r/toughbook • u/rekcahtnitsud • 16d ago

TechSupport Battery question

I just got a great condition cf33 and was wondering, do the batteries discharge one at a time and have 8ish hours a piece or total? Its saying battery 2 in use and battery 1 is fully charged.

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u/Tgambob 16d ago

Do you have the flat batteries or the extended batteries? Flat 4ish hours a batt so 8ish total. Extended can get silly with 8 to 10ish a batt. I think one test got 20 hours out of them with brand new batteries.

All that depends on what you are using it for though and how many cycles on the batteries.

Using the air card will use more power but still last way longer then any other laptop with new batteries

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u/rekcahtnitsud 16d ago

I have the flat ones. Mainly using it for paperwork and running sdrtrunk. I'm happy either way but wanting to get new batteries eventually.

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u/Tgambob 16d ago

New batteries are not too expensive straight from a Panasonic retailer. Around 250 for the set. If you want to swap the back out you can fit the extended batteries you just can't put it on the keyboard backwards and close it anymore.

Use the Panasonic utility and check the battery health you might have some decent packs.

Even my bum batteries last longer then my brand new expensive dell precision by several times. Like its hilarious the difference.

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u/rekcahtnitsud 16d ago

I picked this unit up for $200 with no ssd. Had it running and charging in 20 minutes lol.

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u/RuggedOrDie 13d ago

running a battery calibration an assist in extending the battery life too!