Shop our Airplanes Products Drone Products Sales
Thread Tools
This thread is privately moderated by hoppy, who may elect to delete unwanted replies.
Old Mar 13, 2011, 10:08 AM
krisko76651 is offline
Find More Posts by krisko76651
Registered User
krisko76651's Avatar

Soldering !


[QUOTE=Raehm;16569298]Can anyone advise me on the correct and safe procedure for re-soldering a charger lead to a cell?

Thanks,[BE CAREFULL!!!! Don't let the leads touch! Learn from my mistake.]
Sign up now
to remove ads between posts
Old Mar 15, 2011, 08:27 AM
Schermvlieger is offline
Find More Posts by Schermvlieger
I love HAM
Are completely (down to zero volts) discharged cells still chemically volatile somehow? Apart from potentially poisoning yourself with Cobalt or Manganese, are there any risks when completely disassembling such a cell?
Old Mar 15, 2011, 08:39 AM
hoppy is offline
Find More Posts by hoppy
Space Coast USA
hoppy's Avatar
Have never seen a reported incident of a discharged lipo burning/smoking/etc, however, there are risks in opening the cells as the electrolyte/solvent is not human friendly.
See the MSDS-
http://www.batteriesplus.com/msds/Li...SDS%200905.pdf

Why do you want to dissemble the cell?
Old Mar 15, 2011, 08:44 AM
Schermvlieger is offline
Find More Posts by Schermvlieger
I love HAM
Quote:
Originally Posted by hoppy View Post
Have never seen a reported incident of a discharged lipo burning/smoking/etc, however, there are risks in opening the cells as the electrolyte/solvent is not human friendly.
See the MSDS-
http://www.batteriesplus.com/msds/Li...SDS%200905.pdf

Why do you want to dissemble the cell?
Thanks hoppy!

I would like to salvage the micro sized plug to make a plug adapter. I prefer to disconnect the plug from the cell without exposing the electrolyte/chemicals but it might happen that the seal breaks and I like to know the risks.

Sandor
Old Mar 15, 2011, 12:46 PM
hoppy is offline
Find More Posts by hoppy
Space Coast USA
hoppy's Avatar
Shouldn't be a problem as the wires are usually connected to a printed circuit board.
Old Apr 06, 2011, 10:40 PM
jsflyer is offline
Find More Posts by jsflyer
Registered User

Damaged 3s Lipo


I've read the "stickyed" threads on damaged Lipos, and got my 3 cell back to 3.02, 3.00, and 0.70.
Is there a way to charge the one cell without overcharging the other 2?

Thanks,

JSflyer
Last edited by jsflyer; Apr 06, 2011 at 10:57 PM.
Old Apr 06, 2011, 11:26 PM
hoppy is offline
Find More Posts by hoppy
Space Coast USA
hoppy's Avatar
Make a charge cord that connects to the balance connector for only the low cell.
Old Apr 09, 2011, 07:04 AM
jj604 is online now
Find More Posts by jj604
ancora imparo
jj604's Avatar
Sandor, there aren't any boards in these little single cells. However if you carefully cut the plastic shield off you will find the plug has two short wires that solder to the cell tabs. You can:

a) desolder them. or
b) cut them off with side cutters.

Just do it one wire at a time and don't let the cell tabs/wires short out.

There is no need or likelihood of penetrating the cell itself.

You can also get the shield off the Turnigy cells which use hot glue by just heating the battery a bit with a hot air gun till it softens. May not work with batteries that use some other method of attaching the plastic shield.

Hope this is useful. I've also removed a couple of the plugs just by yanking the shield off, then cutting the wires but that's a bit drastic for the first time.

John
Quote:
Originally Posted by hoppy View Post
Shouldn't be a problem as the wires are usually connected to a printed circuit board.
Old May 06, 2011, 10:08 PM
jofro is online now
Find More Posts by jofro
jofro
Hi Guys, having some 5 year daily experience with Lipos I find in above posts that lot of you are playing with the "FIRE" trying to recover bad cells. The most importantly is you should not bring the voltage bellow 3.7V per cell if you want long lasting reliable power supply, Joe.
Old Jun 22, 2011, 10:03 PM
Jane0101 is offline
Find More Posts by Jane0101
Registered User
Thanks, good stuff!
Old Oct 31, 2011, 04:18 AM
jonhalice is offline
Find More Posts by jonhalice
Registered User
jonhalice's Avatar
buy a new one
Old Nov 09, 2011, 02:05 PM
Kawi is offline
Find More Posts by Kawi
\_(ツ)_/
I read through this thread and have a question. I'm trying to recharge a dead 2200 lipo 3cell on a onyx235. I selected nimh but it asks me to select the voltage. There is no 11.1 so which should I go with? I'm going to charge it at .5 amps. It is DEAD! It wont even light up the led readout on the voltmeter.
Old Nov 09, 2011, 10:00 PM
hoppy is offline
Find More Posts by hoppy
Space Coast USA
hoppy's Avatar
NiMH chargers mostly require only an amperage input.
Set it for 0.5A or less and monitor the voltage.
Do not go away and leave it!

When it reaches 10V, you can try it on the lipo charger.

If it gets warm, puffs, or does anything else, discharge and toss.
Old Nov 10, 2011, 02:43 AM
Kawi is offline
Find More Posts by Kawi
\_(ツ)_/
It's that my charger forces me to select a voltage even when selecting to charge nimh. I guess I'll select the closest thing to 11.1 then.
Old Nov 10, 2011, 08:17 AM
hoppy is offline
Find More Posts by hoppy
Space Coast USA
hoppy's Avatar
Try 10.8 .

Keep an eye on it when charging. If anything unusual starts to occur, take it outside.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion unbalanced pack... Is my battery pack DEAD? jnyoun Batteries and Chargers 1 Apr 14, 2009 09:09 PM
Discussion i think my lipo is dead..help..pls.. barok Batteries and Chargers 8 Apr 01, 2007 11:00 PM
My LCD Display is dead! help! Markz DIY Electronics 4 Mar 25, 2004 10:26 AM
My RE 12 went dead!!! help please Extra330 Radios 30 Mar 23, 2004 06:34 PM
Question Lithium-Ion Battery help/info needed. splaice Batteries and Chargers 4 Jun 06, 2003 08:50 PM