View Single Post
Old 11-21-2009, 06:56 AM   #12
[email protected]
Tech Addict
 
JC@TSCM's Avatar
 
Join Date: Feb 2004
Location: Danvers, MA
Posts: 665
Trader Rating: 18 (100%+)
Default Battery Info

Wayne called me and asked if I could post the Battery Info on the 7.4V and 3.7V lipo packs.

I use the GFX, Cycle settings 6.0 Amp Charge 35 Amp Discharge. Sensor Leads are connected to the bullet connector at the top of the pack. I do not heat the packs or charge and discharge before I start the cycle. I cycle the pack 2 times because they come with a charge in them from the factory. I let the pack sit for about 3 hours before the 2nd cycle is started. I send the data from the GFX to my computer after the cycle is done. The label is printed for each pack so my customers can see what they are getting.

Here is a sample of the numbers I am getting from each pack

3.7V 5000 40C
AVG DISCHARGE VOLTAGE 3.69
RUNTIME (SEC) 497
MAH 4831
IR 3.7



7.4V 5000 45C
AVG DISCHARGE VOLTAGE 7.47
RUNTIME (SEC) 541
MAH 5259
IR 4.7


1/18 SCALE BATTERIES AND LIPO PACKS

TSR 1500 Matched 2/3A Cells are done the same way, just using a Turbo Matcher with the settings at 3.0 amp charge rate, 15 amp discharge, .90 voltage cut, 5000 sec runout. These cells speak for them selves with a 23 Micro National Titles under there belt.

TSR 1500'S
RUNTIME (SEC) 330-350
VOLTAGE 1.19-1.20+ (BATCH I JUST FINISHED 97% 1.20+)
IR 4.0-4.6

CHARGE/EQUALIZE/STORAGE INFO

A “NEW” Pack when received should be discharged and fully Equalized until the pack is cool before Starting step 1

1 Charge at 3.0 amps with a 40 MV peak detect
2 Run your pack then discharge it at 15 amps (10 will be fine as well) to 5.4 volts for a 6 Cell Pack
3 Equalize the pack right after you discharge it with a Tekin Mini Battery Tray
4 When the pack is cool repeat step 1 and race your pack again if you plan on running it for the 2nd time in one day.
5 If you are storing the pack until the next time you race (5-7 Days) Leave the remainder of the charge from your race in it for storage.
6 When you are ready to race, discharge the pack at 15 amps (10 will be fine as well) to 5.4 volts
7 Equalize the pack with a Tekin Mini Battery Tray until it is cool.
8 Charge it at 3.0 amps with a 40 MV peak detect and you are ready to race.
9 Long periods of storage: Fully Charge Pack and Start and step 1 when used again.
The Tray makes a huge difference

There are the other 1/18 scale lipo packs I carry

TSR 1800 MAH 35C HARD CASE 7.4V
TSR 900 MAH 30C 7.4V
TSR 1800 MAH 30C 7.4 SADDLE PACK

I hope I covered everything, if any one has any other questions please feel free to email me.
__________________
John at Team Scream Racing
www.teamscreamracing.com 978-337-0429
Team Scream Racing X-Factory Graupner/SJ Jconcepts B-Fast MIP SpeedMerchant
AB Mods Advantage RC Products TQ Wire Exotek The Toyz.com
JC@TSCM is offline   Reply With Quote