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Battery conditioning.

post #1 of 14
6/25/04 at 9:51pm
Thread Starter 
As I know it so far, to "condition" a battery, all one needs to do is let the battery die out before recharging it fully the first few times?

To do this, would it be a better idea to do it slowly (i.e. putting it on the bios until it runs out), or to give it a lot of load (like watching a DVD.. or playing memory-intensive games) and do it quickly?

Thanks,
Kelvie
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post #2 of 14
6/25/04 at 10:08pm
It completely depends on what kind of battery you are talking about. Which kind do you have?
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post #3 of 14
6/26/04 at 4:14am
Thread Starter 
Lith-ion 8-cell on the Ferrari.
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post #4 of 14
6/26/04 at 12:45pm
If you want to do it under 'full load' be aware Windows Power Manager will probably shut it down before a full drain. Mine is set to Hibernate @ 7% left.
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post #5 of 14
6/26/04 at 2:07pm
Quote:
Originally Posted by olyteddy
If you want to do it under 'full load' be aware Windows Power Manager will probably shut it down before a full drain. Mine is set to Hibernate @ 7% left.
But that can be taken off so that it doesnt happen.
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post #6 of 14
6/26/04 at 2:11pm
Quote:
Originally Posted by Kelvie
Lith-ion 8-cell on the Ferrari.
Quote:
Originally Posted by BatteryUniversity.com
A lithium-ion battery provides 300-500 discharge/charge cycles. The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges.
http://www.batteryuniversity.com/parttwo-34.htm


Your method of conditioning is wrong and should be avoided with lithium-iuon batteries. I think you were thinking of the method used for nickle-cadium batteries...
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post #7 of 14
6/27/04 at 12:38am
so whats the deal with conditioning. so i get my compaq with a 12 cell lith-ion. what must i do to make sure i get the most life out of it?
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post #8 of 14
6/27/04 at 12:59am
http://www.batteryuniversity.com/parttwo-34.htm

Quote:
Simple Guidelines

* Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.)
Short battery life in a laptop is mainly caused by heat rather than charge/discharge patterns.
* Although memory-free, apply a deliberate full discharge once every 30 charges to calibrate batteries with fuel gauge. Running down the battery in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate. The battery life will not be affected.
* Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.
* Consider removing the battery from a laptop when running on fixed power. (Some laptop manufacturers are concerned about dust and moisture accumulating inside the battery casing.)
* Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing date. Do not buy old stock, even if sold at clearance prices.
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post #9 of 14
6/27/04 at 1:02am
thank you enderat. i actualy just went to that site and read the whole thing. so no special "conditioning" required. just need to keep it in a cool spot especialy when on charge. there is no maintenance i can do because it loses capacity with age anyway (all i can do is keep it in a cool spot to avoid accelarated aging) and have it on charge a few extra times over draining it to the cut-off and then recharging it all the way.
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post #10 of 14
6/27/04 at 1:49am
Quote:
Originally Posted by Enderet
http://www.batteryuniversity.com/parttwo-34.htm


Your method of conditioning is wrong and should be avoided with lithium-iuon batteries. I think you were thinking of the method used for nickle-cadium batteries...

Hey, nice article. I think it should clear up the many misconceptions of lithium ion batteries. It's evovled so much since the old days of Nick-cad batteries.

PEOPLE DON'T WORRY ABOUT CONDITIONING LITHIUM ION BATTERIES OR LEAKING CHARGES WHILE NOT IN USE LIKE NICKEL CADMIUM BATTERIES!!
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post #11 of 14
6/27/04 at 1:55am
No problem guys... I think I should give credit to MARQUISDARQUIS, who was the person that showed me that site to begin with.
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post #12 of 14
6/27/04 at 3:46am
Thanks Enderet, but I owe it to someone who challenged my previous thoughts on the matter so I made a thorough search and discovered U of Batt which forced me to change my ideas. Just goes to show its always best to check your facts before you open your month, if for nothing other reason than to check your shoe size.
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post #13 of 14
6/27/04 at 5:39am
Thread Starter 
Wow.. in the manual it says to condition it (discharge/recharge 3 times), so I was a little confused.
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post #14 of 14
6/27/04 at 6:34pm
Quote:
Originally Posted by Kelvie
Wow.. in the manual it says to condition it (discharge/recharge 3 times), so I was a little confused.
You got a manual? wow.
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