RCCrawler Forums

Offroader5 · 02-11-2008, 06:07 PM

Just received my new packs from CBP's and I want to make sure I am doing my math correctly. The packs are 9 cell 2/3A 1500 Elite's and the charger is the Piranha digi peak.

I'm setting up the charger for the first 10 hour charge on these packs. If I take the capacity and divide by 10 (1500/10) I get 150mah. Then if I take the 150mah and divide that by 1000 to get the amps...I come up with .15A. So on the charger, I have an option of changing the current, and this should be set to the .2A correct? (can't get .15...options are either .1 or .2)

How high can I set the peak mV/cell on this first charge? Is 5mV a good start or should I go with like 3mV for the initial charge and then 5mV after that?

Once I have this initial charge out of the way, the new setting should go up to 1.5A current.....correct?

Grizzly4x4 · 02-11-2008, 06:47 PM

.2A should be fine for the first charge and yes 1.5A is good after that. I have tried to charge mine faster and even at 1.6A my packs get hot.

I don't know about the peak mV/cell, I never mess with that on my Triton2.

Scattman · 02-11-2008, 07:31 PM

Most of my 2/3A packs reach a full charge on a 6 to 7mv setting. I would start around 4 or 5 and check the temps at the end of charge. If the pack is not getting warm enough at the end of the charge cycle, I would bump the mv up a notch.

I will charge them at 1.5 amps if I need them in a hurry but mostly at .7 or .8 amps.

Rogue · 02-11-2008, 08:57 PM

Your using this charger right?

http://www3.towerhobbies.com/cgi-bin...&I=LXCLD5&P=SM

If your are it is only rated for 1-8 cells. If not then you should be fine with what you are planning on doing.

02-11-2008, 06:07 PM	#1
Offroader5 Picky Fab'r/Acetal Junky Join Date: Jul 2006 Location: Arizona Desert/AJ Posts: 3,073	Am I doing the math right?? Just received my new packs from CBP's and I want to make sure I am doing my math correctly. The packs are 9 cell 2/3A 1500 Elite's and the charger is the Piranha digi peak. I'm setting up the charger for the first 10 hour charge on these packs. If I take the capacity and divide by 10 (1500/10) I get 150mah. Then if I take the 150mah and divide that by 1000 to get the amps...I come up with .15A. So on the charger, I have an option of changing the current, and this should be set to the .2A correct? (can't get .15...options are either .1 or .2) How high can I set the peak mV/cell on this first charge? Is 5mV a good start or should I go with like 3mV for the initial charge and then 5mV after that? Once I have this initial charge out of the way, the new setting should go up to 1.5A current.....correct?

02-11-2008, 06:47 PM	#2
Grizzly4x4 PapaGriz Yo Join Date: Apr 2004 Location: In the garage building the wife a crawler Posts: 13,137	.2A should be fine for the first charge and yes 1.5A is good after that. I have tried to charge mine faster and even at 1.6A my packs get hot. I don't know about the peak mV/cell, I never mess with that on my Triton2.

02-11-2008, 07:31 PM	#3
Scattman Official Cook of the ECC Join Date: Dec 2005 Location: Hawthorne, Florida Posts: 2,653	Most of my 2/3A packs reach a full charge on a 6 to 7mv setting. I would start around 4 or 5 and check the temps at the end of charge. If the pack is not getting warm enough at the end of the charge cycle, I would bump the mv up a notch. I will charge them at 1.5 amps if I need them in a hurry but mostly at .7 or .8 amps.

02-11-2008, 08:57 PM	#4
Rogue RCC Addict Join Date: Jan 2004 Location: Gunbarrel Posts: 1,167	Your using this charger right? http://www3.towerhobbies.com/cgi-bin...&I=LXCLD5&P=SM If your are it is only rated for 1-8 cells. If not then you should be fine with what you are planning on doing.

Sponsored Links

RCCrawler Forums

Thread: Am I doing the math right??