70++ 9 Cell 11.1V 94Wh Battery 0A36303 Compatible with Lenovo ThinkPad T430 T430i T410 T420 T420i T510 T520 T530 L412 L420 L430 L512 L520 L530 W510 W520 W530 0A36302 45N1001 45N1000 45N1010 45N1011

I purchased this battery for my Lenovo T420 as Staples no longer carried a battery for my model. When it finally arrived I followed the break in instructions carefully. It was a perfect fit and is doing a great job. The value for the money was outstanding. The only negative I have is in the shipping. I wasn't able to ship to my P.O. Box and had to use my physical address so I figured it would come by UPS or Fedex. That was not the case as it arrived by U.S.P.S. It arrived 2 days late as it bounced around between two Amazon shipping locations in GA and NC before finally arriving at my P.O. Box anyway. Overall, it was a good experience.

The specifications on the battery label are exactly the same as described. The windows battery report shows: Battery FRU is 45N1001 which correct for W520 70++, the manufacturer is SANYO, design capacity is 90,979 mWh, full charge capacity is 90,979 mWh, cycle count is zero, which shows the battery is not recorded yet, effectively new. When first installed it might not be charged. After deep EC reset, everything becomes normal. It functions as good as the original Lenovo battery and I even think this one is a genuine Lenovo product. Anyway this battery is the best product I have ever bought on Amazon in recent years. Highly recommended!

Battery works correctly and charged right up.

Fit and functioned as OEM. Extended life of laptop to 4 to 5 hours.

Received very quickly and a great price

After getting a battery from a non-Amazon computer parts supplier that did not pass the "Genuine Lenovo" battery check, thereby running the computer but unable to recharge ( and returning the battery), I was going to go with a Lenovo branded battery for ~$84, but decided to try this brand based on their marketing photos showing that their batteries were made with the overcharge protection circuits/chips/boards, and should work. On arriving, I installed in my Lenovo W530 laptop, and no error messages, just a normal boot, and recharged from it's arrival level ~57% to 100% in just over 2 hours. I will buy from this manf/supplier again.

good solid battery, restored the run time to my laptop

To start my t530 has been upgraded to an i7 3720qm and was running a 2core i3 which would last much longer. It is running a SSD as well which is more powerefficient than spinning rust. Runs nearly all day with no power settings set in Arch linux, and max power settings in BIOS. and tons of tabs open/discord and steam open as well. My thinkpad is far from as efficient as the m1 macbook air, but it lasts pretty much all day with this new battery, and i probably wouldn't hesitate to bring it to an office job without a charger. Especially if you're on low power settings in the bios and set the power plan in linux or windows.