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Welcome to Batteryupgrade!

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-NK4LXL battery (1700 mAh 3.7 V)

Our price: $ 27.92

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  • High quality products
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Compatible with:
BP-4L, BP-4LV, N4L11J, SL810, SL820
Capacity:
1700 mAh
Type:
Li-ion
Peter Luck
rated us:
(4/5)
General:
Delivery in good time with updates
About the product:
Bought battery as s back up spare so not used it yet to comment on performance
ATHANASIOS PERISTERIS
rated us:
(4/5)
General:
Excellent prices & good products
holberg masson
rated us:
(4/5)
Kevin Hewetson
rated us:
(5/5)
General:
Easy website to navigate direct to battery I needed
About the product:
Capacity of cellphone battery better than manufacturers original
Ilan Margalit
rated us:
(5/5)
General:
A good place for purchasing batteries. Shipping to my address took somewhat longer than I expected.
About the product:
Meets my expectations so far.
Leslie Bell
rated us:
(5/5)
General:
Good service.
About the product:
A very satisfactory purchase.
Lawrence Myers
rated us:
(5/5)
General:
Battery Upgrade understood what I needed and got it right the first I am well pleased with the service I received .
About the product:
The battery fit my phone ok . I don't have to charge so often . I will order again when I need a new battery.
CARMENCITA GARCIA
rated us:
(5/5)
General:
Thank you very much for the good service.
Jasmina Radič Mavrič
rated us:
(5/5)
General:
Efficient, polite and correct
About the product:
Very good battery
Graham Cornes
rated us:
(5/5)
General:
First class !
About the product:
This was first class also.
Sheila Coghlan
rated us:
(5/5)
General:
Great Service
About the product:
Did the job.
Jean Cowan
rated us:
(5/5)
General:
I was immensely pleased with the service and the selection on offer.
About the product:
My old Nokia mobile phone which I bought many years ago and which I love because its so easy for me to use, finally gave up, but with the new battery installed its as good as new. A miracle, thank you.
Joaquin Sitte
rated us:
(5/5)
General:
The order process was quick and easy. The battery arrived within 2 weeks.

All devices

Assurance and warranty
The BTC-NK4LXL battery (1700 mAh 3.7 V) 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-NK4LXL battery (1700 mAh 3.7 V) contains advanced technical components and has been tested according to strict CE safety standards. The BTC-NK4LXL battery contains a chip that prevents overcharging and short-circuiting. Next to this, the BTC-NK4LXL battery is made from high quality cells that do not suffer from a so-called 'memory effect'.
Factory Fast
The BTC-NK4LXL 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!