Wattflyer RC Network: RC Universe :: RCU Magazine :: RCU Forums :: RCU Classifieds :: RCU User Reviews :: RCU YouTube
Home Who's Online Calendar Today's Posts RealTime Post Spy Mark Forums Read
Go Back   WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Electric R/C Airplanes > General Electric Discussions
Register Members List Wattflyer Extras Articles Search Today's Posts Mark Forums Read Social Groups

General Electric Discussions Talk about topics related to e-powered RC flying

Thank you for your support (hide ads)
Reply
 
Thread Tools Display Modes
Old 11-14-2011, 02:21 PM   #1
FlyingBrick50
FlyingBrick50
 
FlyingBrick50's Avatar
 
Join Date: Sep 2010
Location: Florence, SC
Posts: 418
Thanked 15 Times in 15 Posts
Club: Gooney Birds Flo, SC
iTrader: (0)
Friends: (13)
Question Batt Storage

Hey All

What do you consider as storage for li-pos 1 week, 2, 3?
I fly several times a week and keep them charged. Am I hurting them, they seem harder to balance lately(takes more time). I'm going to upgrade my charger as this may be my issue?

http://www.headsuprc.com/servlet/the...-20-Amp/Detail


http://www.headsuprc.com/servlet/the...Balance/Detail

Thanks

FlyingBrick50 is offline  
  Reply With Quote
Old 11-14-2011, 04:12 PM   #2
flydiver
Super Contributor
 
flydiver's Avatar
 
Join Date: Jan 2007
Location: Seattle, WA
Posts: 2,612
View flydiver's Gallery1
Thanked 380 Times in 368 Posts
Awards Showcase

Outstanding Contributor Award 
iTrader: (1)
Friends: (10)
Default

The higher the C-rating the more it seems to suffer from sitting at full charge. How much you notice this depends on the particular battery, the use pattern, and what you expect out of it. This can be very subjective so you get a lot of varying opinions.

Personally I won't let them sit 12 hours at full charge. Minimally I get them below 4v/cell if they are going to be used soon. The longer they are likely to sit, the more I'll work toward 50%.

fly
If you're going to learn to fly them, you have to learn to fix them.
flydiver is offline  
  Reply With Quote
Old 11-16-2011, 08:07 AM   #3
F86-Sabre
New Member
 
Join Date: Nov 2011
Posts: 9
Thanked 2 Times in 2 Posts
iTrader: (0)
Friends: (0)
Default

I dont let my Nanotechs sit fully charged. As soon as i'm back from the field I discharge them to resting voltage. I want maximum peformance from my pack and i want them to last a while. Any high C pack is going to have a short life if not treated well
F86-Sabre is offline  
  Reply With Quote
Old 11-16-2011, 03:58 PM   #4
flydiver
Super Contributor
 
flydiver's Avatar
 
Join Date: Jan 2007
Location: Seattle, WA
Posts: 2,612
View flydiver's Gallery1
Thanked 380 Times in 368 Posts
Awards Showcase

Outstanding Contributor Award 
iTrader: (1)
Friends: (10)
Default

The Nanotechs have a particularly bad reputation for sitting charged. This may also be a function of marketing hype, price>so LOTS of people have bought them thinking "NANO" they must be fantastic, and a lot of the people buying them may still be learning their chops on lipo care. Some folks love them, some folks are very disappointed.

fly
If you're going to learn to fly them, you have to learn to fix them.
flydiver is offline  
  Reply With Quote
Old 11-16-2011, 04:23 PM   #5
SmoothCruizer
-aggressive flyer-
 
SmoothCruizer's Avatar
 
Join Date: Jan 2008
Posts: 2,023
Thanked 10 Times in 10 Posts
iTrader: (0)
Friends: (7)
Default

I love thy NanoTechs.... Those posers out there who do not know how to use them correctly, give them to me.... They have a different chemical structure than the typical Lipo basically electron juice waiting to come alive and it turned my Funjet into a beast! I don't like that the balance is sensitive but I charge my packs correctly...
SmoothCruizer is offline  
  Reply With Quote
Old 11-16-2011, 04:32 PM   #6
FlyingBrick50
FlyingBrick50
 
FlyingBrick50's Avatar
 
Join Date: Sep 2010
Location: Florence, SC
Posts: 418
Thanked 15 Times in 15 Posts
Club: Gooney Birds Flo, SC
iTrader: (0)
Friends: (13)
Question 12 hrs?

Originally Posted by flydiver View Post
The higher the C-rating the more it seems to suffer from sitting at full charge. How much you notice this depends on the particular battery, the use pattern, and what you expect out of it. This can be very subjective so you get a lot of varying opinions.

Personally I won't let them sit 12 hours at full charge. Minimally I get them below 4v/cell if they are going to be used soon. The longer they are likely to sit, the more I'll work toward 50%.
That seems alittle much to me 12 hours hmmmmm,........

FlyingBrick50 is offline  
  Reply With Quote
Old 11-16-2011, 04:44 PM   #7
SmoothCruizer
-aggressive flyer-
 
SmoothCruizer's Avatar
 
Join Date: Jan 2008
Posts: 2,023
Thanked 10 Times in 10 Posts
iTrader: (0)
Friends: (7)
Default

The higher the C-rating the more it seems to suffer from sitting at full charge. How much you notice this depends on the particular battery, the use p


That seems alittle much to me 12 hours hmmmmm,........
Sounds right to me... I hate the thought of my Lipos in Full state .... My hard earn money wasting as they age fast.... Btw my Nano's are resting at 3.88 a cell
SmoothCruizer is offline  
  Reply With Quote
Old 11-18-2011, 12:29 AM   #8
papahnash
Gitten Better
 
Join Date: Dec 2009
Location: High Point, NC
Posts: 7
Thanked 1 Time in 1 Post
Club: Triad Aeromodelers
iTrader: (0)
Friends: (1)
Default

So let me see if I got this right.
Less than 12 hours before I fly, I charge to full.
Fly in the morning.
When I return, I either recharge or discharge to 3.88/ cell.
In the evening I recharge to full so I can use them again tomorrow.
Now that I got it right, the 4 Lipos(2 nanos) that I use most and have been using for 2 years will last forever.
Thanks for the tip.

Harold
papahnash is offline  
  Reply With Quote
Old 11-18-2011, 01:34 AM   #9
FlyingBrick50
FlyingBrick50
 
FlyingBrick50's Avatar
 
Join Date: Sep 2010
Location: Florence, SC
Posts: 418
Thanked 15 Times in 15 Posts
Club: Gooney Birds Flo, SC
iTrader: (0)
Friends: (13)
Thumbs up Yep

Originally Posted by papahnash View Post
So let me see if I got this right.
Less than 12 hours before I fly, I charge to full.
Fly in the morning.
When I return, I either recharge or discharge to 3.88/ cell.
In the evening I recharge to full so I can use them again tomorrow.
Now that I got it right, the 4 Lipos(2 nanos) that I use most and have been using for 2 years will last forever.
Thanks for the tip.

Harold
Amen,....Thanks, for the support,....=-}

FlyingBrick50 is offline  
  Reply With Quote
Old 11-18-2011, 06:45 AM   #10
JetPlaneFlyer
Super Contributor
 
JetPlaneFlyer's Avatar
 
Join Date: Mar 2009
Location: Aberdeen, Scotland
Posts: 4,266
Thanked 471 Times in 439 Posts
Awards Showcase

5kW  Outstanding Contributor Award  1kW 
iTrader: (0)
Friends: (8)
Default

Just another voice supporting the advice not to leave LiPo's fully charged, and yes, Nonos (and I'm sure similar batteries from other manufacturers) do seem especially prone to early puffing if left fully charged for extended periods. It would be nice if the manufacturer told you not to do it rather than having to work it out yourself after puffing a few batteries The ones I have that did puff slightly still work fine though.
JetPlaneFlyer is offline  
  Reply With Quote
Old 11-18-2011, 02:18 PM   #11
SmoothCruizer
-aggressive flyer-
 
SmoothCruizer's Avatar
 
Join Date: Jan 2008
Posts: 2,023
Thanked 10 Times in 10 Posts
iTrader: (0)
Friends: (7)
Default

So let me see if I got this right.
Less than 12 hours before I fly, I charge to full.
Fly in the morning.
When I return, I either recharge or discharge to 3.88/ cell.
In the evening I recharge to full so I can use them again tomorrow.
Now that I got it right, the 4 Lipos(2 nanos) that I use most and have been using for 2 years will last forever.
Thanks for the tip.

Harold
Also check your balances after you fly... I have gotten used to it, I wish I had more time to fly and give more tips for ya, some I will not share I do think 2C charging is quite a topic itself
SmoothCruizer is offline  
  Reply With Quote
Reply

  WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Electric R/C Airplanes > General Electric Discussions

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Welcome New Members to Wattflyer - We ONLY do electric flight here! admin General Electric Discussions 4975 06-08-2014 09:48 AM
Storage jetsmell Beginners 11 09-07-2011 04:38 AM


All times are GMT +1. The time now is 10:29 AM.


Powered by: vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Charities we support Select: Yorkie Rescue  ::  Crohn's & Colitis Foundation



Page generated in 0.20297 seconds with 39 queries