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Black VARTA PRAM battery


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#1 just.in.time

just.in.time
  • 6502

Posted 19 May 2017 - 02:32 AM

Battery in subject line is soldered to logic board of my SE. Still at 2.99 volts out of advertised 3 volts on label.

Cut it off or leave it attached? I'm leaving towards cut it off since it is so old.

#2 Themk

Themk
  • 68000
  • LocationU.S.A.

Posted 19 May 2017 - 02:33 AM

I'd leave it attached, those black vartas are cool, and are not prone to leaking, unlike some, um, red colored batteries. YMMV, but I think it would be cool to keep it attached, it still probably hold the PRAM info.


Macintosh SE SuperDrive, Macintosh SE/30, Apple IIgs ROM3, ImageWriterBanger II.

Currently building the amazing 68040! Performa (Quadra??!!) 638CD gets 40MHz full '040 [;)] , Ethernet, 136MB RAM, AV input card, and maybe something else. Should have performance comparable to the Quadra 840av when done! (A/UX doesn't work, but I still like this little guy right here: [:P] )


#3 just.in.time

just.in.time
  • 6502

Posted 19 May 2017 - 02:34 AM

Can confirm, it is still maintaining the PRAM settings.

It has 1088 stamped by a yellow dot matrix on one side. I'm assuming that may indicate October of 1988 manufacturing date.

#4 just.in.time

just.in.time
  • 6502

Posted 19 May 2017 - 02:36 AM

Has anyone ever experienced a black VARTA leak? I know the red Maxell batteries are bombs, and the purple/green tardirans will rarely leak gently, but all of them are long dead in my experience.

#5 Carboy7

Carboy7
  • 6502
  • LocationDurham, North Carolina, USA

Posted 19 May 2017 - 03:56 AM

I have seen Vartas leak just as well as MaxellBombs, though I think Vartas are pretty solid.

 

YMMV, though. These are 20~ year old batteries so they could leak like any other battery.


<p>Blackbird, 145B, PDQ, Clamshell, FlowerPower, Blue Dalmatian, iLamp, LCII, IIsi, QuickSilver, and a Sun SPARCstation 5!

#6 NJRoadfan

NJRoadfan
  • 68000

Posted 19 May 2017 - 11:43 AM

The black Varta in my IIgs is of similar age and still keeping time. No leaks that I can see.



#7 techknight

techknight
  • 68LC040

Posted 19 May 2017 - 09:53 PM

Yep, I had an SE with a black varta that had blew up and damaged the board. 

 

GOTTA GO! 


Main PC: Intel core I7 920, MSI x58 platinum, Radeon4850
PB: tibook G4, ibook G4, ibook g3x2, Lombard, 160, 165, 180, 180c Duo 2300x2, Duo 270c x2, 520cPPC, 3400c, 1400c
Desktop: G3AIO, SE, SE/30, 512k, plus, LCIII, iMac G4, iMac intel, 6400/225

#8 Johnnya101

Johnnya101
  • 68000
  • LocationLancaster, NH

Posted 19 May 2017 - 10:14 PM

Was gonna say that, ANY old battery CAN and WILL blow! Its not worth keeping it in there... Think of the damage it will cause when it does.


resized.gif       BRENT RAMBO APPROVES

Apple IIGS, Classic II, SE/30, Color Classic, Quadra 700, 2x Imagewriter II,  Macintosh Color Display, Power Mac 7100 and 7200, LC II, Macintosh Color Display,  and a box full of ADB keyboards... Soon to be owner of another Quadra 700 and PowerBook 165c


#9 just.in.time

just.in.time
  • 6502

Posted 20 May 2017 - 12:16 AM

Got one confirmed kill from techknight. One is enough for me to clip it.

That said, well done to VARTA for making a battery that has been consistently been powering something since the 1980s! Think about that for a second. So much has changed in this world since 1988 and yet it continues to run the clock and maintain PRAM. Impressive.

#10 Themk

Themk
  • 68000
  • LocationU.S.A.

Posted 20 May 2017 - 01:15 AM

Okay, cool! I've always wanted a black Varta, never had one though. Would you mind selling me the one you clipped of the SE board? Weird request I know, don't feel obligated to honor it! lol


Edited by Themk, 20 May 2017 - 01:41 AM.

Macintosh SE SuperDrive, Macintosh SE/30, Apple IIgs ROM3, ImageWriterBanger II.

Currently building the amazing 68040! Performa (Quadra??!!) 638CD gets 40MHz full '040 [;)] , Ethernet, 136MB RAM, AV input card, and maybe something else. Should have performance comparable to the Quadra 840av when done! (A/UX doesn't work, but I still like this little guy right here: [:P] )


#11 Johnnya101

Johnnya101
  • 68000
  • LocationLancaster, NH

Posted 20 May 2017 - 01:25 AM

Hehe... Ive got two fully intact maxells if anyone wants them...


resized.gif       BRENT RAMBO APPROVES

Apple IIGS, Classic II, SE/30, Color Classic, Quadra 700, 2x Imagewriter II,  Macintosh Color Display, Power Mac 7100 and 7200, LC II, Macintosh Color Display,  and a box full of ADB keyboards... Soon to be owner of another Quadra 700 and PowerBook 165c


#12 Themk

Themk
  • 68000
  • LocationU.S.A.

Posted 20 May 2017 - 01:41 AM

I've already got intact maxells covered!


Macintosh SE SuperDrive, Macintosh SE/30, Apple IIgs ROM3, ImageWriterBanger II.

Currently building the amazing 68040! Performa (Quadra??!!) 638CD gets 40MHz full '040 [;)] , Ethernet, 136MB RAM, AV input card, and maybe something else. Should have performance comparable to the Quadra 840av when done! (A/UX doesn't work, but I still like this little guy right here: [:P] )


#13 techknight

techknight
  • 68LC040

Posted 20 May 2017 - 12:04 PM

Yep, right in the garbage can! haha. 

 

I have had 1 black varta still hold a charge, 1 dead one in a IIgs, and one kerploded one in an SE. 


Main PC: Intel core I7 920, MSI x58 platinum, Radeon4850
PB: tibook G4, ibook G4, ibook g3x2, Lombard, 160, 165, 180, 180c Duo 2300x2, Duo 270c x2, 520cPPC, 3400c, 1400c
Desktop: G3AIO, SE, SE/30, 512k, plus, LCIII, iMac G4, iMac intel, 6400/225

#14 Compgeke

Compgeke
  • 6502
  • LocationFairfield, California

Posted 20 May 2017 - 06:16 PM

Oddly I have 4 good Black Vartas, none bad. One's the black\gold variant and three the black\white ones. I still clip 'em just to be safe but I do still check them every now and then and they still seem to be holding their charge fine.



#15 Scott Baret

Scott Baret
  • 68LC040
  • LocationPittsburgh, PA

Posted 21 May 2017 - 04:31 AM

I have a 29 year old Varta, made in West Germany, still keeping time in my SE.

 

How tough is it to solder in a battery holder? I like to keep working batteries in a few of my Macs and actually just bought a pile of them from a going out of business Radio Shack. I have a dead LC II board to pull a holder from (recapping couldn't save this one).


"Education is life."

#16 techknight

techknight
  • 68LC040

Posted 21 May 2017 - 01:08 PM

I just bought the lista-clone drawers from ratshack finally. I missed my shot in 2015 but finally got a chance. 


Main PC: Intel core I7 920, MSI x58 platinum, Radeon4850
PB: tibook G4, ibook G4, ibook g3x2, Lombard, 160, 165, 180, 180c Duo 2300x2, Duo 270c x2, 520cPPC, 3400c, 1400c
Desktop: G3AIO, SE, SE/30, 512k, plus, LCIII, iMac G4, iMac intel, 6400/225

#17 jack

jack
  • 6502

Posted 25 May 2017 - 07:03 PM

I've got an SE with a Varta in it, still holds a charge... I've been considering buying a battery holder and just swapping it out (to reduce risk), but haven't gotten around to it yet.

 

techknight, what part # did you get from radioshack?


Macs: Plus, SE (x2), IIci, LC II (x2), Classic, Classic II (x2), PB 520, PM 6100, iMac G3 (x2), iLamp G4, iBook G3 Clamshell (x3), iBook G3 Snow, and a big stack of iBook G4's.

Other stuff: Apple IIgs, Sun Ultra 10, ImageBanger II (too many), and plenty of old DOS/Windows machines.





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