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Batterychampion has moved to batteryupgrade. As you are used to at BatteryChampion, you will find batteries and adapters for more than 40,000 devices, but with better service, faster delivery and sharper prices.

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BTC-NK2NSL battery (900 mAh 3.7 V, Black)

Our price: $ 28.49

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Compatible with:
BLS-2, BLS-2N, BLS-4, BMS-2S, BPS-2
Capacity:
900 mAh
Type:
Li-ion
Marianne Pierik
rated us:
(4/5)
Tim O Dwyer
rated us:
(5/5)
General:
It’s a very good service with a smooth purchasing experience from ordering to delivery.
About the product:
Very happy that the batteries I bought for an old Nokia phone are working very well.
Tapio Hamalainen
rated us:
(5/5)
General:
Ok, good product selection. You keep customers well informed about the state of the the order by e-mail.
About the product:
Right stuff, right price. I am very happy that new batteries for my old phone were available.
G van Dijk
rated us:
(5/5)
General:
I am AbSOlute satisfide
About the product:
The product is 100% ok
michael brophy
rated us:
(5/5)
General:
excellent and fast sevice
About the product:
Working very well so far
William Gordon
rated us:
(5/5)
General:
Brilliant!
About the product:
Amazing being able to find an old battery like that! Breathed new life into my old 1999 Nokia - still going strong!
Timothy Rix-Trott
rated us:
(5/5)
General:
easy to search
About the product:
working as expected
peter wilsen
rated us:
(5/5)
General:
surprised by the short time it took to arrive
Tadas Kaminskas
rated us:
(5/5)
General:
fast service, works perfectly
Paolo De Gregori
rated us:
(5/5)
General:
I am very positive about the profesionality and the communication via email with batteryUpgrade. Very good job!!!!!!
About the product:
The same as above. Fast, efficient and profesional.
Willie O'Callaghan
rated us:
(5/5)
General:
Postage was a little slow. Was getting a little worried. Ordered 16.11.11 and delivered 28.11.11) but excellent product
About the product:
Battery for Nokia phone is an excellent product. I am 8 days between charges, the same as the original Nokia battery. I had seen some local cheaper products but seller only guaranteed 3 days between charges so I was not interested.
Joe Magno
rated us:
(5/5)
General:
great service
About the product:
not yet tested
Dmitry Shamarov
rated us:
(5/5)
General:
Supreme service. Fast delivery to Russian Federation. Good order tracking. Thank for your work!
About the product:
Good quality product. Works like original.
Vladimir Honoriu Bonaciu
rated us:
(5/5)
Strava Catalin
rated us:
(5/5)
General:
Excellent
About the product:
Excellent
John Hargis
rated us:
(5/5)
General:
Highly efficient service. Clear website and excellent timing for delivery.
About the product:
Exactly what I ordered with full compatability for my mobile 'phone. Also arraived fully charged so no need to wait before use.
Darryl Knight
rated us:
(5/5)
General:
Great product and easy transaction. Certainly will deal with again.
About the product:
Very happy.
Peter Ward
rated us:
(4/5)
General:
Good value. Not apparent when I ordered that the battery was being sent from HKG.
About the product:
Satisfactory.
Bart Rousseeuw
rated us:
(4/5)
About the product:
slow delivery but material ok
BRENDAN SHEEHAN
rated us:
(4/5)
General:
The company gave a very good and attentive service ,for which I thank you. However the postal service left a lot to be desired ( too slow).
About the product:
As for the batteries they are working very well and seem to have more output than I expected a good investment.
MASSIMO CHIERICI
rated us:
(4/5)
General:
THE POSITIVE FACT IS THAT THE BATTERIES ARE SENT BY MAIL SO THAT IT IS NOT NECESSARY TO STAY AT HOME TO WAIT THE CARRIER.GREAT! I ORDERED 2 BATTERIES AND 1 MEMORY CARD AND I RECIVED THE ITEMS IN 3 DIFFERENT FORWARDING...I WROTE TO U THINKING TO AN ERROR ...I WAS ANSWERED THAT UP TO 5 ITEMS THEY ARE SENT SEPARATELY..IN MY OPINION THIS INFORMATION COULD BE INSERTED IN YOUR INFORMATION PAGE ON YOUR WEB SITE. ANYWAY I AM SATISFIED ABOUT YR SERVICE
About the product:
ITEMS WORK PROPERLY
Marja Tol
rated us:
(4/5)
General:
It took a while but after contact I was informed that it could take some time while it was send from China.And I received the battery correct.
About the product:
Battery works perfectly.
marius francu
rated us:
(4/5)
General:
nothing bad to comments.i satisfied
About the product:
it is verry good
Dick Krabbendam
rated us:
(4/5)
General:
Correct purchasing process. Worked well.
About the product:
OK
Mr Keith Allen
rated us:
(4/5)
General:
Easy to use web site. Full range of products and fast eficient delivery.
About the product:
Battery life is still lower than the original Nokia battery. That was about 10 days and this is only 3 days. At least this one works whereas another from a different source in HK failed to work at all!!!
Bolesław Marek
rated us:
(4/5)
General:
Wszystko ok.zamówiłem ,otrzymałem.Polecam trochę czekałem ale ,to nie jest chleb , stoję twardo na nogach. pozdrawiam Bolesław
Daniel C Baird
rated us:
(5/5)
General:
A very prompt efficient service from a company which I highly recommend. Delivered to my door as opposed to me having to drive 13 miles to town. Definitely 5 stars.
About the product:
First-clas replacement battery for my Nokia 5110, at just over half the price I would pay locally.
Candy Allenby
rated us:
(5/5)
General:
I always use battery champion as very good service and follow up, so absolutely no complaints at all.
About the product:
Excellent, exactly what I ordered.
Antony Jennings
rated us:
(5/5)
General:
Very efficient. I would like to see the produce name in the correspondence and not just the order number
About the product:
Betteries are brand new and in their box
Candy Allenby
rated us:
(5/5)
General:
I have ordered from battery champion 3 times now as the ordering process is effortless and the service delivery is very quick. Many thanks!
Tim O Dwyer
rated us:
(5/5)
General:
Item received as per described and on time, price good too.
About the product:
Battery in an old phone and working well.
David Wong
rated us:
(5/5)
General:
Simple buying process - inclusive postage makes it easier to see actual total cost
About the product:
Works as expected - happy with its performance
aidan heffernan
rated us:
(5/5)
General:
excellent and friendly service.
About the product:
product was high quality and arrived on time
nimrod sadan
rated us:
(5/5)
General:
While waiting for the product to arrive I wasn't sure about how much time it shoud take. Therefore, I wrote to BatteryUpgrade and received immediatly a personal reply about the delivery. The product arrived and I want again to thank the people behind this store that answer so nice and informative that I felt very confident with the purchase.
About the product:
The product is exactly what I expected: new, well packed and working.
Assurance and warranty
The BTC-NK2NSL battery (900 mAh 3.7 V, Black) comes with 12 months warranty. Besides this, we offer a unique 30-day money back guarantee: in case you are not satisfied with the product, for whatever the reason, you can always return it and get your money back.
Quality and safety
This BTC-NK2NSL battery (900 mAh 3.7 V, Black) contains advanced technical components and has been tested according to strict CE safety standards. The BTC-NK2NSL battery contains a chip that prevents overcharging and short-circuiting. Next to this, the BTC-NK2NSL battery is made from high quality cells that do not suffer from a so-called 'memory effect'.
Factory Fast
The BTC-NK2NSL battery is factory fast. Batteries lose performance over their lifetime, even when they are not used. Many importers and resellers store their batteries in stock for a long time before they are sold. BatteryUpgrade.com makes sure that the ordered battery can be shipped directly after production by working together with the manufacturers. So you can be sure that you will get a brand new high quality battery!

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  • Safe, easy, fast
  • For 18 years, the no. 1 battery and adapter specialist
  • Over 1.000.000 customers

Questions? Please contact us!

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