RR Rated M For Mature
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 369 ONLINE 17 EVENTS SEARCH REGISTER  START HERE
 
1 page1536 viewsPOST REPLY
Esprit Model . Thunder Power RC . Mikado Modellhubschrauber

.
.
e-Electric Batteries & Chargers > Did i mess up my Thunderpower Lipo??
 
 
heligrom
Senior Heliman
Location: Long Island NY, USA

My Posts This: Topic  Forum		ok i think i have a major problem. i have a thunderpower 3s 1320 Mah lipo for my blade CP. i use a hobbico Qucik field charger MKII at 1.2 amps to charge it. i took it out today and after the charging it to what the charger said was full hooked it to my Blade CP. i went out and hovered for two minutes when i saw an extreme power drop and disconnected the battery. i took it in waited about 10 minutes and hooked it up to the charger. the charger now blinks green/red alternating (which means somethings wrong).

could i have somehow overdischarged the lipo after 2 minutes while it was just fully charged? it seems weird as i had plenty of good flights on it before. i'm kinda frustrated.

ANY HELP???

thanks

max

T-rex 450S CF, Blade CX, Blade CP, A few planks
04-08-2006 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Wa11banger
Elite Veteran
Location: Huntsville, Al

My Posts This: Topic  Forum		well the cool part is the hobico field charger markII can only do 1A providing you pushed the button enough times to make the lights indicate your are charging with lipo algorythms. Secondly that charger is notoriously ceasing to charge at a very safe voltage.. So if you used the right charging algorythm, and never shorted the battery your charger is probably not at fault.. I fly the same battery in my blade and get an easy 11 minutes with it. so 2 mins is extremely low. I would first check and make sure you are pressing the button enough times to charger properly

Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team
04-08-2006 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   HOMEPAGE   GALLERY
 
 
heligrom
Senior Heliman
Location: Long Island NY, USA

My Posts This: Topic  Forum		i am i am pressing it three times as per the instructions. it will be solid green for about 15 secs then start flashing red/green

T-rex 450S CF, Blade CX, Blade CP, A few planks
04-08-2006 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Wa11banger
Elite Veteran
Location: Huntsville, Al

My Posts This: Topic  Forum		hmm is the pack warm in any way? You are probably under voltage most common beginning of charge error

Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team
04-08-2006 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   HOMEPAGE   GALLERY
 
 
toyturbo
Senior Heliman
Location: So. CAL

My Posts This: Topic  Forum		check the pack voltage with a voltmeter. It should not be below 10.0 volts or else you over discharged the lipo.
04-08-2006 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
Wa11banger
Elite Veteran
Location: Huntsville, Al

My Posts This: Topic  Forum		he can actually go to 3v per cell.. I rarely take mine down this far anymore but 9v is still a safe voltage to stop at. it is considered the cutoff voltage.

Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team
04-08-2006 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   HOMEPAGE   GALLERY
 
 
heligrom
Senior Heliman
Location: Long Island NY, USA

My Posts This: Topic  Forum		i actually dont have a voltmeter which i know is stupid. i dont think i overdischarged it though. i'm going to the LHS soon anyway so i'll look into it there

T-rex 450S CF, Blade CX, Blade CP, A few planks
04-08-2006 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
heligrom
Senior Heliman
Location: Long Island NY, USA

My Posts This: Topic  Forum		fixed it ( i hope)!!!!. i actually got it into trickle charge mode somehow and let the battery trickle charge for an hour or so. i then restarted the charging process at 1.2 amps under lipo mode and its charging as we speak!! i think i just need to give the cells a little power boost before the charger would recgonnize them. anyways thanks guys for the help

T-rex 450S CF, Blade CX, Blade CP, A few planks
04-08-2006 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
1 page1536 viewsPOST REPLY
Futaba-RC . Boca Bearings . XHELI.COM

.
.
e-Electric Batteries & Chargers > Did i mess up my Thunderpower Lipo??
 Print TOPIC Advertisers 

Subscribe to This Topic

Sunday, November 8 - 10:43 am - Copyright © 2000 - 2009 runryder.com | email | link to rr | START HERE | NF