R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 07-03-2003, 06:56 PM   #1
Tech Rookie
 
Join Date: Jul 2003
Posts: 2
Default Revive tired 33k GPs

If you can't get in more than 3000mah to your 33k GPs chances
are they're tired. Steps to follow to bring back to almost new
condition.

step 1: fully discharge to .85v/cell
step 2: tray them until lights go out
step 3: short the cells individually (not using a tray cuz some
of them have resistors and diodes that have auto
cut off.) for 30 min. to an hour ( batts will just get warm
and not hot) and let batts cool
step 4: As batts are cool individually zapp the cells several
times per cell using a hi volt zapper (200v+)
step 5: Charge battery (as a pack) using you normal procedure
then discharge at pref. at 20-30amps and your batts
are close to new. (it may false peak on 1st charge)

note: If you dont zapp them ave. volts will not improve.

TRY AT YOUR OWN RISK!
battman is offline   Reply With Quote
Old 07-03-2003, 07:06 PM   #2
Registered User
 
Calvin Ng's Avatar
 
Join Date: Apr 2003
Posts: 1,556
Send a message via ICQ to Calvin Ng
Default

have you tried this

anyone build there own zapper before?
Calvin Ng is offline   Reply With Quote
Old 07-03-2003, 08:31 PM   #3
Tech Regular
 
Join Date: Aug 2001
Posts: 298
Default

Umm....bad charger? Some chargers will not charge about a certain MAH......something to consider. What flavor of charger are you using??
acloco is offline   Reply With Quote
Old 07-04-2003, 08:17 AM   #4
dtm
Tech Champion
 
dtm's Avatar
 
Join Date: Aug 2001
Location: HKG
Posts: 7,551
Send a message via ICQ to dtm
Default

zapp at 200V+!!

Who makes such a zapper....I am interested!
dtm is offline   Reply With Quote
Old 07-04-2003, 11:31 AM   #5
Registered User
 
Calvin Ng's Avatar
 
Join Date: Apr 2003
Posts: 1,556
Send a message via ICQ to Calvin Ng
Default

can you make your own zapper?
Calvin Ng is offline   Reply With Quote
Old 07-04-2003, 12:01 PM   #6
jpn
Tech Master
 
jpn's Avatar
 
Join Date: Aug 2002
Posts: 1,464
Trader Rating: 1 (100%+)
Default home made zapper

Tried making one myself. downloaded diagram from internet.
when i trigger it with a tester on it reaches about 200v. the
volts depend on capacitor you use. u can dowload diagram
from this site : http://www.electronichobbyist.net/pr...cad_zapper.htm
__________________
www.casarosario.net

HIROBO EAGLE3 SWM Y.S.91 SR - HIROBO Freya EX2 Y.S.91 SR - HIROBO Turbulence D3 90 O.S.91HZ - HIROBO LEPTON - ALIGN Trex 600N PRO Novarossi C50-H2 - COPTER X V2 - Futaba 12MZH
jpn is offline   Reply With Quote
Old 07-04-2003, 06:32 PM   #7
Tech Champion
 
JDM_DOHC_SiR's Avatar
 
Join Date: Aug 2002
Location: Chula Vista, CA
Posts: 9,070
Trader Rating: 31 (100%+)
Default

Quote:
Originally posted by dtm
zapp at 200V+!!

Who makes such a zapper....I am interested!
Yea me too I have only seen one that can go up to 150V tops!!!!!
-Dave
__________________
Ȼ4.5 Centro+α ◊ TRF 501ӽ ◊ TRF 502ӽs ◊ TRF 503 ◊ TRF 511 ◊ TRF 201ӽr ◊ TRF 211ӽ
B5m ◊ T5m ◊SC5m ◊ B64deez nutz
Speedway PAL ◊ SDRC ◊ Shop UFO ◊ SMC
JDM_DOHC_SiR is offline   Reply With Quote
Old 07-04-2003, 08:06 PM   #8
Tech Prophet
 
Randy Caster's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Costa Mesa, CA
Posts: 16,675
Trader Rating: 46 (100%+)
Default

How many volts does the XIPP Xapper put out?
Randy Caster is offline   Reply With Quote
Old 07-04-2003, 08:40 PM   #9
Registered User
 
Calvin Ng's Avatar
 
Join Date: Apr 2003
Posts: 1,556
Send a message via ICQ to Calvin Ng
Default

whats the diffrence between building one and buying one
Calvin Ng is offline   Reply With Quote
Old 07-04-2003, 08:57 PM   #10
Tech Master
 
UCHEATULOSE's Avatar
 
Join Date: Dec 2002
Location: birth place of oval! daytona beach!
Posts: 1,083
Default

whats the difference in building your own car or buying one built for ya? $$$$$$$$$$$$$$

xxip 3000dcx was 90 volts
xxip 3300dcx i think is a little over 100

you need a comercial grade zapper the sky is the limit!
UCHEATULOSE is offline   Reply With Quote
Old 07-04-2003, 09:20 PM   #11
Tech Prophet
 
Randy Caster's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Costa Mesa, CA
Posts: 16,675
Trader Rating: 46 (100%+)
Default

What other zappers are there on the market?
Randy Caster is offline   Reply With Quote
Old 07-05-2003, 11:07 AM   #12
Registered User
 
Calvin Ng's Avatar
 
Join Date: Apr 2003
Posts: 1,556
Send a message via ICQ to Calvin Ng
Default

batman is this proven to work. i havent tried my batteries yet to see if they lost any run time but is this proven to work
Calvin Ng is offline   Reply With Quote
Old 07-06-2003, 12:00 PM   #13
Registered User
 
Calvin Ng's Avatar
 
Join Date: Apr 2003
Posts: 1,556
Send a message via ICQ to Calvin Ng
Default

i just checked my gp's and there not getting woarse there way better then 3300's

i fully discharged it (not with a tray)

charged it with my millenium pro and it charged 3654mah into with one charge at 5 amps

anyone get this out of there gp's
Calvin Ng is offline   Reply With Quote
Old 07-06-2003, 01:59 PM   #14
Tech Regular
 
Join Date: Feb 2002
Posts: 388
Send a message via ICQ to MaverickRacing
Default

The older and newer (as of February) GP3300s like to be discharged all the way down, put on an Integy or trinity discharge tray, and dead shorted.

I just bring mine down on 15 light bulbs, then one light bulb to finish it off. The I take a piece of wire and solder it to each of the battery bars to deadshort the pack.

This drops your IR and adds keeps the voltage, at the expense of runtime...Good for stock racing of 4 minute races.

Charge at as high as 7 amps, with your pack on a heating pad. Keep the pack on the heat pad until you put the pack in your car. This adds voltage to the pack, with no noticable loss in runtine. No change in IR from what ive seen.
MaverickRacing is offline   Reply With Quote
Old 07-06-2003, 06:23 PM   #15
Tech Champion
 
Korey Harbke's Avatar
 
Join Date: Oct 2002
Location: Redmond, WA
Posts: 6,126
Trader Rating: 13 (100%+)
Default

I have 3300 GPs that go to 3400-3600 so I think it's fairly normal if you get a nice pack.

-Sushi Boy
__________________
Xray - RC America - Hudy - Apex RC - LRP - Protoform - AVID - 1Up Racing - Xenon - Xpert - Sanwa - RC Mission America - SpeedZombi - Slapmaster Tools - Turtlemaster Racing - Seattle RC Racers
Korey Harbke is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Let's Revive This Crew! Calling for New Members! Cmotif International Racing Team 254 10-31-2009 08:35 AM
Revive the Kyosho Sandmaster sandym Nitro Off-Road 1 05-11-2008 07:10 PM
Any ideas on how to revive IB3800's?? Quante Electric On-Road 14 03-06-2006 07:42 PM
Help me revive a RC10T, tell me what I need LXative Electric Off-Road 3 11-28-2005 12:51 PM
How to revive 3000nimh ?? Kasey Electric On-Road 13 10-02-2001 03:18 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 10:16 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net