r/toughbook • u/rekcahtnitsud • 15d 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 15d 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 15d 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 15d 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 15d 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/Alone_Ad_4861 15d ago
I just got a cf33 recently too, batteries discharge 1 at a time
And 8 hours total or 4h each.
The extended packs are 10h each 20h total or there abouts
I'm running Win 11 on mine and I think the way the battery percent makes sense but its weird. (One battery will be at 15% and the other at 100% but the laptop will say like 30% battery left)