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Old 10-12-2004, 05:59 AM   #31
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Ajg's only purpose on here is to get a rise out of people. If we continue to stimulate his 4 brain cells he will continue to post. Does it hurt when you have to think ?
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Old 10-12-2004, 07:04 AM   #32
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Wow, another great comeback. You guys are just hurting yourself, it means nothing to me.
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Old 10-12-2004, 07:55 AM   #33
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When my batteries are charged they are hot enough to hold, but not for too long.

That's @ 6.0A to 30mv on a 6 cell GP3300 pack on a LRP Pulsar.

Or, 5.0A to 20mv on a 4 cell GP3300 pack on the same Pulsar.

Anyone else use similiar amp rating and delta peak on their Pulsar's?

Oh... it's Ajg who wouldn't dare let people test his car for the magazines incase it wasn't as fast as he claimed!

In that case my batteries get to about 400 degrees celsius (get a dictionary for that one Ajg) and melt through the table before going into a nuclear meltdown, they still work fine though. Although my car does glow a funny green colour...
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Old 10-15-2004, 08:00 PM   #34
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I appreciate the info, new to the rc world. I will be charging a reedy black label 3300 on a mrc superbrain 959. I've heard these chargers themselves tend to heat up when charging 3300's. Any of you used this charger and encountered problems?
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Old 10-15-2004, 10:07 PM   #35
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Guys, be careful with your Pulsars. They're versatile little chargers, but you may want to set your delta-peak setting a little lower than the manual suggests as I find that Pulsars can have a tendency to overcharge packs set at 30mv for 6 cell packs.

If you don't have one, I suggest you pick up a small temperature gauge. You can usually get one for under $35. At peak your cells really shouldn't get much hotter than 140*F. Generally, I find peak levels at around 130* - 135* to be optimal for higher-voltage applications. Once you start to overcharge, your pack will run very flat (but a little longer runtime-wise).

Good discussion.
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Old 10-15-2004, 10:35 PM   #36
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Quote:
Originally posted by Liam_Davies
When my batteries are charged they are hot enough to hold, but not for too long.

That's @ 6.0A to 30mv on a 6 cell GP3300 pack on a LRP Pulsar.

Or, 5.0A to 20mv on a 4 cell GP3300 pack on the same Pulsar.

Anyone else use similiar amp rating and delta peak on their Pulsar's?

Oh... it's Ajg who wouldn't dare let people test his car for the magazines incase it wasn't as fast as he claimed!

In that case my batteries get to about 400 degrees celsius (get a dictionary for that one Ajg) and melt through the table before going into a nuclear meltdown, they still work fine though. Although my car does glow a funny green colour...
Ive been charging my 6 cell orion 3300s at 40m/v pack, 5A on my Pulsar Comp 1. They get warm but not hot and i think this is about right, maybe a little less cutoff could be used, ill try it out next time im at the track.
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Old 10-15-2004, 10:38 PM   #37
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Berger, again, you really can't go wrong with a temperature gauge for double-checking. Their an inexpensive tool that can prevent you from setting your charger improperly.

Try to keep the peak under 140*F. Like I said in an earlier post, I generally find 130*-135* optimal.
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Old 10-18-2004, 06:10 AM   #38
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Yep, a temp gun is a great little tool. It can easily save you some money spent on damaged batteries.

You can also check the motor temp. Same story as batteries, overheating cause damage.

And you can chjeck the track temperature
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Old 10-18-2004, 06:49 AM   #39
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jdwca thanks for the info. in searching the threads I have not been able to find a straight forward answer to the delta peek on a Pulsar comp 1 I have been at 50mv for a while now, and I always thought that the heat is where the power comes from, but I felt yesterday that a pack that I peeked at 50mv ran flatter then the pack that I yanked off the charge therefor not peeking (had to make the main ). now I realize I have probably been over charging/ over heating my packs. So around a 30mv peek at 130-135 is optimal right?
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Old 10-18-2004, 06:59 AM   #40
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50mv is way too high, yes. Go with 30mv to start with.

By continuously putting current into the cells after they've already peaked means the pack will run a lot flatter.
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