Recent Topics
150K on the old Bey-Em-Vey today!
by fdcg27
11/25/14 06:03 PM
0W-30 Mobil-1 $20/5 quart jug at local AutoZone
by wgtoys
11/25/14 05:43 PM
how to change tire while driving
by friendly_jacek
11/25/14 05:29 PM
LC20 and varnish removal
by boy412
11/25/14 04:44 PM
06' Audi A4 2.0T FSI GC 0w-30 12k miles
by smonska
11/25/14 04:19 PM
OLM 2006 Saturn Relay w/3.5
by tnt31
11/25/14 03:49 PM
35 mm slides > digital
by Nayov
11/25/14 03:37 PM
What can I do with 6 quarts of peanut oil?
by eljefino
11/25/14 03:23 PM
Any amazing deals on oil for black friday?
by Realtech214
11/25/14 03:16 PM
INTEL 730 Series SSD
by Rand
11/25/14 02:52 PM
Anyone going to the Daytona Turkey Run?
by Panzerman
11/25/14 02:08 PM
How long do you keep your cars?
by qdeezie
11/25/14 01:36 PM
Newest Members
xc_racer, walken100, pjazz, 35445, jsgrind
51995 Registered Users
Who's Online
100 registered (anonobomber, babyivan, abycat, BHopkins, 01_celica_gt, AdRock, 9 invisible), 1571 Guests and 156 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51995 Members
66 Forums
222606 Topics
3523734 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: 4021
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 31k penplat0w20
03 chevy avalanche63k m1 0-30
02 saturnsc1 57k pennultra
01 saturnsc1 165k nextgenhm
93 ciera 65k 5w30napasyn
gz250 hdeo15w40

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



Registered: 12/14/02
Posts: 34008
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: 4021
Loc: out there
Thanks !!
_________________________
13 elantra 31k penplat0w20
03 chevy avalanche63k m1 0-30
02 saturnsc1 57k pennultra
01 saturnsc1 165k nextgenhm
93 ciera 65k 5w30napasyn
gz250 hdeo15w40

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


Registered: 08/20/07
Posts: 1037
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: 957
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: 2831
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: 6484
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 Online   content


Registered: 06/13/13
Posts: 724
Loc: Virginia


Edited by mattwithcats (09/05/13 12:16 AM)

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


Registered: 12/30/10
Posts: 421
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: 1423
Loc: Rochester, NY
I have done it before... just do it quickly! Solder flux is a good idea.
_________________________
2005 Chevrolet Cobalt - 85,000 mi.
2012 Mazda5 - 63,000 mi.

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


Registered: 07/22/05
Posts: 8329
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: 6125
Loc: Leamington, ON, Canada ..... r...
Clean & flux the area. Get the iron HOT. Get in and get out. You'll be fine.
_________________________
"Over 6,000 posts... about 30 of them good ones" coffee


2007 Uplander LS RWB .. ST dino, NAPA Pro-Select filter (quite sufficient)


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


Registered: 08/22/09
Posts: 2831
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: 4021
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 31k penplat0w20
03 chevy avalanche63k m1 0-30
02 saturnsc1 57k pennultra
01 saturnsc1 165k nextgenhm
93 ciera 65k 5w30napasyn
gz250 hdeo15w40

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


Registered: 11/14/10
Posts: 2152
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