RCCrawler Forums

EMUTT · 11-26-2011, 11:31 PM

Ok I have 2 max amp 6500 lipo 2s 7.2 volt on the pack it says charge at 6 amp. The guy out LHS says to charge at 3 amp? Is there any reason to charge at 3 amp? And I just placed an order for a thunder ac680 charger will I need any thing to be able to charge the max amp packs? Lipo virgin here

Charlie-III · 11-26-2011, 11:46 PM

Most packs can charge at "1C", which for your 6500mah packs = 6.5amps.
The 1st charge or so I usually do at a lesser charge rate then the rest of the time at "1C" balanced, just something I do. Some people say that charging at ".5C" will extend the life of your LiPO packs, I haven't had LiPO long enough to know whether or not that is true.

As to those packs vs. that charger, I don't know what style balance plug the packs have nor do I know what style balance port is on the charger. Maybe someone else will chime in.

EMUTT · 11-26-2011, 11:53 PM

Thanks for the info,I forgot to mention these are used lipos i got in a trade is there anything i need to do them before i charge them? Also can you purchase and replace the balance plugs?

Charlie-III · 11-27-2011, 12:21 AM

Nope, just charge them up since they're used.
As to replacing balance plugs, it depends on what they are. Usually a decent LHS will have them, but not always. If you have a bunch of the same mismatched balance connectors, you can get an adaptor to go between the pack & the charger.

EMUTT · 11-27-2011, 12:40 AM

awesome thanks again for the info ,pretty sure i will have more questions

but this should get me through a few hours lol.

Charlie-III · 11-27-2011, 08:35 AM

Quote:

Originally Posted by EMUTT

Awesome, thanks again for the info, pretty sure I will have more questions

but this should get me through a few hours, lol.

OK, it's been a few hours....anymore questions?

Glad to help out.

EMUTT · 11-27-2011, 03:52 PM

Ok thought of something lol. What characteristics should I look for in lipos for a traxxas summit? I was looking at gens ace or ski lipo I have a 4c lvc on a evx2 running the stock Titan 775.

Krawler23 · 11-27-2011, 07:40 PM

i have a quick ? that needs some clearing. if i get like a sky lipo, can i change those ends to deans since those seem to be the big thing. Also does anybody know if the thunder ac6 will work with regular sky's. thanks

Charlie-III · 11-27-2011, 07:53 PM

Quote:

Originally Posted by EMUTT

OK thought of something lol. What characteristics should I look for in LiPO's for a Traxxis summit? I was looking at gens ace or sky LiPO I have a 4c LVC on a evx2 running the stock Titan 775.

I don't know that ESC, but, I would say a 3S pack of 2000mah & 25C+, that will get you a lot of runtime and have decent power. I run 3S 1350 45C packs, but I am more concerned with size of the pack, I could even drop to ~850mah. You don't want to go too big on mah, it's harder to find a spot on the rig to install, the electronics never get a chance to cool off and if you only have 1 pack & it dies, you are SOL.
I suggest the Elite packs from CheapBatteryPacks.

Quote:

Originally Posted by Krawler23

I have a quick ? that needs some clearing. If I get like a sky LiPO, can I change those ends to deans since those seem to be the big thing. Also does anybody know if the thunder ac6 will work with regular sky's. thanks

Yes, you can change the connector on any pack. Deans are a decent choice.
As to the AC6, yes it will charge a LiPO, not sure what connectors it has or balance port type.

EMUTT · 11-28-2011, 01:08 PM

Ok so I chatted with a tech person from hobbypartz and he said that the balancer board for the ac680 has jst-xh plugs here is a pic of the plug on my max amp lipos

Next question is that the correct plug for the balance board? If not what do I do?

Charlie-III · 11-28-2011, 01:18 PM

I believe the JST plug is also called an "Align" plug, maybe Chris from CBP can chime in, or others but your pack has a different plug, maybe it's a Thunderpower type??
If I am correct, you can usually get an adaptor cable that will plug between the pack balance connector to the charger balance port.

EMUTT · 11-28-2011, 01:33 PM

I didn't think it looked like the balance board plugs lol. Yeah if they do make something hopefully someone can tell me what to buy lol. And thanks for all your info Charlie

Charlie-III · 11-28-2011, 01:45 PM

You can try this link, see if yours matches something.....CheapBatteryPacks - Lipo Tap Plugs

I've requested better pictures of the 3 types to make it easier for people to identify what they have/need. Front view & top view pictures.

If you find something, I suggest you buy from CBP......please.....

EMUTT · 11-28-2011, 02:21 PM

If the jst is the same as an align plug,and the plug on the max amp is thunder, then they make an adapter. However there sold out

anybody want to make one for a perfect gift to me???

EMUTT · 11-29-2011, 05:27 AM

Ok can I charge the lipos without balancing them?

EMUTT · 11-29-2011, 06:04 AM

This looks like it would fit my battery for sure,but not sure about the ax680 balance board?
CheapBatteryPacks - PolyQuest 2s to Align adapter 2s

Charlie-III · 11-29-2011, 06:15 AM

Quote:

Originally Posted by EMUTT

Ok can I charge the lipos without balancing them?

Yes, but I wouldn't make a habit of it. Your LHS may have the pins & connectors to make your own if need be.

EMUTT · 11-29-2011, 08:45 AM

Patience is a virtue I wasn't born with lol, Gonna be hard not to charge and run them when I get my charger lol. So just charging one time shouldn't hurt anything? Only got to see the summit run for about 2 mins when I got it in trade and I really want to see what she will do lol.

CrawlinROCKS · 11-29-2011, 09:12 AM

*theoretically* slow slow charging once without balancing won't kill the packs, but it isn't a risk I'd want to take personally.

A.D.

Charlie-III · 11-29-2011, 09:31 AM

Quote:

Originally Posted by EMUTT

Patience is a virtue I wasn't born with lol, Gonna be hard not to charge and run them when I get my charger lol. So just charging one time shouldn't hurt anything? Only got to see the summit run for about 2 mins when I got it in trade and I really want to see what she will do lol.

You can do a few charges, but ideally most charges should be balance charges. No, a couple of just plain charges should be fine.
I would do the first charges @ .5C, thus a 2000mah pack would charge @ 1A for ~2 hours.

11-26-2011, 11:31 PM	#1
EMUTT Rock Crawler Join Date: Mar 2006 Location: Benson,NC Posts: 761	charging question Ok I have 2 max amp 6500 lipo 2s 7.2 volt on the pack it says charge at 6 amp. The guy out LHS says to charge at 3 amp? Is there any reason to charge at 3 amp? And I just placed an order for a thunder ac680 charger will I need any thing to be able to charge the max amp packs? Lipo virgin here

11-26-2011, 11:46 PM	#2
Charlie-III I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA Posts: 8,314	Most packs can charge at "1C", which for your 6500mah packs = 6.5amps. The 1st charge or so I usually do at a lesser charge rate then the rest of the time at "1C" balanced, just something I do. Some people say that charging at ".5C" will extend the life of your LiPO packs, I haven't had LiPO long enough to know whether or not that is true. As to those packs vs. that charger, I don't know what style balance plug the packs have nor do I know what style balance port is on the charger. Maybe someone else will chime in.

11-26-2011, 11:53 PM	#3
EMUTT Rock Crawler Join Date: Mar 2006 Location: Benson,NC Posts: 761	Thanks for the info,I forgot to mention these are used lipos i got in a trade is there anything i need to do them before i charge them? Also can you purchase and replace the balance plugs?

11-27-2011, 12:21 AM	#4
Charlie-III I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA Posts: 8,314	Nope, just charge them up since they're used. As to replacing balance plugs, it depends on what they are. Usually a decent LHS will have them, but not always. If you have a bunch of the same mismatched balance connectors, you can get an adaptor to go between the pack & the charger.

11-27-2011, 12:40 AM	#5
EMUTT Rock Crawler Join Date: Mar 2006 Location: Benson,NC Posts: 761	awesome thanks again for the info ,pretty sure i will have more questions but this should get me through a few hours lol.

11-27-2011, 03:52 PM	#7
EMUTT Rock Crawler Join Date: Mar 2006 Location: Benson,NC Posts: 761	Ok thought of something lol. What characteristics should I look for in lipos for a traxxas summit? I was looking at gens ace or ski lipo I have a 4c lvc on a evx2 running the stock Titan 775.

11-27-2011, 07:40 PM	#8
Krawler23 Rock Crawler Join Date: Oct 2011 Location: smithville Posts: 642	i have a quick ? that needs some clearing. if i get like a sky lipo, can i change those ends to deans since those seem to be the big thing. Also does anybody know if the thunder ac6 will work with regular sky's. thanks

11-28-2011, 01:08 PM	#10
EMUTT Rock Crawler Join Date: Mar 2006 Location: Benson,NC Posts: 761	Ok so I chatted with a tech person from hobbypartz and he said that the balancer board for the ac680 has jst-xh plugs here is a pic of the plug on my max amp lipos Next question is that the correct plug for the balance board? If not what do I do?

11-28-2011, 01:18 PM	#11
Charlie-III I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA Posts: 8,314	I believe the JST plug is also called an "Align" plug, maybe Chris from CBP can chime in, or others but your pack has a different plug, maybe it's a Thunderpower type?? If I am correct, you can usually get an adaptor cable that will plug between the pack balance connector to the charger balance port.

11-28-2011, 01:33 PM	#12
EMUTT Rock Crawler Join Date: Mar 2006 Location: Benson,NC Posts: 761	I didn't think it looked like the balance board plugs lol. Yeah if they do make something hopefully someone can tell me what to buy lol. And thanks for all your info Charlie

11-28-2011, 01:45 PM	#13
Charlie-III I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA Posts: 8,314	You can try this link, see if yours matches something.....CheapBatteryPacks - Lipo Tap Plugs I've requested better pictures of the 3 types to make it easier for people to identify what they have/need. Front view & top view pictures. If you find something, I suggest you buy from CBP......please.....

Sponsored Links

11-28-2011, 02:21 PM	#14
EMUTT Rock Crawler Join Date: Mar 2006 Location: Benson,NC Posts: 761	If the jst is the same as an align plug,and the plug on the max amp is thunder, then they make an adapter. However there sold out anybody want to make one for a perfect gift to me???

11-29-2011, 05:27 AM	#15
EMUTT Rock Crawler Join Date: Mar 2006 Location: Benson,NC Posts: 761	Ok can I charge the lipos without balancing them?

11-29-2011, 06:04 AM	#16
EMUTT Rock Crawler Join Date: Mar 2006 Location: Benson,NC Posts: 761	This looks like it would fit my battery for sure,but not sure about the ax680 balance board? CheapBatteryPacks - PolyQuest 2s to Align adapter 2s

11-29-2011, 08:45 AM	#18
EMUTT Rock Crawler Join Date: Mar 2006 Location: Benson,NC Posts: 761	Patience is a virtue I wasn't born with lol, Gonna be hard not to charge and run them when I get my charger lol. So just charging one time shouldn't hurt anything? Only got to see the summit run for about 2 mins when I got it in trade and I really want to see what she will do lol.

11-29-2011, 09:12 AM	#19
CrawlinROCKS Rock Stacker Join Date: Jan 2008 Location: Southern IL Posts: 61	theoretically slow slow charging once without balancing won't kill the packs, but it isn't a risk I'd want to take personally. A.D.

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