• Welcome to the new Mac-Forums. See News and Community Announcements for more details.

New battery still in box for a year

Joined
Dec 20, 2013
Messages
474
Reaction score
3
Points
18
Location
Chalfont, PA
Your Mac's Specs
MacOS Catalina MacBookPro Retina,15 inches Late 2013 Processor 2.3GHz Intel Core i7. Memory 16GB,
Can I switch the battery on my 15 in laptop, 10.15.5. if the battery I bought a year and few months ago?? Or is it no good anymore. keep it in warm place
 

Raz0rEdge

Well-known member
Staff member
Moderator
Joined
Jul 17, 2009
Messages
12,664
Reaction score
305
Points
83
Location
MA
Your Mac's Specs
2018 Mac-Mini macOS Catalina 10.15.5, 32 GB
The battery is likely discharged after this time, so you will have to charge it all up before you can use it.
 
Joined
Dec 20, 2013
Messages
474
Reaction score
3
Points
18
Location
Chalfont, PA
Your Mac's Specs
MacOS Catalina MacBookPro Retina,15 inches Late 2013 Processor 2.3GHz Intel Core i7. Memory 16GB,
The battery is likely discharged after this time, so you will have to charge it all up before you can use it.
So it still good then
 

Raz0rEdge

Well-known member
Staff member
Moderator
Joined
Jul 17, 2009
Messages
12,664
Reaction score
305
Points
83
Location
MA
Your Mac's Specs
2018 Mac-Mini macOS Catalina 10.15.5, 32 GB
Yeah, the batter is likely in deep discharge, but no reason it shouldn't charge up again. I would charge to 100% before unplugging the power.
 
Joined
Jan 1, 2009
Messages
8,052
Reaction score
155
Points
63
Location
Winchester, VA
Your Mac's Specs
MBP 15" Mid 2015, iPhone 11 Pro, an iMac, plus ATVs, AWatch, MacMini
Lithium batteries start to degrade about two years after manufacture, regardless of use (or non-use). So your 1+year old battery is getting close to that two year point. The degradation is slow, at first, so you probably won't notice it, but eventually that battery will fail that much sooner after being put into service. Not to worry about it, just be aware of it. And if you mean "hot" when you say "warm" that can shorten the life as well. Batteries like 60 degrees fahrenheit, 15 celsius for storage. They are petty temperature tolerant, as long as it doesn't get really hot or cold.

All that said, go ahead and use it, it should give a good number of years and cycles before you see any issues with it.
 

chscag

Well-known member
Staff member
Admin
Joined
Jan 23, 2008
Messages
60,470
Reaction score
756
Points
113
Location
Keller, Texas
Your Mac's Specs
2017 27" iMac, 10.5" iPad Pro, iPhone 7+, iPhone 8, iPhone 11, Numerous iPods, Catalina
I would say that it all depends on what kind of battery Ron purchased. Was it from Apple or OWC? Or, an eBay knock off?
 
Joined
Dec 20, 2013
Messages
474
Reaction score
3
Points
18
Location
Chalfont, PA
Your Mac's Specs
MacOS Catalina MacBookPro Retina,15 inches Late 2013 Processor 2.3GHz Intel Core i7. Memory 16GB,
I would say that it all depends on what kind of battery Ron purchased. Was it from Apple or OWC? Or, an eBay knock off?
Yes from OWC. Another question. can I put that battery into computer then charge it
 

chscag

Well-known member
Staff member
Admin
Joined
Jan 23, 2008
Messages
60,470
Reaction score
756
Points
113
Location
Keller, Texas
Your Mac's Specs
2017 27" iMac, 10.5" iPad Pro, iPhone 7+, iPhone 8, iPhone 11, Numerous iPods, Catalina
Yes from OWC. Another question. can I put that battery into computer then charge it
Yes. And a battery from OWC should be of good quality.
 

pigoo3

Well-known member
Staff member
Admin
Joined
May 20, 2008
Messages
41,993
Reaction score
671
Points
113
Location
U.S.
Your Mac's Specs
2011 17" MBP 2.2ghz, 16gig ram, OS 10.11.6
Thread moved to better area (Notebooks).

- Nick
 
Joined
Apr 20, 2009
Messages
4,297
Reaction score
118
Points
63
Location
BeatMichigan
Your Mac's Specs
A few computers, iPhone 11 Pro Max, Apple Watch 1&5, iPad Pro 11"
It’s hard to answer your question without knowing if it had a charge while it was “stored”. Lithium batteries can be put into storage and keep their battery longevity as long as they have around 70-80% charge when initially put away for storage. You never want to put a battery into storage with a full charge, and a battery that is stored with no charge will cause damage to the battery. It definitely not be good after a year. Even after a year, a battery that was stored with 70% charge should still be good if it is not connected to anything.


Sent from my iPhone using Mac-Forums
 
Joined
Dec 20, 2013
Messages
474
Reaction score
3
Points
18
Location
Chalfont, PA
Your Mac's Specs
MacOS Catalina MacBookPro Retina,15 inches Late 2013 Processor 2.3GHz Intel Core i7. Memory 16GB,
Yes. And a battery from OWC should be of good quality.
I replaced the battery yesterday, surprised when I test it before screwing back the back cover and saw it was 27%.. Everything works great. I ran the battery down to 0 then let it sit overnight and charged back too in am. will do that one more time.. then its set

Thats for your replies
 
Joined
Jan 1, 2009
Messages
8,052
Reaction score
155
Points
63
Location
Winchester, VA
Your Mac's Specs
MBP 15" Mid 2015, iPhone 11 Pro, an iMac, plus ATVs, AWatch, MacMini
I ran the battery down to 0 then let it sit overnight and charged back too in am. will do that one more time.. then its set
May I recommend that you not do that? Lithium batteries do not like being discharged all the way to 0. Doing that shortens the life of the battery. Keep lithium batteries between 40-80% at a minimum.
 
Joined
Dec 20, 2013
Messages
474
Reaction score
3
Points
18
Location
Chalfont, PA
Your Mac's Specs
MacOS Catalina MacBookPro Retina,15 inches Late 2013 Processor 2.3GHz Intel Core i7. Memory 16GB,
May I recommend that you not do that? Lithium batteries do not like being discharged all the way to 0. Doing that shortens the life of the battery. Keep lithium batteries between 40-80% at a minimum.
Oh really, thanks for your advised. I keep mine plug in all the time..
 
Joined
Jan 1, 2009
Messages
8,052
Reaction score
155
Points
63
Location
Winchester, VA
Your Mac's Specs
MBP 15" Mid 2015, iPhone 11 Pro, an iMac, plus ATVs, AWatch, MacMini
That recommendation is not for battery health, but for calibration of the software reporting battery remaining. It's not good for the battery, but they don't really care about that, they want their software to be accurate so users don't complain.

From Battery University online: Premature Voltage Cut-off - Battery University

A deep discharge to empty followed a full charge would cause undue stress for the Li-ion.
 
Joined
Jul 6, 2008
Messages
784
Reaction score
30
Points
28
That recommendation is not for battery health, but for calibration of the software reporting battery remaining.
Precisely, as I stated in my post. Thought that’s what the OP was trying to do.
 
Joined
Jan 1, 2009
Messages
8,052
Reaction score
155
Points
63
Location
Winchester, VA
Your Mac's Specs
MBP 15" Mid 2015, iPhone 11 Pro, an iMac, plus ATVs, AWatch, MacMini
But the OP had already run the battery to 0 and charged it, so it is calibrated. No reason to repeat the process.
 
Joined
Jul 6, 2008
Messages
784
Reaction score
30
Points
28
But the OP had already run the battery to 0 and charged it, so it is calibrated. No reason to repeat the process.
Ok, I took your previous post to the OP as saying he shouldn't have done it at ALL (based on your reply here, I now see you meant to refer to his repeat drain, not the initial one), that's why I posted the clarification.
 
Joined
Jan 1, 2009
Messages
8,052
Reaction score
155
Points
63
Location
Winchester, VA
Your Mac's Specs
MBP 15" Mid 2015, iPhone 11 Pro, an iMac, plus ATVs, AWatch, MacMini
Yep, it was targeted at the repeat he said he planned to do.

That said, personally I see zero need for any calibration run at all. Just use the battery and in the course of use you will eventually end up with the battery going very low, which will then calibrate the software. I rarely use the battery, so I don't need to know if I'm at 48%, or 24%, or whatever. When I do use the battery because I have to, I just use it until it warns me it's about to die or until I can get it back on mains, whichever comes first.

But I guess if you really want a well-calibrated battery meter, and if you don't care about abusing the battery a bit, you can do a calibration run.

Different folks, different strokes...
 
Joined
Dec 20, 2013
Messages
474
Reaction score
3
Points
18
Location
Chalfont, PA
Your Mac's Specs
MacOS Catalina MacBookPro Retina,15 inches Late 2013 Processor 2.3GHz Intel Core i7. Memory 16GB,
I did it for Calibration, and was supposed to do 2 times but I did it once and think it should be ok, dont want to do it agin as per MacInWin's advice...Thank for all the replies, always learn something here, love this site, Thank You
 
Top