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Tool Talk Discussion Forum

Back up batteries

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Guido

01-15-2020 15:30:55




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Hello,

They are the best I ever used! 20 year shelf life, and rated from 140* F. To -40* F. They are hot though @1.8 volts.

I use them on a power shade, and outlast all others I have tried by at lesst 50%,

Guido.




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spacecadet9

01-16-2020 20:49:16




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 Re: Back up batteries in reply to Guido, 01-15-2020 15:30:55  
Quoting Removed, click Modern View to seeI'm aware of the adapters, but a C size should have a higher mAH rating.



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Guido

01-17-2020 07:34:39




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 Re: Back up batteries in reply to spacecadet9, 01-16-2020 20:49:16  
Bello spacecadet9,

The adapter is more of a conviniance. No AA BATTERY has more Mah then a C size battety, if i recall correctly C size alkaline capacity is about 8000 Mah,

Guido.



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Charles in Aus.

01-16-2020 14:18:12




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 Re: Back up batteries in reply to Guido, 01-15-2020 15:30:55  
Yes they are Ken , it's dreadful how people are lulled into a false sense of security. I used his process to open it when the batteries failed.

I use mine to keep poisons locked up securely in my shed . If a thief opens it they are welcome to have a drink on me :arrow: :shock:



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Fawteen

01-16-2020 03:13:16




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 Re: Back up batteries in reply to Guido, 01-15-2020 15:30:55  
I put a set in a game camera and they've been in there 4-5 years at least. Don't use the camera a lot, but still.

Popped them out and checked the voltage a month or so ago and they're still 1.6xx each. Pretty impressive.



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Charles in Aus.

01-15-2020 23:31:18




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 Re: Back up batteries in reply to Guido, 01-15-2020 15:30:55  
With a shelf life like that Guido they would be ideal for keypads in small solenoid operated safe doors . No real chance of being caught out by flat batteries and no back up key :oops: BTDT.



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Ken Macfarlane

01-16-2020 03:49:30




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 Re: Back up batteries in reply to Charles in Aus., 01-15-2020 23:31:18  
Most of those small safes are pretty easily opened without the batteries. Check out lockpicking lawyer on YouTube.



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spacecadet9

01-15-2020 18:56:00




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 Re: Back up batteries in reply to Guido, 01-15-2020 15:30:55  
What I like about those batteries is they work in the cold, as you mentioned. Outdoor wireless thermometer, trail cam, glove box flash light, etc.. I wish there was a C size also. I ordered a 24 pack from Woot and they were less than alkalines from Wally World.

The other plus is there heavy use life.



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Guido

01-16-2020 13:01:01




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 Re: Back up batteries in reply to spacecadet9, 01-15-2020 18:56:00  
Hello spacecadet9,

They still make the adapters. Found these on Amazon,

Guido.



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Guido

01-16-2020 05:04:46




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 Re: Back up batteries in reply to spacecadet9, 01-15-2020 18:56:00  
Hello spacecadet9,

They make c and d size shells-adapters that take aa batterues. At keast they did, chech the interweb. They may stillbd a availeable,

Guido.



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Janicholson

01-15-2020 18:15:11




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 Re: Back up batteries in reply to Guido, 01-15-2020 15:30:55  
great batteries. Use the unless I am in a pinch. Jim



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Steve@Advance

01-15-2020 17:51:17




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 Re: Back up batteries in reply to Guido, 01-15-2020 15:30:55  
That's what I use for the memory back up batteries on the CNC lathes at work.

The original batteries were special and expensive. I found some 4 battery AA holders on Ebay, they even had the correct pigtail harness plug.

They last several years, never had one leak.



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