Lenovo ThinkPad Battery 68 + ( Retail MFG P/N; 0C52862 ) Lithium Ion 6 Cell Battery

Battery arrived on time and in perfect condition.Now at first I could not get it to activate. Nick was extremely helpful when I phoned Liquid PC customer service this morning. Initially my laptop would not turn on with my new battery inserted, so I feared the worst. We confirmed I received the right battery and that I had a compatible machine (Thinkpad T440). I tried the battery one last time, and voilà, my machine turned on! Nick explained how this is a common occurrence because new hardware is not always recognized immediately. So if anyone experiences the same problem, they are advised to do a reactivation cycle, taking the battery in and out a couple of times both with and without the adapter plugged in.Nick gave me more advice about how to prolong the lifetime of the battery, advice you won't hear from Lenovo themselves because they have an interest in selling as many batteries as possible. It is best to let the battery drain to 0, then detach and reattach the battery, then charge to full, then repeat. This calibrates the battery for maximum performance and promotes longevity of the unit.I recommend the seller and I am especially excited because the new battery is rated 72 kW-hr, an upgrade over 48, which is the battery that came with my device.

I originally gave this a one star, but then realized it was the old Lenovo charging cable that had just worn out. Got a new one and so far the battery seems to be great.

This will keep you going for a long, long time. With my T450s, Windows projected the battery life out to 15 hours. I haven't done a complete rundown yet, but in shorter use cases, the battery levels when I'm done are still extremely high.I recommend using the standard 3-cell in day-to-day use, since stock battery life is usually fine for my needs, it doesn't stick out the back, and most importantly, I want to keep as few charge cycles on the extended battery so when I need to use it for an extended period without the charger, I have the full force.The one thing to note though is to be aware of the seller. I originally ordered this product via Blue Donuts, and whether via an Amazon mistake or a mislabeled product, I was sent a battery for the wrong computer. The return process was very easy, however, and I used my refund to buy from a different seller, and I am now very happy with the product.

The seller, Liquid U.S.A., was able to help sort out an ordering issue and got the battery shipped fast. Has worked great for about a year, the battery is big enough that I can usually skip a day between charging.

I'm not too scientific here, using with T450s: The projected power usually says 13 hr at full charge when in active use. Doing nothing but reading can probably get more. I keep my screen as dim as I can without being annoyed in ambient light (like 0.25 of the way of the brightness setting). After delivery, I left the machine unplugged for 3-4 days with intermittent use (I also use a desktop daily) without having to charge. Beyond that I'm not serious enough setup a timer to verify, but 13 hours seems about right ... more if I hot swap the original factory battery when the extended battery is low. I sticks out but on a table the angled keyboard is comfortable. The added weight of the battery is not bothersome to me, I'm still comfortable grabbing the laptop 1 handed moving from 1 room to another.

I purchased this battery from Power Up LLC back in March 2018. This was a used battery, but it was genuine and I believe they claimed it was above 90% life so I went for it. I received a Sanyo manufactured battery at about 95% life I believe, so it was practically unused.I've had zero issues with the battery. I get a battery life of around 9-10 hours on a T440s browsing the internet, reading PDFs, and coding.

Love the battery life when the first time I turn it on I let it sit for awhile. Mine said 14 hours. Of course I'm not going to let it sit idle to check that #. How hard you use it , who knows how long before you have to charge it. I'm not payed enough to find out. Heck, I'm retired and don't get payed for anything.

This battery is absolutely amazing! I purchased this for my T460 and I get nearly 18 hours of battery life through a normal day. With just word processing, I could get more than 24 hours easily. This battery also raises the height of the laptop slightly, which makes for a better typing position. Overall, very worth the money.

I bought this to replace a somewhat tired lower capacity battery on a recently purchased refurbished Thinkpad. I chose the option supplied and delivered by Amazon on the assumption that it would probably guarantee a genuine Lenovo product and that seems to be the case. The date of manufacture was quite recent and all the documentation and product markings were correct. The battery was only carrying about 10% charge but took just a couple of hours to reach full charge and diagnostic software then showed it to be in 100% condition, with a working life around 13 hours. As others have said, this battery raises the laptop a little but it's not obtrusive and improves the keyboard angle somewhat.So far, I'm very happy with the purchase.

I was a little wary with the plethora of batteries and some of the bad reviews for other manufacturers, so decided to go for the OEM version and hope it wasn't a fake given the Amazon price was less than many of the other sites. However, having inserted into my laptop and using the Lenovo battery software (Vantage), it had a number of full battery cycles so far and is currently slightly outperforming the design specs. So very pleased.

Never bothered to get the extra battery until I started working from remote places often, now I'm so glad I have it. In my Fedora 21 Linux machine, this allows me to work for about 5 hours with moderate CPU usage (not just browsing, also compiling stuff), and goes well over it if I just browse the web.It did bother me a bit the extra weight and size (which makes this sleek laptop look uglier) at the beginning, but only until I realized that the angle I get now for the keyboard makes it actually more comfortable to type on, so I'm cool about it now.

Bought this to replace the aging 3-cell battery in a used T450S that I’ve recently bought.I’ve been using the laptop for about 2 hours now, and Windows is showing the battery life has only gone down to 70%. This would be the same point that the old battery was pretty much dead.Pretty great improvement!It does add some weight to the laptop and stick out of the bottom though, but I find the increased angle actually makes using the keyboard a nicer experience.

Works great with my T440s. New with 0 charge cycles and estimates over 19hrs of battery life compared to 7hrs before. Sure, my thinkpad becomes a bit heavier and bulkier, but this is offset by not having to carry my charger to work.