Go Back  R/C Tech Forums > General Forums > Nitro Off-Road
LIFE RX BATTERIES??? >

LIFE RX BATTERIES???

Community
Wiki Posts
Search

LIFE RX BATTERIES???

Thread Tools
 
Search this Thread
 
Old 01-06-2010, 07:38 AM
  #1  
Tech Regular
Thread Starter
iTrader: (3)
 
Join Date: Aug 2009
Location: TX
Posts: 307
Trader Rating: 3 (100%+)
Default LIFE RX BATTERIES???

I just ordered new receiver packs for my cars and I am trying to find out a couple things that are not coming up in searches.

1. How often do you have to balance them?

2. can you balance them with an external lipo balancer (charger set on LIFE)

3. I have seen conflicting stories about whether or not you can run a life battery down to low.

Can some of you guys with experience running these batteries please clear this up for me?
matrixmike28 is offline  
Old 01-06-2010, 08:36 AM
  #2  
Tech Master
 
Lille-bror's Avatar
 
Join Date: Jul 2009
Location: Frederikshavn, Denmark
Posts: 1,792
Default

Hi.

You can run them down to where the servos starts to slow down. At that point you not even close to the minimum voltage (4 volt), where the LiFe packs can be destroyed.

Cheers
Lille-bror is offline  
Old 01-06-2010, 12:05 PM
  #3  
Tech Master
iTrader: (31)
 
pickle311's Avatar
 
Join Date: Aug 2009
Location: Austin, TX
Posts: 1,654
Trader Rating: 31 (100%+)
Default

I run one and love it. I can run 3 quals and a 30 min main no problem. Last time after a full day of racing, the voltage was 6.85 and it's only 1450mah. I have yet to balance mine because I get a charge error when I try. For what they cost, I don't care if that decreases the life a little. You'll be happy with it for sure.
pickle311 is offline  
Old 01-06-2010, 01:21 PM
  #4  
Tech Elite
iTrader: (19)
 
looper's Avatar
 
Join Date: Feb 2006
Location: DFW area of Texas
Posts: 2,224
Trader Rating: 19 (100%+)
Default

okay so a 2 cell life pack is 6.6v right?

what voltage do they peak out at?
looper is offline  
Old 01-06-2010, 01:42 PM
  #5  
Tech Master
iTrader: (9)
 
KWT-NITRO's Avatar
 
Join Date: Oct 2008
Location: Kuwait
Posts: 1,616
Trader Rating: 9 (100%+)
Default

yes they are 2 cells 6.6V, mine peaks at 6.8

i think its agreat battery, its a 1700 hyperion, i do my setup(5-10)mintes, 3 qualifiers of 10 minutes + practice and a 45 minutes Amain and still has 30-40% in it. and i always charge it with the balancer, i dont know what's the balancer is for, i just do it , and yes you can use the Lipo balancer (2Cells)

cheers
Ali
KWT-NITRO is offline  
Old 01-06-2010, 02:22 PM
  #6  
Tech Regular
 
Join Date: Dec 2009
Location: Athens,Greece
Posts: 303
Default

a link guys for a good rx life battery.
thanks
the_winner is offline  
Old 01-06-2010, 02:51 PM
  #7  
Tech Addict
iTrader: (1)
 
Join Date: May 2005
Posts: 727
Trader Rating: 1 (100%+)
Default

Make using the right charging scheme. LiPo charge would be at a higher voltage 7.4 instead of 6.6
silverM3 is offline  
Old 01-06-2010, 04:40 PM
  #8  
Tech Regular
Thread Starter
iTrader: (3)
 
Join Date: Aug 2009
Location: TX
Posts: 307
Trader Rating: 3 (100%+)
Default

I have one the external lipo regulators that plugs into the charger through the normal banana plugs. The charger would be on life.
matrixmike28 is offline  
Old 01-06-2010, 05:54 PM
  #9  
Tech Regular
 
Join Date: Dec 2009
Location: Athens,Greece
Posts: 303
Default

Where i can find a life rx battery and it will fit at kyosho radio box? also my charger write that charge lipo/life batteries but at the menu i see only lipo mode..i charge the battery at the lipo balance mode?
the_winner is offline  
Old 01-06-2010, 07:57 PM
  #10  
Tech Champion
iTrader: (25)
 
losi_racer's Avatar
 
Join Date: Nov 2008
Location: mesa,az
Posts: 6,470
Trader Rating: 25 (100%+)
Default

ive searched and searched. anyone know of a life battery for losi radio tray?
losi_racer is offline  
Old 01-06-2010, 08:40 PM
  #11  
Tech Addict
iTrader: (28)
 
Eagle7's Avatar
 
Join Date: Aug 2009
Posts: 633
Trader Rating: 28 (100%+)
Default

Originally Posted by losi_racer
ive searched and searched. anyone know of a life battery for losi radio tray?
Cobra racing is the only company that has one. Everything from hyperion and intelect is to large.
Eagle7 is offline  
Old 01-06-2010, 10:14 PM
  #12  
Tech Addict
iTrader: (24)
 
Join Date: Apr 2007
Location: MEAKIN PARK,QLD,AUS
Posts: 741
Trader Rating: 24 (100%+)
Default

yeah cobra racing have them ive had mine for a few months now, i am very happy with it
meakinracer is offline  
Old 01-06-2010, 10:23 PM
  #13  
Tech Master
 
Lille-bror's Avatar
 
Join Date: Jul 2009
Location: Frederikshavn, Denmark
Posts: 1,792
Default

Originally Posted by silverM3
Make using the right charging scheme. LiPo charge would be at a higher voltage 7.4 instead of 6.6
Hi.

Correct. Some more details:

LiPo cells: 3,7 volt/cell
Max charge voltage: 4,2 volt/cell

LiPoFe: 3,3 volt/cell
Max charge voltage: 3,6 volt/cell

If I remember correct the Cobra Racing pack are 6,4 volt. Don't know how to charge them.


Cheers
Lille-bror is offline  
Old 01-06-2010, 11:34 PM
  #14  
Tech Master
 
Lille-bror's Avatar
 
Join Date: Jul 2009
Location: Frederikshavn, Denmark
Posts: 1,792
Default

Originally Posted by matrixmike28
1. How often do you have to balance them?
I haven’t used my packs in a race yet (60 cm snow her in Denmark ) but I gave it some thoughts: For normal use (practice and qualification) I would charge them with the balancer every time. Before the main final the balancer shouldn’t be necessary for a short quick-charge.


Cheers
Lille-bror is offline  
Old 01-07-2010, 12:21 AM
  #15  
Tech Master
iTrader: (9)
 
KWT-NITRO's Avatar
 
Join Date: Oct 2008
Location: Kuwait
Posts: 1,616
Trader Rating: 9 (100%+)
Default

hello guys,

too many questions

Kyosho packs are any HUMP style life battery: i use this one (Hyperion)
http://aircraft-world.com/shopexd.asp?id=6767

this is from LRP
http://www.lrp.cc/en/products/vtec-b...y-66v/details/

any battery with same dimensions should fit (its a tight fit though)

if your charger doesnt show life, you should see A123 when you search in the battery type. A123 and Life are the same.

charger should be on Life/A123 mode and the balancer is the same for lipo and life.

Losi LIfe Packs are sold by CobraRacing, he's in Australia but shipps worldwide, i'm ordering mine in few days.

cheers

Ali
KWT-NITRO is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.