On Order Bt Cordless Phone Battery Li-ion Battery fits Bt, Granite, Grundig, D780 3.7V, 500mAh CS-PHS900CL $26.94 As one of the worlds most successful third party battery manufacturers Cameron Sino have been certified and approved by multiple authorities. There products are all verified and tested for safety. We try to keep our data as current as possible, but there may be occasions when new models have not been updated to the website yet. If in doubt contact us... Add to cart