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My iPod Touch's battery is not performming as well as it should. I've had it for a while. Is there such thing as a battery conditioner that might help get the battery performance better?

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I would love something like this for my laptop. –  geoffc Jul 14 '10 at 19:43
    
In the RC electronics world these are a lifesaver for older or misused batteries. I don't think i've heard of them for devices like phones, laptops or UPCs though. –  ajray Jul 14 '10 at 19:49
    
Good question, as I don't think enough people understand what conditioning is... :) –  Pretzel Aug 6 '10 at 14:06

3 Answers 3

up vote 10 down vote accepted

The iPod Touch has a lithium-ion battery, which really does not need to be conditioned like the older battery technologies did.

In fact, completely discharging a lithium-ion battery too often can severely shorten its life, so I wouldn't recommend doing a full discharge too often. And I wouldn't recommend using something that goes outside the normal voltage range of the battery either.

Discharging occasionally, perhaps once every 30 charges, can help to calibrate the battery so that it can given a better indication of run-time.

Apple recommends discharging completely about once a month.

Lithium-ion has a limited life-span anyway, typically 300-500 cycles; and they degrade over time too. How quickly they degrade depends on how hot they've been stored.

(See Battery University for more information on this)

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+1 for the Battery University reference and talking about all sides of the question. –  Pretzel Aug 6 '10 at 13:54
    
Battery University rocks, but I tend to forget I can use it. Thanks! –  Jim McKeeth Sep 22 '10 at 14:22

Probably it's just getting old. Rechargable batteries wear out over time. About the best you can do is run the battery all the way down to 0%, such that it wont even turn on, and then charge it all the way back up to 100%, without unplugging it, leave it connected to the charger for several hours even after it's back to 100%. Repeat this a couple times, and see if it helps (no promises though).

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This is using the built-in battery controller. A conditioner can (potentially) go beyond the normal use limitations of this in terms of voltage and/or current in order to condition the battery. I'm not sure if the asker was looking for an external conditioner or not. –  ajray Jul 14 '10 at 19:48
    
Since the battery dies so often that is pretty much the normal operating procedure: Use it for a while, leave it off somewhere for a day or two, find it again and it is completely dead. Put it on the charger and then take it off in a day or two to use it. Repeat . . . –  Jim McKeeth Sep 22 '10 at 14:25

Although this doesn't really answer your question so much, I thought I would add to what NJD said as it's important to understand where "conditioning" IS useful.

The only consumer batteries that really benefit from "conditioning" are lead-acid batteries (think: car starter, marine/RV, and motor scooter batteries.) Putting a lead-acid battery thru a reconditioning cycle can "de-sulfate" the plates in the battery giving it back some of its lost capacity.

NiMH and Li-Ion cells don't benefit from "conditioning". You'd just be putting your battery thru an extra deep discharge and charge cycle.

(Although, as NJD pointed out, doing this with a Li-ion battery can sometimes give a more accurate indication of actual run-time due to the recalibration of the circuitry that accompanies the Li-ion battery. It still doesn't improve the battery itself.)

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Thanks for adding that! –  Jim McKeeth Sep 22 '10 at 14:23

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