Quick tech specs
  • Notebook battery
  • 9-cell
  • for ThinkPad L41X; L420; L430; L51X; L520; L530; T410; T420; T430; T520; T530; W520; W530
  • lithium ion
  • 94 Wh
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Keep your device unplugged for longer with the 9-cell ThinkPad Battery 70++. The average run time is 94 watt hours and the battery can be recharged with the ThinkPad External Battery Charger (40Y7625). Each power source uses Lithium-Ion technology and can be used as replacement for damaged system batteries or as a convenient spare. The battery is compatible with T410, T420, T430, T510, T520, T530, W510, W520, W530, L410, L412, L420, L421, L430, L510, L512, L520 and L530 systems.

*Battery life varies due to many factors. These include: applications, battery conditioning, features, screen brightness, power management and other customer preferences.
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Lenovo ThinkPad Battery 70++ - notebook battery - Li-Ion - 94 Wh
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Lenovo ThinkPad Battery 70++ - notebook battery - Li-Ion - 94 Wh is rated 3.98 out of 5 by 46.
Rated 5 out of 5 by from A little to early to tell It's hard to review a battery before I know how long it will last. My Thinkpad 430 has been getting very hot at the battery site. I'm not sure if it's the battery or the laptop.
Date published: 2019-09-18T00:00:00-04:00
Rated 5 out of 5 by from Battery works great. I needed a new laptop battery, and this works great.
Date published: 2018-09-04T00:00:00-04:00
Rated 5 out of 5 by from It’s WELL worth it. This battery revived my favorite laptop ever...the T430. Prior to this battery, I bought a no-name version that lasted about 3 months and never achieved more than 4 hours max life on a good day. Now, with the OEM battery, I’m confident I got what I paid for as evidence of the 9-10 hours of battery life now. Now, I can leave the charger in the bag while I’m at well spent.
Date published: 2019-05-27T00:00:00-04:00
Rated 5 out of 5 by from Excellent Value! Don't be fooled by knock off batteries that are cheaper, you get what you pay for with a Lenovo replacement battery. Our original battery lasted almost three years with daily use. The new one appears to be faster charging as well which is a big plus since we run on battery exclusively. Don't set yourself up for disappointment in a few months with a inexpensive battery that won't hold it charge!
Date published: 2017-07-26T00:00:00-04:00
Rated 5 out of 5 by from works jes fine well packaged, fit easily although extends beyond the case, charged normally, and provides at least 4 hours of battery life. The old bettery had perhaps 20 minutes of charge. So, i am pleased.
Date published: 2019-11-24T00:00:00-05:00
Rated 5 out of 5 by from (used to be?) great I had mine for 5 years and it was awesome. I could work about 8 hour every day. But lately it went wrong and now I can work for about 1 hour. The change was VERY rapid. I thought I would buy another one but after reading recent comments I'm not sure it's worth the money.
Date published: 2016-12-07T00:00:00-05:00
Rated 5 out of 5 by from Always purchase OEM batteries - Knock Offs SUCK!!! OEM hardware replacement for batteries is the only way to go. I thought I'd save myself a bit of cash by ordering on Amazon. That 'knock off' just about fried my laptop by overheating it in less that 5 min. and had short-circuit the cooling fan. When I took it out, not only was the laptop hotter than Hades, so was that knock off battery. I will never by on OEM battery replacements again. Go Lenovo.
Date published: 2019-10-04T00:00:00-04:00
Rated 5 out of 5 by from Will last about 9 months For the price,you don't get the worth.I took great care of my laptop and the battery and only got 9 months out of it.The original lasted longer.
Date published: 2016-02-05T00:00:00-05:00
Rated 5 out of 5 by from I'M POWERED UP! I should have gone to Lenovo first for this replacement battery! HAPPY CAMPER.
Date published: 2019-06-24T00:00:00-04:00
Rated 5 out of 5 by from The Worse Battery Life for any Laptop Ever Same experience as everyone else. The battery holds a charge for about 30-45 minutes before dying. This began just a little over 12 months. I'm not a heavy user either. Very disappointed. Wish there was another option as I don't want to purchase another one only to have it die too.
Date published: 2016-05-12T00:00:00-04:00
Rated 5 out of 5 by from A 1 year affair Like others have said, battery is strong and good for about a year. It degrades pretty quickly after about 13 months of normal use. For the price, this product is not worth it for just a year of optimal usage.
Date published: 2015-11-20T00:00:00-05:00
Rated 5 out of 5 by from Great Battery, highly recommend! works great with my old laptop, long life, and good for a many years
Date published: 2019-08-20T00:00:00-04:00
Rated 5 out of 5 by from Long lifetime here (but hardly use battery) I have a lenovo thinkpad T520 with a 9 cell 55++ battery since 2010 - so for 7 years now with nearly daily use. But 97% i am plugged in but battery is always in. I had around 50 full load cycles due to BMS and battery capacity is still at around 97%, due to batterie-monitor (batmon.exe. So the lifespan is really amazing to me, when you dont push the battery too hard. Never let it go down to 5% capacity or lower (but i guess i even did this a few times in the beginning). Notebook runs on battery for around 3 hours still with midium load.
Date published: 2017-03-02T00:00:00-05:00
Rated 5 out of 5 by from Still at 40% capacity after 5 years After 5 years of daily use (6-10h) with partially-on-ac and partially-on-battery, the battery reports ("upower -d" in Linux): energy-full: 33.6 Wh energy-full-design: 84.3 Wh which means it has about 40% left of original capacity when fully charged. At 4 years it was 53% of original. I can still use it for an hour or so at moderate usage on battery. Many others have reported they can no longer use it without charger (at about same age), but they have used it almost completely on ac so the battery clearly detoriates faster when at 100% charge most of the time.
Date published: 2016-10-29T00:00:00-04:00
Rated 5 out of 5 by from 70++ laptop Battery replacement Excellent replacement battery matching my original battery
Date published: 2019-01-07T00:00:00-05:00
Rated 5 out of 5 by from Works Great! Go with the Lenovo name brand. The batteries will last a lot longer!
Date published: 2018-10-07T00:00:00-04:00
Rated 5 out of 5 by from Great Battery! I bought this battery several years ago and its still performing as expected even after converting to the Linux operating system.
Date published: 2016-08-18T00:00:00-04:00
Rated 5 out of 5 by from Value for $$? Not there at all. I'm on my third battery - second replacement. At 12 months, battery performance drops to less than 25 percent. At 15 months, the battery is useless. T530 laptop and I do all I can to conserve power all the time. At $160 plus shipping, that's over $12 a month for this battery. I will be talking hard to the IT team about upgrading my team's needs to something more adequate as these T530s are costing my budget roughly $3500 a year. A laptop shouldn't have to be upgraded after two years but when you add 20 % of the laptop price to two batteries in two years, the machine is no longer the bargain Lenovo sold it for. Even if you follow all the battery-power conservation advice, the bottom line is the battery is the weakpoint in all Lenovo products. Add 20% of your deployment costs in additional yearly maintenance if you consider Lenovo ThinkPads
Date published: 2016-08-30T00:00:00-04:00
Rated 5 out of 5 by from Good battery It's a good battery. My old battery was the smaller one, purchased 12/2013, and for the first time I was in a position to need battery power. The old battery was on its last legs and I wanted the larger capacity anyway. Happy with the results.
Date published: 2018-09-22T00:00:00-04:00
Rated 5 out of 5 by from best in business got my T430-2349 upgraded from a 6 cell to this 9 cell work horse. very efficient & last for nearly 12 hrs after a single charge with moderate usage.
Date published: 2014-04-25T00:00:00-04:00
Rated 5 out of 5 by from Great, but then no so good When brand new, this could power a W520 Thinkpad (a beast of a machine) for 8 hours of solid activity (max brightness, WiFi/Bluetooth on, some optical drive usage, near constant HD thrashing, 32GB RAM, average 50% CPU) throughout the workday. Fast forward 2 years, and daily cycling the battery power from 100 to 0 and back, and this same battery barely lasts 2hrs with less than half the load (~30% brightness, WiFi on, bluetooth off, no optical usage, sparing HD, 16GB RAM, avg 25% cpu), which is disappointing.
Date published: 2014-05-14T00:00:00-04:00
Rated 5 out of 5 by from Longer stretches between outlets This higher capacity battery has allowed for more time in the field without recharging.
Date published: 2019-10-10T00:00:00-04:00
Rated 5 out of 5 by from Great batteries I try to always buy OEM. Have had poor luck with aftermarket.
Date published: 2017-12-14T00:00:00-05:00
Rated 5 out of 5 by from Happy to find exactly what I needed! The higher capacity battery is necessary because I am running resource-hungry applications. This one filled the bill perfectly.
Date published: 2018-07-13T00:00:00-04:00
Rated 5 out of 5 by from Weakpoint of Laptop I'm on my second 70++ battery. First one lost it's charge capacity over a couple of I years. I bought a replacement and after 1 year and 3 months the battery suddenly died and is outputting 0V. They are very expensive and it seems like it's a bit of a gamble if you get one which is decent or not. Overall it's quite a design flaw in the Thinkpads having such unreliable batteries and is making me other laptops when we buy replacements.
Date published: 2018-06-20T00:00:00-04:00
Rated 5 out of 5 by from New Battery is the Trick I have had my Lenova for over 5 years and the battery was not keeping a charge. I have replaced it with the help of Lenovo staff to ensure I bought the correct one. It works perfectly and no issues. I recommend Lenovo
Date published: 2019-05-16T00:00:00-04:00
Rated 5 out of 5 by from Replacement battery Have had battery for more than a month, & it has worked very well. Glad that I was able to get a replacement for my W530 Thinkpad which still works great!
Date published: 2017-07-19T00:00:00-04:00
Rated 5 out of 5 by from Does not work with T430 as advertised While the Lenovo website says this battery is compatible with the Thinkpad T430, upon receiving, the laptop wouldn't recognize the battery. I called the tech like and they said that it's the wrong battery type. They provided me a different battery # and told me to call the manufacturer directly. So, points do the tech people who steered me correctly but poor advertising.
Date published: 2019-11-11T00:00:00-05:00
Rated 5 out of 5 by from New life for my classic ThinkPad T520 This new 70++ battery provides power even longer than the original.
Date published: 2019-08-01T00:00:00-04:00
Rated 5 out of 5 by from Don't forget the batteries.... This battery brought new life into my wife's laptop that is not used often. After 6+ years. It was time for a replacement battery. Let the on-line holiday shopping begin.
Date published: 2018-12-22T00:00:00-05:00
Rated 5 out of 5 by from Very short life span Used this battery in my Lenovo T520 and it died after 1 year and 6 months
Date published: 2016-11-22T00:00:00-05:00
Rated 5 out of 5 by from Instant success Slipped in, worked immediately and extended the lifetime of my Lenovo T530 "workhouse"!
Date published: 2018-07-13T00:00:00-04:00
Date published: 2014-04-08T00:00:00-04:00
Rated 5 out of 5 by from 1 year Battery Life I had my brand new Thinkpad and after 1 year the battery doesn't hold a charge anymore. They still have this for sale after all the bad reviews? I wonder why they don't fix this problem.
Date published: 2016-08-23T00:00:00-04:00
Rated 5 out of 5 by from Love the 9cell battery!!! In our company we use laptops all day everyday. Having a battery you can trust is a must . I have been getting these Batteries for the Past two years and the 70 ++ has been the one I turn to the 9Cell extended life keeps my guys working not plugged in charging there batteries. that extra life is the difference in getting the job done or having to come back after a recharge.
Date published: 2017-05-16T00:00:00-04:00
Rated 5 out of 5 by from Excellent Received the battery and dropped it directly into my laptop. Even though I had never changed a battery before in a laptop, found it was super simple following the directions. Worked with no problem and has kept on working now for several months with no problem.
Date published: 2017-05-31T00:00:00-04:00
Rated 5 out of 5 by from Trusted parts Always trusted original quality parts directly from Lenovo
Date published: 2020-04-22T00:00:00-04:00
Rated 5 out of 5 by from Battery for T420 Thinkpad laptop, extended battery Great battery life on my T420 Thinpad laptop, extended battery
Date published: 2020-07-26T00:00:00-04:00
Rated 5 out of 5 by from OEM Replacement Battery for ThinkPad 510 Purchased battery for my old T510 laptop. Excellent battery life!
Date published: 2020-04-23T00:00:00-04:00
Rated 5 out of 5 by from Incorrect recommendation It was recommend for my laptop T430 as a replacement but was not compatible. Different shape and landscape.
Date published: 2020-02-19T00:00:00-05:00
Rated 5 out of 5 by from Spend the Money and Buy Your Battery From Lenovo I foolishly bought a battery for my Lenovo Thinkpad T430 a year ago on Amazon. It fit and worked fine, but within no time at all was down to 2-3 hours max. This one so far is holding steady at 8-9 hours. Course I've only had it a few weeks, but I don't think the Amazon one ever had that much time on it. You get what you pay for.
Date published: 2020-05-24T00:00:00-04:00
Rated 5 out of 5 by from Battery refresh Older laptop so batteries can be hard to find.Lenovo was able to provide a fresh battery and system is back the same levels as it was when it was new.
Date published: 2020-04-20T00:00:00-04:00
Rated 5 out of 5 by from Does the job! Brought decent battery life back to a 7+ year old T530. Computer works fine - finding decent batteries is becoming a chore. This one fits the bill.
Date published: 2020-05-26T00:00:00-04:00
Rated 5 out of 5 by from Always Best to get the real thing Over the years I have learned its best to get OEM parts. Especially now with so many questionable knockoff products or so-called "refurbished" items, buying direct from the manufacturer always gets longer lasting quality products. I just began to use this battery but already its obvious it will hold a good charge for a long while.
Date published: 2020-02-14T00:00:00-05:00
Rated 5 out of 5 by from OEM battery Replaced original battery in Lenovo W530. The old battery could not hold a charge. New battery gives about 6 hours. No problems yet.
Date published: 2020-04-06T00:00:00-04:00
Rated 5 out of 5 by from Excellent product Exactly what it should be: a direct drop-in replacement for the original battery I got with my Thinkpad 410i. Speaking of which, that original battery lasted just under 10 years! Since the Thinkpad 410 is still working perfectly despite its age and enough mileage on it to literally go around the world several times it should be obvious why Thinkpads are the only laptops our company uses. One has to wonder if any other brand stocks/supplies replacement parts for gear nearly a decade old? I doubt it. Mainly because unlike the Thinkpads, most other laptops are not build as well and so are expected to be trash in just a few years.
Date published: 2020-08-03T00:00:00-04:00