Chosen Solution

I replaced the battery in my macbook, connected the power cord and turned it on. The power cord indication light remained green and when I click on the battery percentage it says “replace now.”

hi please try a System Management Controller (SMC) Reset by following the below link :- http://support.apple.com/kb/HT3964?viewl… The fan on your macbook would go high, No need to worry about it with the next restart it behave normal. Keep us posted with the results. . . . If you think i answered your question please rate (score) and mark it accepted. :) Thanks

I had this issue with two replacement batteries, tried the SMC reset, PRAM reset, etc. One of the two responded for a little bit (24-48 hrs), but then would fall back into the “replace now” status and the laptop would not stayed on under battery power. The other battery never responded and immediately said “replace now”. Working with support, I received a cross ship of a third battery and it has worked flawlessly - no SMC reset, no PRAM reset, just replaced and powered up and works great. So, my suggestion is report the issue back to support and get a second (third, fourth…?) sent out to you. Can’t say why, but seems there is some percentage of bad apples in the mix. Note that I used coconutBattery to document the battery situation with replacement #1 & #2 for support. Gives a series of good data points that demonstrates the status with notation of the battery production dates and cycles. When you think you have a good battery, though, make sure you use it for longer than a couple of days before you call it a victory.

I am also having this issue. I just replaced the battery and mine says “Condition: Replace Now.” It will not charge, so I have to keep my MagSafe plugged in or the laptop dies. The battery is supposedly at 44% though. Did another new battery help?? I’m still waiting on a reply from the seller to try to return mine…

Just purchased a battery for my late 2013 model; and after about a month of it working well, it’s now gone into the “Replace Now” status too. By all accounts it seems like it should be fine. Laptop is saying it has great capacity, and it’s only got 9 cycles on it. This battery issue seems to be affecting all parts of my system. Laptop overall is less responsive, boot up takes longer, and random programs opening up, etc. - even while plugged in. Sigh

Did you ever get your battery fixed? I’m having a similar issue with a new battery…

I’m having this issue too…help?

I know, it’s been 7 years since you posted. But I’ll still leave a suggestion. I suggest you check the battery’s condition - by going into System Information (accessible in the Other folder in Launchpad or by clicking System Report… in About This Mac, Apple logo on top left) and going to Hardware>Power. You want to pay attention to “Cycle Count” and see the number. The number should be quite low (e.g. 0-20) if it was truly new, anything like 520 something likely means it’s a used battery from another MacBook. Cycle count isn’t everything however. I had a 2008 MacBook with only 143 cycles yet the battery only held a charge for 5 minutes before dying. Turns out the replacement battery itself was crappy, so it didn’t last long at all.