While the battery may be "new", when was it manufactured, and does the shelf-life affect its storage capcity?
615278
The shelf-life of Li-ion battery "should not" affect the storage capacity as long as it's never been used. I said "should not" because I can't guarantee it. However, I bought this battery and the capacity was never as much as it claims, and starts to weaken after only about 6 months of use.
417492
It didn't say that it wasn't new when i purchased the battery. I assumed that it was new. It sure doesnt work like a new battery though. It is better (slightly) than a dying battery which is what a had at the time. So, if you looking for a slight upgrade for the cost; it is a good deal.
380070
The batteries i purchased does not have a manufacture date to my knowledge. At least i can't find a date. I will say the batteries hold a charge longer than the original. The original battery i was charging every night. The new battery about twice a week, sometimes once per week. The batteries are made in China, but what isn't.
1270129
Doesn't seem to have a clear Manufacture date. This battery is almost identical to the original battery NA1BA04CS/4-B vs NA1B14DS/4-B (Not sure which is the original any more) if this helps, but its the only info that is different on the batteries. The two i have are so similar I can't tell which is the original. I even Googled it and not alot came up with identifying a positive manufacture date for this battery. sorry I couldn't answer your question, but I hope this gives u some benefit, anyway I think it is worth the buy considering its probably less expensive than at a battery store or a walmart type store if u can even find 1. My the odds forever be in your favor! Doesn't seem to have a clear Manufacture date. This battery is almost identical to the original battery NA1BA04CS/4-B vs NA1B14DS/4-B (Not sure which is the original any more) if this helps, but its the only info that is different on the batteries. The two i have are so similar I can't tell which is the original. I even Googled it and not alot came up with identifying a positive manufacture date for this battery. sorry I couldn't answer your question, but I hope this gives u some benefit, anyway I think it is worth the buy considering its probably less expensive than at a battery store or a... » Read More Doesn't seem to have a clear Manufacture date. This battery is almost identical to the original battery NA1BA04CS/4-B vs NA1B14DS/4-B (Not sure which is the original any more) if this helps, but its the only info that is different on the batteries. The two i have are so similar I can't tell which is the original. I even Googled it and not alot came up with identifying a positive manufacture date for this battery. sorry I couldn't answer your question, but I hope this gives u some benefit, anyway I think it is worth the buy considering its probably less expensive than at a battery store or a walmart type store if u can even find 1. My the odds forever be in your favor! « Show Less
2129042
I don't know manufacture date . But I do Know this battery is very good , after 100+ cycles,new battery is @ 106% or 5840 mAh , Design capacity is 5450 mAh on the Mac BookPro , I am getting 400 mAh extra . OEM is GOOD DEAL .
1708261
I dont remember. So far I am very happy with this battery. I bought it about 2 months ago and have had no issues with it. It fits perfectly, it arrived on time and is otherwise working very well. It was cheap enough that by the time you were to pay for shipping to return it and get it returned to you, you would likely be just as well buying a new one. The most important thing is to make sure you recycle it properly!
1294774
The battery I received had a manufacture date. If the battery is new it will typically last 2.5 to 3 years. There was no paperwork with a warranty or guarantee with my purchase.
114055
If I remember correctly, I had a 30 day replacement. I would have to go back through my purchase information. I can tell you as of now, I have had no problem what so ever with this replacement battery
291343
The date on the front side of the Battery is the Best used by date. The number on the bottom of my batteries looks more like a manufacturing control number than a date.
848560
All batteries have a finite shelf life. A *great* shelf life for a battery is 5 years. Most of the older battery technologies wouldn't come close to lasting 5 years on the shelf. Statements like "these batteries will last 10 years on the shelf" are optimistic, for pretty much any battery made, although Lithium batteries can last that long (to about 70% of their fresh capacity). Frankly, at the price these batteries are, I buy them and use what I need. If in 2017 or 2018 I don't find I am getting good service from them, I will buy more for less money and be happy about it - just my opinion. The do say "Use by 2023" on the back label of the package. Depending on the Storage temperature your mileage may vary. Do not freeze batteries, but keeping them cold can extend shelf life. Also, do not use cold - warm them first, as battery efficiency is drastically reduced at lower temperatures. So batteries stored in the refrigerator should be warmed to room temperature (NEVER in an oven) gradually before being put into service.
635546
These batteries came in a plastic bag with no expiration date. The bag only said that they are "new." When I consider the fact that one of these batteries costs $6 at stores, I am happy with my purchase.
655354
It all depend on the freshness of the battery. 03-2020 is the expiration date. 1111A is the manufacture date code which stand for Made in November of 2011. The latest batteries are currently manufactured in 2014 and should have 12-2024 expiration date and xx14A (xx = month) date code. Newer battery has more capacity and longer shelf-life. Each seller may have different dated stock so be sure to check the description for the item condition. You may have to ask the seller directly if the info is not listed.
624624
Both batteries were new as far as I could tell. Unit and batteries have been fine. I use mine once a week or more 7 months of the year at least.
535130
From all appearances it was new, but even my old battery has no external signs of wear. So that is no indication of use. It arrived in a small fitted clear plastic envelope inside the shipping packaging. These may be seconds (failed quality control) hence the low price? My local retailer sells this same battery for over $30 USD.
1869481
I purchased this battery in October. The one I received was white. It has returned the computer to battery-life times that are comparable to when the computer was new. 3-4 hours of word processing while connected to the internet, 5+ hours of casual web surfing and 2 - 3 hours of video editing. Seems to be a good value, just not sure if it is better that the $25 versions that are available.
291344
my batteries had a " best by" date on the side of each of the batteries. The date was 4+ years from the date of purchase. as I use 10 at a time to replace smoke alarm batteries this was an adequate shelf life for me.
1819949
I didn't look for the manufactured date. Mine has been working perfect with no problems at all.