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Charging multiple Lipos

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Old 10-12-2012, 07:38 AM
  #26
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Default RE: Charging multiple Lipos


Quote:
ORIGINAL: SyCo_VeNoM

Quote:
ORIGINAL: Foxy

Can't help thinking you were just unlucky, but anyway, there are myriad power supplies available.
well in the one I bought within one month after I ordered it (took a month to come via slow post) there were 30 negative reviews all saying the same thing(read the reviews AFTER mine burned) so I doubt it was me alone. It was a new product at the time I ordered it and 2 months later they removed it and replaced it with one that looked exactly the same (diff name) and that had a pile of negatives within 2-3 months stating the same issues. I took it apart the soldering on it was so half assed it wasn't even remotely funny. The 5V fan was connected to a 12V rail which cause the fan to burn up, and the voltage regulators to burn up VERY shortly after(which the one review said and I couldn't believe till I opened it up)...

Well if you ever get a bad Lipo pack from Hobby King, they usually dont replace them.
Thier customer service is one of the worst, so I'm just giving you guys a fair warning before you buy from them.
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Old 10-12-2012, 07:41 AM
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Default RE: Charging multiple Lipos


Quote:
ORIGINAL: ElectricGuy007


Quote:
ORIGINAL: SyCo_VeNoM

Quote:
ORIGINAL: Foxy

Can't help thinking you were just unlucky, but anyway, there are myriad power supplies available.
well in the one I bought within one month after I ordered it (took a month to come via slow post) there were 30 negative reviews all saying the same thing(read the reviews AFTER mine burned) so I doubt it was me alone. It was a new product at the time I ordered it and 2 months later they removed it and replaced it with one that looked exactly the same (diff name) and that had a pile of negatives within 2-3 months stating the same issues. I took it apart the soldering on it was so half assed it wasn't even remotely funny. The 5V fan was connected to a 12V rail which cause the fan to burn up, and the voltage regulators to burn up VERY shortly after(which the one review said and I couldn't believe till I opened it up)...

Well if you ever get a bad Lipo pack from Hobby King, they usually dont replace them.
Thier customer service is one of the worst, so I'm just giving you guys a fair warning before you buy from them.
It's true but even if you get a dead battery with every order, it's still a hell of a lot cheaper than buying name brands. And the cells are just as good.
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Old 10-12-2012, 07:51 AM
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Default RE: Charging multiple Lipos

Quote:
ORIGINAL: Foxy


It's true but even if you get a dead battery with every order, it's still a hell of a lot cheaper than buying name brands. And the cells are just as good.

Yeah I like buying name branded stuff myself. Never had any issues at all. And if I did it would get replaced with a new one with no charge.

The Hobby King stuff isnt bad stuff it's just cheaply made because your buying something chinese workers make at half the cost.
Ive had people at the track buy a new esc from hobby king that was bad right outa the box
and that other guy on another thread is right they usuallly dont give you instructions for them.
BUY AT YOUR OWN RISK. And that's all I gotta say about that...


It will cost more to send something back to Hobby King than what you paid for it most of the time.
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Old 10-17-2012, 04:39 AM
  #29
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Default RE: Charging multiple Lipos

Hi

I just got my Hobbywing esc and motor and have fitted it but the programme card lights up with just a minus sign in each box...any ideas?
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Old 10-17-2012, 04:47 AM
  #30
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Default RE: Charging multiple Lipos

Here is a couple of pictures of card etc
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Old 10-17-2012, 07:45 AM
  #31
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Default RE: Charging multiple Lipos

weird never saw that issue before

did you hook it up prior to plugging the battery in, and turning it on?
Been awhile since I used that card as I got the high end LCD one that I use now.
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Old 10-18-2012, 02:16 AM
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Default RE: Charging multiple Lipos

Hi

I got it working instructions were wrong or i didnt read them correctly

OK now another problem.... i have just come in from running both slashes i have with the ez run motors and esc in both of them. They ran great for 3 minutes but then shut down and all that works is the steering.

I was running them on tarmac and softish ground and had them go through a puddle 4 or 5 times which only came upto midway on the wheels so not submerged.

Any ideas?

Henry
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Old 10-30-2012, 04:22 PM
  #33
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Default RE: Charging multiple Lipos

Sounds like you got the esc wet and it shut down. I reccomend letting them dry for a while and not run the vechicle for a while.
Water and electronics dont mix unless your running the Traxxas Velenon system.
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Old 10-31-2012, 08:23 AM
  #34
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Default RE: Charging multiple Lipos

Yeh, as we said, waterproof is not only rare, but also very subjective, out of those systems which are designated 'waterproof', not many of them actually are. You should look at videos on youtube on how to 'waterproofing your ESC'.

How did you enjoy it while it was running?
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Old 10-31-2012, 09:04 AM
  #35
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Default RE: Charging multiple Lipos

It turned out that it wasnt because it got wet that it spluttered but because the LVC was on and the batteries were not powerful enough. I turned off the LVC and they are flying about the place.

If i want to reduce power can i only 3/4 pull the trottle trigger when i am setting up the transmitter to give me 3/4 power or will this not work?
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Old 10-31-2012, 09:22 AM
  #36
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Default RE: Charging multiple Lipos

Just ordered 5200 2s2p 30c lipos from hobbyking.
Can someone tell me if say the battery would last 25 mins running is it ok to charge it after 20 mins? I know there will still be 5 mins runtime in it but will it affect the battery that ididn'trun it down all the way?
I will be hiring out these slashes so want to change the batteries before they dye as dyeing during a race would beproblematic

Also what does 30 c stand for?
Thanks :-)
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Old 10-31-2012, 12:28 PM
  #37
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Default RE: Charging multiple Lipos

OK, firstly, NEVER turn off the LVC. Just adjust it if its too high. 3v per cell is fine, and should give you decent runtime and overall battery life. Don't run them without LVC, you'll kill the batteries.

Regarding your questions...good news they didn't get wet, still look into waterproofing.

You can use the end point adjustment of the transmitter to adjust maximum power delivery, yes.

It doesn't matter if you run for only 5 minutes or run until the LVC kicks in, lipos don't care, you can charge them with any amount of existing charge and the charger will just top them up.

C is a rating of maximum current handling, higher is better to a point. Imagine you have a 5000mAh 10C battery. the 10C refers to the mAh, so it's 10*5000mA=50A maximum current. For your new batteries you just ordered, it's 30*5200mA=156A maximum current, which is WAY more than you need for those cars, so these batteries will be good and handle it easily. 1/10th motors typically pull between 20 and 40A during normal running, peaking at 50-60A max, which is unlikely to strain any lipo.

How are the cars, having fun?
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Old 11-01-2012, 12:24 AM
  #38
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Default RE: Charging multiple Lipos

Yea they are whizzing about the place without any trouble now you have all given me advice

Would you know the best timing system for my requirements? Ie rentals?

I know the best is usually the most expensive so maybe an alternative also

Thanks again
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Old 11-01-2012, 05:37 AM
  #39
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Default RE: Charging multiple Lipos

If I remember correctly, there is a system called 'mylaps' available commercially. Don't know how much it costs, found their product page though...

http://www.mylaps.com/index.php/us_e.../B2B/rc/system
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Old 11-02-2012, 07:53 AM
  #40
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Default RE: Charging multiple Lipos

You plugged the wire into the the programming card backwards, did you?
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ORIGINAL: Henryslash

Hi
I just got my Hobbywing esc and motor and have fitted it but the programme card lights up with just a minus sign in each box...any ideas?
[]
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Old 11-05-2012, 05:54 AM
  #41
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Default RE: Charging multiple Lipos

Hi

I just emailed my-laps for a price

Can anyone tell me if the 350w power supply (The Hobbyking PS35) will be strong enough to power the 400w (Turnigy 4x6S) charger?

I will want to be charging 4, 2s2p 5200mah 30c lipos in under an hour at the same time.

Just about to order them so want to make sure

Thanks all for the help
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