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Poly battery

Mfg # 64399-03 CDW # 1221145 | UNSPSC 43191600

Quick tech specs

  • for SupraPlus Wireless CS351
  • CS361
  • CS351N
  • CS361N
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Know your gear

Plantronics' mission is to enhance personal communication. Plantronics helps make people more productive, safe, and comfortable improving the clarity of communications. Plantronics is committed to ensuring that its products meet customer requirements and are committed to quality and customer satisfaction.

This product is designed for Plantronics SupraPlus Wireless CS351, CS361.

This item was discontinued on January 29, 2024

Enhance your purchase

Poly battery is rated 4.67 out of 5 by 55.
Rated 5 out of 5 by from Battery died I just purchased 2 batteries, 1 has already gone dead and dosnt work, I need to be refunded for the 1. [This review was collected as part of a promotion.]
Date published: 2016-11-10T00:00:00-05:00
Rated 5 out of 5 by from New Life replaced my old battery with a new one and I don't have to invest in buying a new expensive headset. I brought new life to my old cs50
Date published: 2015-08-08T00:00:00-04:00
Rated 5 out of 5 by from null Perfect product, fast shipping and easy order process [This review was collected as part of a promotion.]
Date published: 2016-02-10T00:00:00-05:00
Rated 5 out of 5 by from Battery Must Have Everyone has to have batteries sometimes to operate things. Quick and easy to order, came on time
Date published: 2017-06-26T00:00:00-04:00
Rated 5 out of 5 by from Energized! We needed new batteries for our Plantronics headsets. I don't think the originals had ever been replaced so we were in dire straights. These new batteries arrived pretty quickly and were easy to install. Our headsets are now like brand new and the charge lasts through an entire shift without beeping!
Date published: 2015-11-19T00:00:00-05:00
Rated 5 out of 5 by from just in time! I purchased the battery to my headset just in time for the old battery to die! the website made my purchase easy and the instructions were very simple
Date published: 2014-10-02T00:00:00-04:00
Rated 5 out of 5 by from Excellent replaced battery after 3 years of constant use of my phone. I feel like I have a new phone, thanks! my phone head set stays charged all day now!
Date published: 2014-11-06T00:00:00-05:00
Rated 5 out of 5 by from Works good as new. I bought this battery to replace the original one in my Plantronics C50 headset. Considering that I bought the original device more than 14 years ago, I have to say that Plantronics make really durable and long lasting batteries. Of course it was more expensive than the ones you can find on Amazon, but honestly you get what you pay for. Cheaper does not mean long lasting. [This review was collected as part of a promotion.]
Date published: 2016-02-25T00:00:00-05:00
Rated 5 out of 5 by from Works Great I recently purchased the replacement battery for our CS50. My old battery would not hold a charge for more than an hour.  The new battery has greatly increased that. 
Date published: 2014-04-04T00:00:00-04:00
Rated 5 out of 5 by from Excellent service and shipping Product was easy install and corrected problem. Easy process.
Date published: 2014-06-25T00:00:00-04:00
Rated 5 out of 5 by from CS50-USB Battery I've had this unit for about five years now and replaced the battery once before with a non-OEM brand, which expanded inside the earpiece to where it was difficult to remove. DO NOT go cheap! Purchase an OEM Plantronics battery to avoid any issues that could damage your Plantronics investment by using non-OEM replacement batteries.
Date published: 2014-11-24T00:00:00-05:00
Rated 5 out of 5 by from Working at expected The battery was easy to replace as is working great!
Date published: 2015-04-22T00:00:00-04:00
Rated 5 out of 5 by from Works like a charm! We bought the Plantronics item 3 years ago, and it has worked like a charm. The only trouble I have had is that eventually the battery wears out. Plantronics online chat helped me locate the part I needed and it came only a few days later than I had expected. [This review was collected as part of a promotion.]
Date published: 2016-03-30T00:00:00-04:00
Rated 5 out of 5 by from Needed a new battery I have had my Plantronics headset since - ??? Anyway, it's been easily 10 years or more and the battery lasted that long - pretty impressive. I look forward to similar long life with the new replacement. Installation was quick and easy (it was for me, anyway).
Date published: 2015-02-10T00:00:00-05:00
Rated 5 out of 5 by from Works Great I purchased this battery a couple weeks ago because my current headset battery was not holding a charge for very long. Now that the battery has been replaced I can wear my headset all day without a charge and not have the battery die by the end of my shift
Date published: 2015-11-02T00:00:00-05:00
Rated 5 out of 5 by from Works Great Headset was not holding its charge so ordered this new battery and it has been working great!
Date published: 2015-07-22T00:00:00-04:00
Rated 5 out of 5 by from Dead Battery Left it on the cradle for four days untouched. Returned to find it dead.
Date published: 2014-09-23T00:00:00-04:00
Rated 5 out of 5 by from great product. but excellent service is the key love the product. love the customer service even more.
Date published: 2014-05-05T00:00:00-04:00
Rated 5 out of 5 by from As expected. Battery: easy to remove old one/ and install new one. Works as I'd expect it to.
Date published: 2014-12-15T00:00:00-05:00
Rated 5 out of 5 by from Back to its old self! I have had my Plantronics headset for ~5 years and was having some random issues that I finally decided was related to its ability to hold a charge. Didn't want to give up my current headset because I seemed to have better call clarity and MUCH better tech support than any of my co-workers. Ordered a new battery and am I pleased to be back in business. Once ever 5 years, I will gladly pay to replace the battery. Thanks for making such a high quality headset, you have earned a loyal customer and a lot of recommendations to my co-workers!
Date published: 2015-03-27T00:00:00-04:00
Rated 5 out of 5 by from Impossible to replace battery I didn't want to have to invest in another headset from Plantronics, so at their suggestion, I purchased this little battery. It is impossible to plug in to the headset because it's so small and fits way too tight. The directions provided are brief and not a lot of help. It would be nice if the pieces really fit together. I'm looking for another headset, but I will go to another manufacturer. Sorry, Plantronics.
Date published: 2015-11-02T00:00:00-05:00
Rated 5 out of 5 by from Fast shipping Nice to be able to purchase a battery for my headset that is little aged
Date published: 2017-11-28T00:00:00-05:00
Rated 5 out of 5 by from works great! Old battery wouldn't hold a charge new one is like having new equipment
Date published: 2014-11-24T00:00:00-05:00
Rated 5 out of 5 by from Excellent Service Fast and easy service. The product was delivered very quickly.
Date published: 2015-02-24T00:00:00-05:00
Rated 5 out of 5 by from Works well Ideally would be nice to have instructions to install the battery but I was able to download the user manual on the website to get instructions.
Date published: 2016-02-23T00:00:00-05:00
Rated 5 out of 5 by from always reliable never an issue and always ways works as advertised
Date published: 2017-12-15T00:00:00-05:00
Rated 5 out of 5 by from Back in business again!! Timely delivery. Hard to get item locally. Was happy to find a place online I could get the batteries. Everything is fully charged again!
Date published: 2016-11-16T00:00:00-05:00
Rated 5 out of 5 by from Great customer Service I purchased replacement Battery for Wireless Headsets. The Plantronics Wireless headsets are great, now over two years old is still in really good condition, the batteries have recently been changed and works great. receive fantastic customer service when called.
Date published: 2014-03-25T00:00:00-04:00
Rated 5 out of 5 by from Easy to navigate Right on time! Found the part we needed without any difficulty
Date published: 2013-12-21T00:00:00-05:00
Rated 5 out of 5 by from Good Quality I replaced a recently bought generic brand battery and now the headset is much clearer and feels like brand new! It is so true , 'You get what you pay for'...
Date published: 2014-11-26T00:00:00-05:00
Rated 5 out of 5 by from Works well Got it within a week of ordering. Thanks for such quick service!
Date published: 2014-12-10T00:00:00-05:00
Rated 5 out of 5 by from Perfect fit I needed to replace the battery in my headset and this was easy to install and immediately use.
Date published: 2017-06-19T00:00:00-04:00
Rated 5 out of 5 by from My Headset work like new. I needed a magnifying glass to install it. Pictures only in the operators manual, but this little battery performs.
Date published: 2015-07-04T00:00:00-04:00
Rated 5 out of 5 by from null Arrived quickly and worked perfectly. Easy install
Date published: 2016-03-22T00:00:00-04:00
Rated 5 out of 5 by from Replacement battery Needed a replacement battery for my headset and it came quickly and charged, great service!
Date published: 2015-11-04T00:00:00-05:00
Rated 5 out of 5 by from Worked great! Battery fit right in and worked right away - fully charged! [This review was collected as part of a promotion.]
Date published: 2016-02-27T00:00:00-05:00
Rated 5 out of 5 by from Perfect replacement for my CS50 I've had my CS50 for several years and use all day, excellent product.  The battery was finally going and ordered a new one.  I received as advertised in 2 days and works perfect.  Very Happy.
Date published: 2013-11-08T00:00:00-05:00
Rated 5 out of 5 by from Easy to install - I'm back to full functionality. This was the fix I needed. Glad I bought just the battery as apposed to a whole new head-set.
Date published: 2015-06-26T00:00:00-04:00
Rated 5 out of 5 by from BATTERY FOR CS55 I bought replacement batteries for 3 headsets a little over a year ago and they only last 4-5 hours and then start beeping and die. I love the headsets, but spending that much money every year is horrible. need to make the batteries last at least 2 years for that price.
Date published: 2016-05-27T00:00:00-04:00
Rated 5 out of 5 by from Works and arrived quickly Battery worked as advertised - no surprise. Didn't need a long charge before use either. Also, it arrived quickly. The support person quickly led me to the item that I needed (but if you're reading this that probably doesn't matter).
Date published: 2014-12-01T00:00:00-05:00
Rated 5 out of 5 by from quick turn around I got it, put it in, it worked! pretty much sums it up
Date published: 2015-03-23T00:00:00-04:00
Rated 5 out of 5 by from Ease of ordering Although the item that I needed was no longer listed in the replacement parts section on line, Diego was able to locate it for me and helped me process my order quickly and politely. [This review was collected as part of a promotion.]
Date published: 2016-03-09T00:00:00-05:00
Rated 5 out of 5 by from Another 10 years! It was great to see that I could purchase a replacement battery for my CS50 headset. Great product that I have been using for almost 10 years but the battery had failed to charge. Good to see they had a replacement for a reasonable price
Date published: 2015-07-28T00:00:00-04:00
Rated 5 out of 5 by from Right battery arrived in a few days My headset battery died after serving me well for abou 4 years or so. Got the correct battery, it was easy to install and the headset is now back in action.
Date published: 2015-02-11T00:00:00-05:00
Rated 5 out of 5 by from Easy install Bought two of these because headsets were not holding a charge. Replacement instructions were clear and easy, and my users are happy.
Date published: 2015-03-21T00:00:00-04:00
Rated 5 out of 5 by from Reliable Headest Battery for CS50 The new battery allows me to talk on my headset work phone again without worrying that the headset will lose power in the middle of a conference meeting or a business call. Unlike many products sold these days, I didn't have to buy a new headset when my battery needed replacing. Score!
Date published: 2015-10-28T00:00:00-04:00
Rated 5 out of 5 by from Battery replacement Replaced battery with approved new battery. Best & excellent solution which has added years to a perfectly good wireless headset. Excellent battery, easy online purchase, easy installation and quick delivery.
Date published: 2016-11-09T00:00:00-05:00
Rated 5 out of 5 by from fast quick service Customer Service was quick to reply and my product arrived fast.
Date published: 2015-02-09T00:00:00-05:00
Rated 5 out of 5 by from Great product! Customer service was very helpful in selecting the correct battery. It took awhile to ship but all was correct and performs as advertised. Easy installation. it was a little pricy but it was a perfect match. Will do it again in a heartbeat.
Date published: 2016-12-16T00:00:00-05:00
Rated 5 out of 5 by from Plantronics CS55 Headset System System wasn't working properly but tech support was great. Got it up and working again in 5 minutes. Very patient. This type of tech support isn't common these days. A+++++++++ thank you. ed
Date published: 2015-02-18T00:00:00-05:00
Rated 5 out of 5 by from Replacement battery works great! Bought this after purchasing a discounted battery from what was likely a reseller. Did get full refund from reseller, but then went to source, Plantronics, for advice. Thoroughly helpful and knowledgeable customer service rep. New battery in headset for a few weeks now and works great!
Date published: 2017-02-23T00:00:00-05:00
Rated 5 out of 5 by from Turned a useless old head phone into a delight Turned a useless old head phone into a delightful usable piece of equipment that makes my life easier!
Date published: 2017-08-31T00:00:00-04:00
Rated 5 out of 5 by from Replacement battery Purchased the replacement battery for the telephone headset that was experiencing problems. Replacing the battery worked well and staff are pleased to have use of the headset once again.
Date published: 2015-03-30T00:00:00-04:00
Rated 5 out of 5 by from Quick and easy to install Just a replacement battery, but was quick and easy to install and my headset is back in operation
Date published: 2014-02-20T00:00:00-05:00
Rated 5 out of 5 by from Money well spent! My headset was dying after about an hour and a half of use and I did not want to be tethered to my desk, I had to do something. Management wasn't willing to buy me a new headset but I talked my way into a replacement battery, now I'm set for the day. Typically I only go 4 hours between charges but a few times it lasted 6 with no sign of fading.
Date published: 2014-12-16T00:00:00-05:00