Mid 2006 / model number A1181 / black or white case / 1.83 or 2.0 GHz Intel Core Duo processor.

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Battery issues? Slight discharge while in stop.

Hi. I've got from a local seller a new battery for my Macbook, last serial letters VMN.

As instructed here, I'm now using Coconut Battery to keep it monitored every time.

I noticed that, if I let my new battery charge, it easily reaches the 5400mAh promised on its box, and the upper menu tells me that the battery reached a full 100%, green light.

But when I put it in stop, still with the magsafe on, and still with its green light, after a couple of hours, for example, I get a 99% charge, and Coconut tells me that I've now a charge of 5346 mAh.

I've never noticed such a comportament with my older, cheap battery that, however, kept charging to straight 100% even when I plugged it at 99%.

This battery, correcly refuses to be charged if too close to the dreaded 100%. No problems if I let it go under 95%.

Is that normal, is my battery slighty defective, a power cord issues, or a Macbook issue?

Of course I've already tried to run the Apple Hardware Test, with good results.

I even tried to test with the power cord of a friend's macbook pro.

I've noticed, though, that Coconut Battery, when my unit comes out from the stop, registers a "Battery power usage" of roughly 3 watts, whatever it means, going to zero if unplugged.

I've also noticed a sort of "pattern": when, in stop, the battery discharges under 97%, it charges back to 100%. Twelve hours of sleep without the lid on, and it discharges to 97% and reaches 100% again.

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Apple MacBook "Core Duo" 2.0 13" (Black) Specs

Identifiers: MacBook - MA472LL/A - MacBook1,1 - A1181 - 2092

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Sounds like it's working better than before. You really don't want this thing cycling for under a 3% charge.

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No, I don't.

Since I restored this laptop I always used really cheap battery. I stopped taking for granted things as looking the battery temp staying at 29°C-30°C with peaks of 31°C only when charging, and having the battery send the signal to stop charging after 100%.

Thus, I think I'll never tell anyone to buy eBay spares at 20$ dollars.

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Stefano Gigante will be eternally grateful.
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