RunRyder RC
 2  Topic Subscribe
WATCH
 1 page 784 views
Scorpion Power Scorpion Power
HelicopterBeginners Corner › LiPo Battery Issue and Charger
03-22-2009 08:49 PM  8 years agoPost 1
UH-1N

rrNovice

New Hampshire

My Posts: All  Forum  Topic

Hi All,

First a special thanks to my mentor, Leslie!!

I have a question about batteries. I have a Lightning Power 3S1P that has a chronic low cell. I get about 6 minutes on a hover and then loose power. I put it on my charger and I get 3.4, 3.8, 3.8. So, I said to myself, I have a low cell. This has been continuing flight after flight.

I thought I would try to perform some first aid. I was thinking about discharging the two good cells to the same level as the low cel and then recharge.

My charger, the TritonEQ, seems extremely limited on functions and features in the LiPo selections... What I mean is that I cannot control charge current(if I want to do a slow charge), I can only discharge upto a max of 1 amp, I cannot charge/discharge a single cell, not that I normally would but I want to try to bring this battery back to life.

What charger/balancer setup do you recommend? I am looking for something with more flexibility for the LiPo functions. Selectable charge rates, >1amp discharge capability, single cell charge/discharge, etc... Any suggestions??

Also, in general, do you think I can "fix" the imbalance of a LiPo? The batteries are "new", that is I bought the Heli used with ~6 flights and 5 batteries, of which the 3 of the 5 were brand new. I did not purchase them from a LHS or through the mail so I am the "second owner", returning the batteries is most likely not an option.

Thanks,
Dave

PM  EMAIL  Attn:RR  Quote
03-22-2009 08:54 PM  8 years agoPost 2
Heli 770

rrProfessor

USA.

My Posts: All  Forum  Topic

That charger has a built in balancer. You have a bad cell in that pack. Time to get another batt pack.

PM  EMAIL  Attn:RR  Quote
03-22-2009 08:59 PM  8 years agoPost 3
dave75d

rrKey Veteran

Jacksonville, FL

My Posts: All  Forum  Topic

trash the pack, you can get a smokin deal on kong power packs from heli direct right now. i see your flying a 450 v2, how much mah are you putting back after 6 mins?

ten grand in helis and all i can do is hover

PM  EMAIL  Attn:RR  Quote
03-22-2009 09:59 PM  8 years agoPost 4
UH-1N

rrNovice

New Hampshire

My Posts: All  Forum  Topic

I am putting in ~1400mA after a six minute hover (power degrades significantly at six minutes) with the bad cell with cell voltages around 3.4, 3.8, 3.8 just after the flight.

Any recommendationson a charger that has more features? I am looking to get a second charger and want something that I can charge at a lower rate than 1C.

The batteries I am using are Lightning Power 2200mAh 3S1P.

Thanks,
Dave

PM  EMAIL  Attn:RR  Quote
03-22-2009 10:34 PM  8 years agoPost 5
Heli 770

rrProfessor

USA.

My Posts: All  Forum  Topic

You can fool the charger by entering 3S 1100Mah and it should charge at 1.1C. but it will stop charging when the charger puts in 1100Mah. So you'll have to do it over again.

PM  EMAIL  Attn:RR  Quote
03-22-2009 10:58 PM  8 years agoPost 6
dave75d

rrKey Veteran

Jacksonville, FL

My Posts: All  Forum  Topic

accu-cycle makes a pretty good charger that i bought long ago. it will charge 2 different batteries at the same time, and comes with a power supply for $150. you can charge at whatever you want, from .2 amps- to 2amp. great setup for the money.

ten grand in helis and all i can do is hover

PM  EMAIL  Attn:RR  Quote
03-23-2009 02:51 PM  8 years agoPost 7
RCHSF

rrKey Veteran

NC

My Posts: All  Forum  Topic

My vote is for a FMA Direct Cellpro 4, and the rookie pack from ReadyHeli.com, about $89.99 for two 3S 11.1v 2200mah packs.

http://www.readyheli.com/Kong_Power...-3litecombo.htm

Or this and get a sepreate charger balancer, and use this pocket balancer/discharge to monitor your packs in the feild.

http://www.readyheli.com/2_Kong_Pow...lancercombo.htm

This is a good charger I have the older model, this one just haves someupdates, and works with my kong powers.

http://www.fmadirect.com/Detail.htm...2306§ion=45

PM  EMAIL  Attn:RR  Quote
03-25-2009 04:38 AM  8 years agoPost 8
Spackle

rrNovice

Amherst, NH

My Posts: All  Forum  Topic

The TritonEQ has a built-in balancer so it should be charging your packs and keeping the individual cells in balance. That is a new charger so I don't know if it has issues with balancing properly or if your battery pack has a problem. You don't need to charge an individual cell, the charger will put a charge current through all the cells in series and use the balancing connector to bleed off the imbalance between cells to keep them balanced.

As far as higher discharge currents, that is only needed for NiCD and NiMH batteries. Cycling and deep discharging of LIPOs has no benefit.

I use a Max E6 balance charger from Hobby City which is a clone of the Bantam B6 charger and works similarly. There are many B6 clones out there. The E6 will allow any charge current in .1A increments up to 5A/50W.

I also have an MKS 3-in-1 balancer/cell meter which can balance your packs with or without a charger. My E6 always keeps the cells in balance but the MKS is good for plugging in a battery and getting a reading on each individual cell. You could use the MKS with the Triton instead of the built-in Triton balancer. The Kong Power balancer referenced in a link in a previous post is a re-brand of the MKS. You can get the MKS from Hobby City cheaper.

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 784 views
Scorpion Power Scorpion Power
HelicopterBeginners Corner › LiPo Battery Issue and Charger
 Print TOPIC  Make Suggestion 

 2  Topic Subscribe

Saturday, November 18 - 3:02 am - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online