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scottkerley · 03-24-2011, 11:37 AM

Just curious,being new to the Lipo world,I'm just making sure my charge times are correct..............I am running 3s 1300 packs,using a Thunder AC6 charger on balance charge & it takes about an hour to charge a pack at 1c,I was under the impression that lipo's would charge quicker than nimhi/nicad but was'nt sure ? Thanks in advance for any info !

JeremyH · 03-24-2011, 11:39 AM

Why are you charging it at 1S? Your settings should be for 3S and 1C (or 1300mAh)...

Some lipos can be charged faster...but not all. It will usually specify on the pack.

JohnRobHolmes · 03-24-2011, 12:19 PM

Maybe he means 1c.

One hour is standard. Some of the lower resistance cells can be charged in 15 minutes, but it does wear them out faster.

scottkerley · 03-24-2011, 12:27 PM

Sorry.................I did mean 1c charge rate

JeremyH · 03-24-2011, 03:10 PM

Ahh.....yeah....that makes more sense.

Scott, what packs are you talking about??

losichris · 03-24-2011, 04:45 PM

One hour is right for a 1c charge rate. I use batterys that can be charged 5c and they charge in 10-12 min.

scottkerley · 03-24-2011, 08:35 PM

Quote:

Originally Posted by JeremyH

Ahh.....yeah....that makes more sense.

Scott, what packs are you talking about??

The packs I have I got from JRH, they are 1300 mah/25c,they seem to work good,just was'nt sure on the charging.

JeremyH · 03-24-2011, 08:39 PM

Ok....yeah, I believe he recommends most of his packs be charged at 1C (1300mA)...

JohnRobHolmes · 03-24-2011, 09:14 PM

Indeed. The 25c cells could be safely charged at 2c, and the 35c cells seem to take 5c with little heat. I still don't recommend it though. Just wears em out. A better way for a quick fix is to charge them at 1c to 4.13v per cell and skip the last 20 minutes of CV and balance charge. Gets about 90% of the capacity (depending on cell) and doesn't beat then with a fast charge. The cell life can be extended quite a bit with undercharging.

scottkerley · 03-24-2011, 09:35 PM

Quote:

Originally Posted by JohnRobHolmes

Indeed. The 25c cells could be safely charged at 2c, and the 35c cells seem to take 5c with little heat. I still don't recommend it though. Just wears em out. A better way for a quick fix is to charge them at 1c to 4.13v per cell and skip the last 20 minutes of CV and balance charge. Gets about 90% of the capacity (depending on cell) and doesn't beat then with a fast charge. The cell life can be extended quite a bit with undercharging.

John,have you got any more of 35c packs yet ?

JohnRobHolmes · 03-25-2011, 07:22 AM

Still waiting unfortunately. I have 2s in stock and that is it.

scottkerley · 03-25-2011, 09:37 AM

Thanks John,I'll keep checkin'

khwilliams · 03-25-2011, 11:16 AM

I have been charging my lipo's at 4.5-5.0 amps for over a year now with no problems what so ever (cheapbatterypacks.com 850 3s, Thunder Power 850 45c 3s) I've had great success with these lipo's and have seen great performance and longevity from both at these charge rates

808DA6 · 05-05-2011, 01:36 PM

Quick, semi related question. I just charged my very first lipo on my brand new Thunder AC6. I used balance mode. The 2250mah batt (thunder power) was charged at 1c and took about 40mins. The current capacity display showed 1168mah. Does this sound correct? Does balance mode only show charge capacity for one of the cells?

Mahalo!
Brian

JohnRobHolmes · 05-05-2011, 02:06 PM

Generally the battery will be at half charge when you get it, so that sounds right.

Fancy chargers will account for balance current. I know the Hyperion does. Most chargers do not account for balance currents and will show a bit more than is actually put into the battery. Since cells in a pack are in series the capacity put into one cell is the same for all cells.

808DA6 · 05-06-2011, 01:35 AM

Awesome. Thanks Jon. On reflection I maybe should have "zero" out the batts then charge from scratch.

Charlie-III · 05-06-2011, 08:39 PM

Quote:

Originally Posted by 808DA6

Awesome. Thanks Jon. On reflection I maybe should have "zero" out the batts then charge from scratch.

Ummm.....no. Just run them down to LVC, then charge.

808DA6 · 05-06-2011, 10:41 PM

Sheesh. All these rules. Haha. Thanks. Apologies to the Op. I straight jacked this schiet.

03-24-2011, 11:37 AM	#1
scottkerley Pebble Pounder Join Date: Jan 2011 Location: Bakersfield,Ca Posts: 104	Battery Charging Just curious,being new to the Lipo world,I'm just making sure my charge times are correct..............I am running 3s 1300 packs,using a Thunder AC6 charger on balance charge & it takes about an hour to charge a pack at 1c,I was under the impression that lipo's would charge quicker than nimhi/nicad but was'nt sure ? Thanks in advance for any info ! Last edited by scottkerley; 03-24-2011 at 12:28 PM.

03-24-2011, 11:39 AM	#2
JeremyH I wanna be Dave Join Date: Sep 2005 Location: Houston, TX Posts: 16,952	Why are you charging it at 1S? Your settings should be for 3S and 1C (or 1300mAh)... Some lipos can be charged faster...but not all. It will usually specify on the pack.

03-24-2011, 12:19 PM	#3
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Maybe he means 1c. One hour is standard. Some of the lower resistance cells can be charged in 15 minutes, but it does wear them out faster.

03-24-2011, 12:27 PM	#4
scottkerley Pebble Pounder Join Date: Jan 2011 Location: Bakersfield,Ca Posts: 104	Sorry.................I did mean 1c charge rate

03-24-2011, 03:10 PM	#5
JeremyH I wanna be Dave Join Date: Sep 2005 Location: Houston, TX Posts: 16,952	Ahh.....yeah....that makes more sense. Scott, what packs are you talking about??

03-24-2011, 04:45 PM	#6
losichris Quarry Creeper Join Date: Jan 2009 Location: Rocklin Posts: 310	One hour is right for a 1c charge rate. I use batterys that can be charged 5c and they charge in 10-12 min.

03-24-2011, 08:39 PM	#8
JeremyH I wanna be Dave Join Date: Sep 2005 Location: Houston, TX Posts: 16,952	Ok....yeah, I believe he recommends most of his packs be charged at 1C (1300mA)...

03-24-2011, 09:14 PM	#9
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Indeed. The 25c cells could be safely charged at 2c, and the 35c cells seem to take 5c with little heat. I still don't recommend it though. Just wears em out. A better way for a quick fix is to charge them at 1c to 4.13v per cell and skip the last 20 minutes of CV and balance charge. Gets about 90% of the capacity (depending on cell) and doesn't beat then with a fast charge. The cell life can be extended quite a bit with undercharging.

03-25-2011, 07:22 AM	#11
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Still waiting unfortunately. I have 2s in stock and that is it.

03-25-2011, 09:37 AM	#12
scottkerley Pebble Pounder Join Date: Jan 2011 Location: Bakersfield,Ca Posts: 104	Thanks John,I'll keep checkin'

03-25-2011, 11:16 AM	#13
khwilliams Quarry Creeper Join Date: May 2009 Location: brentwood Posts: 324	I have been charging my lipo's at 4.5-5.0 amps for over a year now with no problems what so ever (cheapbatterypacks.com 850 3s, Thunder Power 850 45c 3s) I've had great success with these lipo's and have seen great performance and longevity from both at these charge rates

Sponsored Links

05-05-2011, 01:36 PM	#14
808DA6 Rock Crawler Join Date: May 2009 Location: Hillsboro, OR / Kapolei, Hi Posts: 695	Quick, semi related question. I just charged my very first lipo on my brand new Thunder AC6. I used balance mode. The 2250mah batt (thunder power) was charged at 1c and took about 40mins. The current capacity display showed 1168mah. Does this sound correct? Does balance mode only show charge capacity for one of the cells? Mahalo! Brian

05-05-2011, 02:06 PM	#15
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Generally the battery will be at half charge when you get it, so that sounds right. Fancy chargers will account for balance current. I know the Hyperion does. Most chargers do not account for balance currents and will show a bit more than is actually put into the battery. Since cells in a pack are in series the capacity put into one cell is the same for all cells.

05-06-2011, 01:35 AM	#16
808DA6 Rock Crawler Join Date: May 2009 Location: Hillsboro, OR / Kapolei, Hi Posts: 695	Awesome. Thanks Jon. On reflection I maybe should have "zero" out the batts then charge from scratch.

05-06-2011, 10:41 PM	#18
808DA6 Rock Crawler Join Date: May 2009 Location: Hillsboro, OR / Kapolei, Hi Posts: 695	Sheesh. All these rules. Haha. Thanks. Apologies to the Op. I straight jacked this schiet.

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