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Old 11-11-2013, 05:45 PM   #526
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Having a 2nd battery would be even more convenient.
+1 LOL
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Old 11-15-2013, 03:48 PM   #527
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Default A New High Power contender emerges?

http://www.amainhobbies.com/product_...r-6S-40A-1000W
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Old 11-20-2013, 12:30 PM   #528
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Even better charger is this:

http://www.ebay.com/itm/321237656194...84.m1436.l2649
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Old 11-20-2013, 12:34 PM   #529
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Do you really think a $200 charger off ebay, with no support is a wise purchase ?
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Old 11-20-2013, 03:39 PM   #530
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Do you really think a $200 charger off ebay, with no support is a wise purchase ?
NO. This is my point.

If your looking for a cheap charger then I would say don't race in competition.

I personally don't try to save money when it comes to racing in competition.
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Old 11-20-2013, 03:43 PM   #531
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NO. This is my point.

If your looking for a cheap charger then I would say don't race in competition.

I personally don't try to save money when it comes to racing in competition.
How much do you feel one should spend to charge batteries for racing in competition ?
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Old 11-20-2013, 03:52 PM   #532
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NO. This is my point.

If your looking for a cheap charger then I would say don't race in competition.

I personally don't try to save money when it comes to racing in competition.
Gotta agree it doesn't make sense to spend $200 on a 30 amp charger off ebay, when a well regarded and proven 40 amp PowerLab 6 can be bought from a reputable dealer for $175.
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Old 11-20-2013, 05:53 PM   #533
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How much do you feel one should spend to charge batteries for racing in competition ?
You want a charger to show real time IR, so you know the condition of the lipo before you race.

Having a HIGHER IR will effect the voltage sag in the pack which means slower lap times at the end of a race.

I have bought quite of few different chargers as well as lipos packs.
There is a HUGE difference....in lipos brands that have no sag in voltage.
IR has to be checked in a controlled environment (same temp).

Also, the way you store and charge makes all the difference maintaining low IR.
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Old 11-20-2013, 09:17 PM   #534
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To get the most out of your lipos.

First, buy good quality lipos if your racing.

Discharge only to 3.4 volts per cell (nothing lower)
I prefer to discharge to 3.4 volts per cell only on the first charge.

Charge at 12-20 amps and your good to go.
I prefer 20 amps first charge to heat them up internally.
This lowers the IR on the first charge.

If you don't think its an advantage then discharge your lipo at 30 amps.
And watch the voltage.
It's HUGE!
So, are you to discharge to 3.4v just when you get a new battery, then charge at 20A, or do this every time for race days? If the battery will be stored for a week or more after a race weekend?
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Old 11-20-2013, 11:16 PM   #535
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I have been charging mine at 2C ever since I start using a charger that's is capable charging at 10amps... One time I accidentally charge my TP lipo battery at 10amps with a checkpoint charger.. I thought I ruined my batteries but when I run it I notice I got more punch with same pack so I start charging my batteries at a higher amp since then this is probably 2 1/2 years ago when start charging at 2C with no issues..
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Old 11-21-2013, 05:52 PM   #536
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If any of you guys need a big power supply to run your power hungry charger, pm me. I have or can build to meet any specs.

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Old 11-22-2013, 12:31 PM   #537
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So, are you to discharge to 3.4v just when you get a new battery, then charge at 20A, or do this every time for race days? If the battery will be stored for a week or more after a race weekend?
Yes.

If its really cold out then discharge until you get some heat into the pack.
Measured on the outside of the pack 7-8 degrees above ambient temperature
will keep lower IR.

Timing is key.
You want to peak the lipo no more then 8 minutes before you race.
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Old 11-22-2013, 06:15 PM   #538
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Gotta agree it doesn't make sense to spend $200 on a 30 amp charger off ebay, when a well regarded and proven 40 amp PowerLab 6 can be bought from a reputable dealer for $175.
PL6/PL8 both work really well but you don't see them much at the track.
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Old 11-22-2013, 06:19 PM   #539
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NO. This is my point.

If your looking for a cheap charger then I would say don't race in competition.

I personally don't try to save money when it comes to racing in competition.
so $200 for a charger is doing it on the cheap?
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Old 11-22-2013, 06:21 PM   #540
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so $200 for a charger is doing it on the cheap?
He's not referring to the price, he's talking about the quality.
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