In Stock. Plantronics Cordless Phone Battery Ni-mh Battery Fits Plantronics, Ct11, Ct12 3.6v, 850mah CS-PCT120CL $27.37 Quality components are important for the efficient and smooth operation of your battery. We always use the best parts. Battery selection is confusing. Leave the selection stress to the experts if you are really not sure. We can be contacted easily by live chat or by email. We almost always will respond to your query within a business day. Add to cart