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

Questions? Please contact us!

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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Cordless Phone batteries & AC adapters / chargers

If you have a cordless phone in your home, you can always be reached. By buying a new battery for your cordless phone, it will be good as new and last a long time. We sell batteries, adapters and other parts suitable for brands such as Alcatel, Ascom, Cisco and Siemens. Can't find the battery or adapter you are looking for? Then please contact our help desk, they are happy to help you.

By buying a new battery for your cordless phone, it will be good as new and last a long time. We sell batteries, adapters and other parts suitable for brands such as Alcatel, Ascom, Cisco and Siemens. Can't find the battery or adapter you are looking for? Then please contact our help desk, they are happy to help you.

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Xact

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Yealink

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Reviews

Philip Mortimer rated us:
: (4/5)
Product:: Siemens Gigaset SL565 battery (750 mAh 3.7 V, Black)
General:: The delay was acceptable but not expected. I had to ask.
About the product:: It worked.

Read reviews from other customers

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

Questions? Please contact us!