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What is proper way to store battery?
What is proper way to store battery?
I recently purchased two batteries (one brand-new) for my T30.
I charged one up to 2% (and left the other at 0%) and placed in my kitchen refridgerator.
Should I store them fully charged?
Should I store them fully discharged?
I charged one up to 2% (and left the other at 0%) and placed in my kitchen refridgerator.
Should I store them fully charged?
Should I store them fully discharged?
TuuS-built T61: T8100 2.1 GHz, SXGA+, NVS140M, Patriot 4GB PC2-6400 DDR2-800, Samsung 840 Pro; Thinkpad T30: P4M 1.8 GHz, HYNIX 512 MB PC2700S DDR, Hitachi Travelstar 7K100; SilverStone Raven RVS01; 97 Volvo 850-R, 85 Mitsubishi Starion-ES, Keilwerth SX-90R, Ensoniq TS-12, Kawai EP-608
Re: What is proper way to store battery?
most places i've read suggest 40% charge for long-term storage.
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Support: T520 / T510 / T420 / T400 / R400 / T61 / Yoga 2 Pro / Yoga 13
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Re: What is proper way to store battery?
Ditto, I've read the same. Apparently Lith-Ion batteries will chemically degrade if they are stored for an extended period of time at a 100% charge. I usually parked mine with a 40 to 50% charge on them.sarbin wrote:most places i've read suggest 40% charge for long-term storage.
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Re: What is proper way to store battery?
But after being removed from the laptop, the battery won't remain at 100% for a long time anyway.Majestic wrote:Apparently Lith-Ion batteries will chemically degrade if they are stored for an extended period of time at a 100% charge.
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Re: What is proper way to store battery?
sarbin wrote:most places i've read suggest 40% charge for long-term storage.
Thanks for everyone's replies. I will give them a charge up to 40-50% and hide them in my refridgerator.Majestic wrote: Ditto, I've read the same. Apparently Lith-Ion batteries will chemically degrade if they are stored for an extended period of time at a 100% charge. I usually parked mine with a 40 to 50% charge on them.
TuuS-built T61: T8100 2.1 GHz, SXGA+, NVS140M, Patriot 4GB PC2-6400 DDR2-800, Samsung 840 Pro; Thinkpad T30: P4M 1.8 GHz, HYNIX 512 MB PC2700S DDR, Hitachi Travelstar 7K100; SilverStone Raven RVS01; 97 Volvo 850-R, 85 Mitsubishi Starion-ES, Keilwerth SX-90R, Ensoniq TS-12, Kawai EP-608
Re: What is proper way to store battery?
you're welcome.
i'd also suggest bagging them in a zip-lock for storage and when ready to use, let them come fully to room temp before unbagging so no condensation forms in/on them.
i'd also suggest bagging them in a zip-lock for storage and when ready to use, let them come fully to room temp before unbagging so no condensation forms in/on them.
Current: X1CT-G3 / Helix-G1 / X220 / T61p / T60p / X301 / X200T / Yoga 3 Pro
Support: T520 / T510 / T420 / T400 / R400 / T61 / Yoga 2 Pro / Yoga 13
Hall of Fame: A31p --- Retired: T43 / T30 / T22 / 600X / 380XD
Support: T520 / T510 / T420 / T400 / R400 / T61 / Yoga 2 Pro / Yoga 13
Hall of Fame: A31p --- Retired: T43 / T30 / T22 / 600X / 380XD
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Re: What is proper way to store battery?
The correct statement is Lith-Ion batteries will chemically degrade if they are stored for an extended period of timeMajestic wrote:Apparently Lith-Ion batteries will chemically degrade if they are stored for an extended period of time at a 100% charge.
The level of charge doesn't make that much difference in practice as far as I've ever been able to tell, but some sources indicate that ~40% is probably the best practice charge level for storage.
Cheers,
Bill B.
Re: What is proper way to store battery?
I got in some new sealed A30 batteries (one is charging now) and there was this note in the box:
"Attention
The Li-Ion battery should be recharged at least one time a year to prevent prolonged exposure to zero charge which may cause a memory or no charge condition. It is recommended to charge battery at least 80% of full charge when planning to store battery for extended time."
A few months back I purchased some new old stock Thinkpad 600 series batteries (in the box) and one charged up just fine while the other seems completely dead. So maybe a few too many years of 0 charge is not a good thing? PS is there a utility for 600 series thinkpads that shows battery information like the newer T20 and above machines?
The A30 batteries are Sanyo 2002 manufacture with 0 cycles.
"Attention
The Li-Ion battery should be recharged at least one time a year to prevent prolonged exposure to zero charge which may cause a memory or no charge condition. It is recommended to charge battery at least 80% of full charge when planning to store battery for extended time."
A few months back I purchased some new old stock Thinkpad 600 series batteries (in the box) and one charged up just fine while the other seems completely dead. So maybe a few too many years of 0 charge is not a good thing? PS is there a utility for 600 series thinkpads that shows battery information like the newer T20 and above machines?
The A30 batteries are Sanyo 2002 manufacture with 0 cycles.
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Re: What is proper way to store battery?
With the 600 series, are they lithium ion or nickel metal hydride? If nickel hydride, I find they tend to die over time faster than LiIon. Could explain why one seems dead.
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Re: What is proper way to store battery?
They are Litium, the last time I seen one that wasn't lithium was in a Thinkpad 750 series.
Collection: 310ED, 350C, 360C, 365C, 365XD, 380D, 380XD, 380Z, 390E, 390X, 560X, 600, 600E, 701C, 750CS, 755C, 755CD, 760C, 760CD, 760ED, 760EL, 760XD, 760XL, 765L, 765D, 770, 770E, 770Z, T21, T22, T23, T30, A20P, A21P, A22M, A30, A31, A31P, T40, T42, T43P, T60, T61, R32, R40, R52, T400, T500, W510
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