fire.

so no, LiPo failures are not 100% user error.
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Old 01-05-2016, 11:42 AM   #61 (permalink)
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All I've ever used are B grade lipos. I've got some puffy 1300 3s packs from using them on brushless go fast rigs (discharged at too high of a rate) that have been running strong for 6 years since. The odds are so miniscule of their being an issue I don't understand the fear some people have for a battery.
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Old 01-05-2016, 11:55 AM   #62 (permalink)
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All I've ever used are B grade lipos. I've got some puffy 1300 3s packs from using them on brushless go fast rigs (discharged at too high of a rate) that have been running strong for 6 years since. The odds are so miniscule of their being an issue I don't understand the fear some people have for a battery.



So now there are grades of LiPo batteries ?!
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Old 01-05-2016, 11:57 AM   #63 (permalink)
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All I've ever used are B grade lipos. I've got some puffy 1300 3s packs from using them on brushless go fast rigs (discharged at too high of a rate) that have been running strong for 6 years since. The odds are so miniscule of their being an issue I don't understand the fear some people have for a battery.
I've had some pop. I don't like it. I've also seen some go up in flames at the track, sometimes taking the vehicle with it, one time taking part of the hobby shop with it. That one was from a sponsored racer who balance charged his batteries as a rule, and didn't keep them beyond about 20 -30 cycles. It was a 3 alarm fire at mikes' hobby shop in carrollton texas around 2012.

I get that you haven't had any issues, but that doesn't mean it can't happen. If you look at the link to rcgroups posted earlier, and the video I posted, it does happen.

running puffed lipo's isn't even allowed at a ROAR sanctioned racetrack because of the fire potential. It voids their insurance coverage.
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Old 01-05-2016, 11:59 AM   #64 (permalink)
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So now there are grades of LiPo batteries ?!
there always have been. It's the same as buying alkalines at the dollar store vs. buying top of the line energizers.

EDIT: I just realized how much I've been dominating this thread. If you guys want me to back off just tell me.

If not, a little background:
I've been in the r/c hobby since 1985, when I was 11. I started racing in 1986 and got my first sponsorship in 1989. I've built, customized and worked on r/c cars since 1991, off and on, as a side business. I raced regionally in Northern california in ROAR,NORRCA and the defunct R/C AMA circuits. To do that, I've had to learn how to maintain my vehicles, both the mechanics of them and the electronics. I have been running scalers/crawlers for the last few years, but will be getting back into racing next month.

Batteries are extremely important to that aspect, and will make or break a race. The basics are the same as running the old NiMh batteries:

You want the cells to have the same output, duration, and internal resistance. If you have one cell that is weaker than the others, it will create a bottleneck at that connection and build up heat. Build up enough heat, and it becomes unstoppable, rupturing the seal on the pack, and catching fire. I've done it with both NiMh and LiPo batteries. The difference is that the LiPo burns much hotter.
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Old 01-05-2016, 12:03 PM   #65 (permalink)
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there always have been. It's the same as buying alkalines at the dollar store vs. buying top of the line energizers.
My point is 'new-to-me' grades of said batteries.
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Old 01-05-2016, 12:11 PM   #66 (permalink)
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I've had some pop. I don't like it. I've also seen some go up in flames at the track, sometimes taking the vehicle with it, one time taking part of the hobby shop with it. That one was from a sponsored racer who balance charged his batteries as a rule, and didn't keep them beyond about 20 -30 cycles. It was a 3 alarm fire at mikes' hobby shop in carrollton texas around 2012.

I get that you haven't had any issues, but that doesn't mean it can't happen. If you look at the link to rcgroups posted earlier, and the video I posted, it does happen.

running puffed lipo's isn't even allowed at a ROAR sanctioned racetrack because of the fire potential. It voids their insurance coverage.
Don't get me wrong, I know shit can go sideways with lipos. I've had nihm and nicd cells vent a handful of times but never a lipo.

Most of the issues I've seen are from people not understanding how to treat the newer technology. They assume it's the same as nihm and treat them as such then they have issues and suddenly it's the batteries fault.


I have 2 pit bulls and I use lipo batteries regularly. I'm obviously living on the edge.
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Old 01-05-2016, 12:18 PM   #67 (permalink)
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Don't get me wrong, I know shit can go sideways with lipos. I've had nihm and nicd cells vent a handful of times but never a lipo.

Most of the issues I've seen are from people not understanding how to treat the newer technology. They assume it's the same as nihm and treat them as such then they have issues and suddenly it's the batteries fault.


I have 2 pit bulls and I use lipo batteries regularly. I'm obviously living on the edge.
The funny thing for me, is that my Hobbyking and Valuehobby packs in my crawlers are plugging along just fine, but my $$$$ ProTek 2S 75C 4200mah shorty pack popped on me

I wanna buy a couple of those little pitbulls. they look like they'd be fun in a skate park.

Like you, I think education is key. I still see people asking if they can use nimh chargers for their lipos
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Old 01-05-2016, 12:27 PM   #68 (permalink)
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I've used the nihm setting on my $30 chicom charger to bring back a dead lipo. If it's too low of voltage the charger won't recognize it. 15 seconds on nimh and it'll bring it back.


I have 2 pit bull dogs so I obviously live in fear that they will attack me in my sleep while my chicom lipos burn the house down around me.
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Old 01-05-2016, 12:31 PM   #69 (permalink)
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I've used the nihm setting on my $30 chicom charger to bring back a dead lipo. If it's too low of voltage the charger won't recognize it. 15 seconds on nimh and it'll bring it back.


I have 2 pit bull dogs so I obviously live in fear that they will attack me in my sleep while my chicom lipos burn the house down around me.
oops. I misread that then.

...or worse, they'll chew on your LiPo packs, catch fire and chew on you to your flaming death.

I may or may not have done the same for others as far as bringing back a lipo pack. It's not something I would recommend for anyone to do.
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Old 01-05-2016, 12:32 PM   #70 (permalink)
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Nope, I don't recommend "bump starting" a lipo either but fuggit, I had to try it.


Edit:

As far as skateboard park running my exo is a fawking blast! There is a park in a podunk town near me with a bad ass park that has a 10' tube you can do loops in or drive over. It's a riot but hard on parts.
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Old 01-05-2016, 12:50 PM   #71 (permalink)
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there always have been. It's the same as buying alkalines at the dollar store vs. buying top of the line energizers.

EDIT: I just realized how much I've been dominating this thread. If you guys want me to back off just tell me.

If not, a little background:
I've been in the r/c hobby since 1985, when I was 11. I started racing in 1986 and got my first sponsorship in 1989. I've built, customized and worked on r/c cars since 1991, off and on, as a side business. I raced regionally in Northern california in ROAR,NORRCA and the defunct R/C AMA circuits. To do that, I've had to learn how to maintain my vehicles, both the mechanics of them and the electronics. I have been running scalers/crawlers for the last few years, but will be getting back into racing next month.

Batteries are extremely important to that aspect, and will make or break a race. The basics are the same as running the old NiMh batteries:

You want the cells to have the same output, duration, and internal resistance. If you have one cell that is weaker than the others, it will create a bottleneck at that connection and build up heat. Build up enough heat, and it becomes unstoppable, rupturing the seal on the pack, and catching fire. I've done it with both NiMh and LiPo batteries. The difference is that the LiPo burns much hotter.
I made this thread to accumulate knowledge and experiences with LiPo batteries.


As long as you post your knowledge and/or experience, post as much as you want .

Fug everyone else !
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Old 01-05-2016, 01:16 PM   #72 (permalink)
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So educate us, What are the ramifications of throwing a battery in the trash ?
they are supposedly "environmentally friendly", but lets get real and figure that they are def not 100% good for the environment.

All it takes is one person to not prepare it for the landfill by discharging it completely or tossing one in that damaged but still has juice and it could still cause a fire. Why not treat it like other batteries and take it to Lowes or Best Buy or a similar place that will take it?
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Old 01-05-2016, 01:27 PM   #73 (permalink)
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Charge with the proper current for the size of battery
Charge outside
Use a decent charger or one specific for the battery, make sure it is set correctly for LIPO's
If damaged watch out
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Old 01-05-2016, 01:31 PM   #74 (permalink)
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they are supposedly "environmentally friendly", but lets get real and figure that they are def not 100% good for the environment.

All it takes is one person to not prepare it for the landfill by discharging it completely or tossing one in that damaged but still has juice and it could still cause a fire. Why not treat it like other batteries and take it to Lowes or Best Buy or a similar place that will take it?
Fires are good for the landfill. They burn underground and accelerate the decomposition process of materials by a factor of 1000. Okay, maybe not good.
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Old 01-05-2016, 02:43 PM   #75 (permalink)
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Frickin' A-men to your first point.


What's the reason, with your last point ?

I hardly drive my DD any more due to commuting by bicycling and now being retired. It sits 90% of the time now.
Sorry...i was thinking about what I leave plugged in and charging and rambled a bit. Has nothing to do with LiPo batteries. Carry on!
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