Recent Topics
2016 Kia Soul what oil
by mailman74
02/14/16 12:54 PM
Mom's Car Advice - Jeep Patriot
by Nick1994
02/14/16 12:12 PM
Educate Me on Royal Purple
by CrackyWainwright
02/14/16 11:45 AM
Castrol Edge (Belgium) 0W-40 @ Walmart $25.97
by Ed_Flecko
02/14/16 11:27 AM
Old house questions (part 2)
by Nick R
02/14/16 10:58 AM
Trust older tire balancing equipment?
by Corollaman
02/14/16 10:46 AM
Jon J Riccardo,Iacocca Predecessor
by NHGUY
02/14/16 10:17 AM
Mobil "424" variation
by Lemioux
02/14/16 10:07 AM
2016 Malibu
by Tzu
02/14/16 07:47 AM
2011 Outback, Unknown Oil, 5K miles
by Al
02/14/16 07:13 AM
Mechanics of no-fault insurance
by Quattro Pete
02/14/16 06:10 AM
Classic Shell Start Menu
by GumbyJarvis
02/14/16 03:35 AM
Newest Members
Lemioux, Tsr71, SubaFool, dookchoppa, Formula413
56911 Registered Users
Who's Online
113 registered (2002 Maxima SE, andyd, 1989outlaw, Bandito440, aquariuscsm, Atesz792, 9 invisible), 1782 Guests and 99 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
56911 Members
66 Forums
244683 Topics
3985931 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3115240 - 09/04/13 09:53 PM soldering on nimh battery
spasm3 Offline


Registered: 05/30/10
Posts: 5906
Loc: out there
My wife has this facial scrubber that won't charge anymore, i tore it apart and found 2 nimh aa batteries soldered onto the circuit board tabs with a solder strip on the bottom making them in series. I don't know if its safe to solder on replacement nimh batteries. I would never try it on a lithium ion battery. Should I ?
_________________________
13 elantra 39k 5w30 ultra
03 chevy avalanche64k pyb
02 saturnsc1 62k 0w40 castrol
01 saturnsc1 185k being rebuilt
93 ciera 71k 5w30mc5k

Top
#3115241 - 09/04/13 09:55 PM Re: soldering on nimh battery [Re: spasm3]
JHZR2 Offline



Registered: 12/14/02
Posts: 37341
Loc: New Jersey
All batteries will have degradation due to chemistry changes under heat. There is not a volatile organic electrolyte that will break down at low temperatures as in Li-ion. I would do it but be very cognizant still of how much heat youre putting in - it flows axially very fast as it is in the plane of the current collector.

Top
#3115245 - 09/04/13 09:57 PM Re: soldering on nimh battery [Re: spasm3]
spasm3 Offline


Registered: 05/30/10
Posts: 5906
Loc: out there
Thanks !!
_________________________
13 elantra 39k 5w30 ultra
03 chevy avalanche64k pyb
02 saturnsc1 62k 0w40 castrol
01 saturnsc1 185k being rebuilt
93 ciera 71k 5w30mc5k

Top
#3115276 - 09/04/13 10:31 PM Re: soldering on nimh battery [Re: spasm3]
Michael_P Offline


Registered: 08/20/07
Posts: 1447
Loc: Ohio
Check out cordless phone batteries. I have retrofitted them for many non phone applications.

Top
#3115282 - 09/04/13 10:41 PM Re: soldering on nimh battery [Re: spasm3]
bvance554 Offline


Registered: 09/24/12
Posts: 1552
Loc: VA
Yes you can solder Nimh batteries with no worries.

Top
#3115290 - 09/04/13 10:49 PM Re: soldering on nimh battery [Re: spasm3]
JimPghPA Offline


Registered: 08/22/09
Posts: 3026
Loc: Pittsburgh,PA U.S.A.
It might be a good idea to be sure there is no oily surfaces by wiping it with some alcohol, and then rough up the surfaces on the batteries with many scratches. Scratches make soldering to a new battery much easier and you will not have to keep the heat on the battery as long as it would take if the surfaces were not scratched.
_________________________
Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa


Top
#3115312 - 09/04/13 11:28 PM Re: soldering on nimh battery [Re: spasm3]
Quest Offline


Registered: 12/19/04
Posts: 7354
Loc: beaver land EH?
sand paper and solder flux are your friends.

Q.
_________________________
"Internet discussion boards act as echo chambers for conspiracy dittoheads" A.Allen

Top
#3115330 - 09/05/13 12:11 AM Re: soldering on nimh battery [Re: spasm3]
mattwithcats Offline


Registered: 06/13/13
Posts: 1334
Loc: Virginia


Edited by mattwithcats (09/05/13 12:16 AM)
_________________________
2009 Smart Pure
Pennzoil Platinum Euro 0W-40
Purolator Synthetic PSL 14610
175/55R15 tires...

Top
#3115339 - 09/05/13 12:54 AM Re: soldering on nimh battery [Re: spasm3]
Andy636 Offline


Registered: 12/30/10
Posts: 651
Loc: Romania
Perfectly safe to do. I used to build my own batteries packs for RC boats and planes use 8-12 NiMH cells and never had a problem but whatever you do stay away from Li batteries smile

Best way to do it is with an arc welder but flux welding works as well.

Top
#3115454 - 09/05/13 07:08 AM Re: soldering on nimh battery [Re: spasm3]
NateDN10 Offline


Registered: 01/10/10
Posts: 1568
Loc: Rochester, NY
I have done it before... just do it quickly! Solder flux is a good idea.
_________________________
2005 Chevrolet Cobalt - 95,000 mi.
2012 Mazda5 - 80,000 mi.

Top
#3115843 - 09/05/13 02:24 PM Re: soldering on nimh battery [Re: spasm3]
Vikas Offline


Registered: 07/22/05
Posts: 10046
Loc: NorthEast
I had never heard the wife's instrument being refereed as "facial scrubber" though :-)


Edited by Vikas (09/05/13 02:25 PM)

Top
#3115995 - 09/05/13 05:53 PM Re: soldering on nimh battery [Re: spasm3]
Papa Bear Offline


Registered: 08/11/05
Posts: 6404
Loc: Leamington, ON, Canada ..... r...
Clean & flux the area. Get the iron HOT. Get in and get out. You'll be fine.
_________________________

I'm not too bright - old age and forgetfulness complicate things as well" ..???
I would agree with you but then we'd both be wrong


Top
#3116897 - 09/06/13 03:55 PM Re: soldering on nimh battery [Re: spasm3]
JimPghPA Offline


Registered: 08/22/09
Posts: 3026
Loc: Pittsburgh,PA U.S.A.
If you have not bought the batteries yet, mattwithcats is correct about getting cells with the solder tabs already on them.

Also, look for a "Batteries Plus" store in your area, they can sell you the cells with tabs or even make a pack for you. They usually have a spot welder that will make the small spot welds on metal straps and build the entire pack for you.

BTW, one of the things to keep in mind is that if you have bare wire or uninsulated metal straps as the connections between the cells, be sure they can not touch the outer part of the cells.
_________________________
Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa


Top
#3117187 - 09/06/13 09:31 PM Re: soldering on nimh battery [Re: JimPghPA]
spasm3 Offline


Registered: 05/30/10
Posts: 5906
Loc: out there
Originally Posted By: JimPghPA
If you have not bought the batteries yet, mattwithcats is correct about getting cells with the solder tabs already on them.




Thanks to both of you! I did'nt know i could get them with tabs!
_________________________
13 elantra 39k 5w30 ultra
03 chevy avalanche64k pyb
02 saturnsc1 62k 0w40 castrol
01 saturnsc1 185k being rebuilt
93 ciera 71k 5w30mc5k

Top
#3117434 - 09/07/13 07:51 AM Re: soldering on nimh battery [Re: Vikas]
Errtt Offline


Registered: 11/14/10
Posts: 2358
Loc: California
Originally Posted By: Vikas
I had never heard the wife's instrument being refereed as "facial scrubber" though :-)

Ya have now ;>O

Top