This battery replaces the Siemens FA128 battery, 4Ah. It is guaranteed to meet or exceed the performance of your original part, and it comes with a One Year Replacement Warranty.

Voltage: 6
Capacity: 4000
Chemistry: NiMH

We guarantee the performance of this Siemens FA128 replacement battery and all of our other products. The Siemens FA128 replacement battery pictured here will ship to anywhere in the continental USA for $4.99 and averagely takes no more than 4-5 business days depending on your location. The Siemens FA128 replacement battery is brand new, not refurbished.