Just bought a refurbished Mac Pro tower circa 2009 and wanted to replace the BR2032 battery but couldn't easily find one. Did find a CR 2032 version. Read online the difference but does it mean anything in the working world? Thanks for any insight.
Rich Green
Mac mini, Mac OS X (10.6.8)
No. Different slot bus. The G4 is PCI while the MP is PCIe. But if the monitor supports VGA, then you could use a VGA cable with the 5770 card. I think it has a VGA connector, but even if it does not you can get a VGA to the DVI type connector on the 5770.
No. Different slot bus. The G4 is PCI while the MP is PCIe. But if the monitor supports VGA, then you could use a VGA cable with the 5770 card. I think it has a VGA connector, but even if it does not you can get a VGA to the DVI type connector on the 5770.
Yes, there does seem to be a difference, as I was tempted to put a CR2032 (which I happened to have on hand) to replace the BR2032 that was in my MacMini (2011) while I was installing an SSD.
The difference isn't the size or the voltage, but rather the lithium chemistry and discharge characteristics at higher temperatures. I mean, I'm guessing that a CR2032 would work fine, but I'm going to get a BR2032 battery or two anyway, since the cost is low.
Poly-carbon Monoflouride [(CF)n] Lithium Batteries (BR type)
Manganese Dioxide [MnO2] Lithium Batteries (CR type)
Either should work, but the BR would be the proper replacement if that's what is being used. They have a higher temperature rating that may be relevant inside the computer.
thanks. Guess I'll have to mail order it. It's not a commonly carried battery.
Rich Green
Ask the refurbisher if they replaced the battery already, unless you just want an extra.
I did and they didn't. And since it's the original battery I thought I'd replace it with a fresh one. I'll probably still do that, but I was hoping that the locally available CR types were the same, but I guess not.
Except for the temp rating the two are essentially identical from what I could quickly find out. You can Google search for "br2032 vs cr2032" and look for a link to any Panasonic site.
I had another question that I posted here - https://discussions.apple.com/thread/5718476 -
the question being - "Just purchased a refurbished Mac Pro tower 2009 and am going to connect my mini and migrate the apps and everything to the newer machine. Problem is, the mini has its monitor but the only other one I have is an older one connected to my antique G4 using an ATI 1X3G video card. I was wondering if I would be able to install that card in my tower just so I could monitor the files/apps transfer?"
Would you have any feedback about this?
Thanks again for the previous help.
Regarding the battery, I did that and read that the BR loses it power "quickly" while the CR loses it slowly. I wasn't sure if that mattered with the computer since both last a long time and the power being drawn is tiny.
I don't know, but perhaps the CR will last more than the slated 5 years for the battery that normally is installed.
Thanks regarding the DVI connector. That's the plan. I just need something basic.
Appreciate all your help. Been excellent.
The DVI-I connectors on computers provide BOTH the standard Digital DVI and, hidden in the pins at the end, a direct Analog VGA output. A cheap adapter will pick it off, and that one is better than the one converted from a Mini DisplayPort. [Conversion form Mini DisplayPort requires a complex ACTIVE adapter with a chip in it.]
The VGA pins on a DVI-I connector are salmon-pink in the diagram below, courtesy Wikipedia:
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Is there a difference between a BR 2032 battery and a CR 2032 battery?
