Performa 575 PRAM battery connector (and question)

#1 Sun, 26 Jul 2015 - 00:10

Hi folks....

Can someone point me to a link to buy the correct PRAM battery connector for a Performa 575? I am looking for the connector that connects the PRAM battery to the logic board. Or, if you happen to have one for sale (with wires or wires and a dead battery) that would be cool.

One more question....

Can someone tell me the mAh rating of the original PRAM battery? I would like to build or buy a PRAM battery that is rated at a higher mAh rating than the original.

Thanks in advance!

jack

#2 Sun, 26 Jul 2015 - 01:25

The Ray-o-vac 840 I removed was 800mAh at 4.5v. It had three rectangular 1.5v alkaline cells in it. 3 alkaline AAA batteries in a holder would make a suitable replacement- I would be inclined to place/install this outside of the computer as forgotten alkaline cells just love to leak.

#3 Sun, 26 Jul 2015 - 02:00

The Rayovac 840 uses a 3p2c (3-Positions, 2-Contacts) pin header connector, with the leads connected on the two outermost contacts. It could also be described as a 4-position connector, but there's plastic filled into one of the holes so not really.

This should work for you:

https://www.futurlec.com/Connectors/HDCONNS4.shtml

http://www.ebay.com/itm/25x-Dupont-Wire-Jumper-Pin-Header-Connector-Housing-1x4-Male-Female-/131221943350

Just be careful with the polarity. Also, be sure to get the crimps that go into it as well: http://www.ebay.com/itm/141446678863

#4 Sun, 26 Jul 2015 - 02:32

Unless you are going for a truly authentic look, just buy this and some AAA batteries.

http://www.ebay.com/itm/331431315073?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

#5 Sun, 26 Jul 2015 - 02:34

MJ313 said:
Unless you are going for a truly authentic look, just buy this and some AAA batteries.

http://www.ebay.com/itm/331431315073?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

That's what I did, although just I snipped & soldered the old connector to my new battery pack. I didn't know someone was selling them though!

#6 Sun, 26 Jul 2015 - 02:45

http://www.alibaba.com/product-detail/4-5v-LR50-button-cell-battery_1893536659.html?spm=a2700.7724857.35.1.0B7SVq

#7 Sun, 26 Jul 2015 - 02:51

dollar tree sells these for a dollar, they have a triple AAA holder in them alrady.

http://deals.dollartree.com/Aluminum-LED-Flashlights-3-frac12-/p330038/index.pro

#8 Sun, 26 Jul 2015 - 16:13

Thanks every one. I will dig in and select something.

jack