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I beg to differ: the PPC range used standard alkaline C cells - not even NiCad rechargeables! 
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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I stand corrected  . C cells, probably still has charge as I remember not much used C cells! 
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As I read this you have a device that has the same alkaline batteries in it from 40 years ago?
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I stuck a set in PPC512 many years ago, last I heard it was still working.
Got replaced a couple of years ago, the company Involved couldn"t change a lightbulb.
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I have laptops with old batteries that do exactly what you're describing. Batteries only last so many years, after that, they can hardly keep a charge. There's no solution to that but to replace it.
I don't think you mentioned how old your battery is...?
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The entire laptop is 18 months old (warranty?)
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Then I wouldn't describe that as "normal" after just 18 months. But then, good luck making that argument with the manufacturer.
On the other hand, you're right, it might be covered by the warranty. Assuming it covers the first 18 months. I wouldn't be entirely surprised if the warranty it came with was barely 12 months.
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Not generally known but for more expensive items one can often make a case to the manufacturer when there is an extreme failure reasonably outside of the warranty window.
After all they don't really want you going around posting that your battery failed after only 18 months.
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Your battery is defective. Good idea to replace it before it catches fire.
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix
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<<beavis&buttheadmode>> Fire, fire, huh, huh <>
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Oooh I know I'm guessing the TP1408 on the battery charger board has popped (common) and it's the sort of thing I enjoy fixing.
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If something were draining the battery that fast then some things in the computer would be getting very warm very fast.
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Well it was getting warm or hot around the area of the interface. Hence me getting a little worried.
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Back in the day I lugged around a Dell 17-inch XPS system whose weight was a real factor in airports. I downsized from that to an Asus 15.6-inch Core-i7 and had to buy an extended-life battery that only added to the weight. I used a wheeled laptop case to deal with all the crap you need -- it's not just the weight of the laptop, but the power block, the cables, and whatever. Now I use an LG Gram-16 12thGen Core-i7 that has amazing battery life and weighs less than a kilo. It's fast, light, has a great screen, and was a reasonable price. VStudio runs in a flash so I can realistically do on-site development when needed.
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Lithium batteries really don't like being kept at 100% state of charge (it degrades them). The way most people use a laptop ensures premature battery failure. My laptop spends 99.9% of its time plugged into a docking station (constantly charging the battery). I doubt if my battery will last any longer than yours.
Laptop makers should add an on-line battery mode that charges (or discharges if needed) the battery to 30% state of charge. At this level of charge a lithium battery has a greatly extended shelf life. When you need to travel, you charge the battery to 100% and off you go.
They wouldn't be able to sell as many replacement batteries if they did this so I don't ever expect to see anything like this.
Phil Ouellette, BSEE
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Battey's in general don't like 100% or anyother value for long periods. You try to tell non-EE people (marketing!) that they look at you like you are selling snake oil.
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They last longest when stored at 40% of capacity. That is why everything you buy with lithium batteries comes charged to about that. Avoid storying batteries at elevated temperatures too. It is ok to freeze them, just warm them up before charging. Charging a frozen battery can destroy it.
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My 2015 vintage Lenovo has battery management so I keep charge at around 55%. click of a button and it will charge full if you know travel is imminent. My new Dell work laptop also has Battery management. I have it also set to keep battery at 50% since it is plugged in and powered on 24/7 99% of the time.
If I am not traveling, I will cycle the battery down to about 20% and then charge it back up and run it back to 50% again maybe once every 6-8 weeks.
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For some reason, "Laptop battery life" made me associate to a Duracell rabbit. Maybe that association is NSFW, thus not suited for the Lounge.
Religious freedom is the freedom to say that two plus two make five.
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I often wonder did Duracell use the rabbit in Europe due to the Engeriser Bunny in the States?
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just venting
This is nothing new, however, I would ask for advise if I should even respond.
I am experiencing "weird behavior " of the tool...I believe I am being fair if I not "mention any names "...
So I posted some comments in "lounge"...
As a "response" unnamed person ( employee of the tool provider ) posted "statistical data " about what I posted , when I posted it etc.
Each item had a comment about me responding or not responding or participating in discussion etc.
In short, this person keeps detailed records about my posts in the forum.
I feel it is fine for him to do so, however , what is bothering me is - I cannot respond in same manner.
This is a clear case , IMHO, I am dammed if I do and dammed if I don't...
PS
In general, I do avoid contact with people who do not like my style...and expect I adapt their opinions / style etc. Life is too short to bother.
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Salvatore Terress wrote: Life is too short to bother.
So why are you complaining about it?
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Because, as his first sentence says: ‘Just venting’ 🤦
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He has history ... lots of it.
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Doesn’t everyone who is more than a few years old?
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