School Savers - TI-84+ CE Rechargeable Battery no wires
Exell 3.7V 1300mAh Replacement Battery For Texas INSTRUMENTSN2/AC/2L1/A TI- 84 C Silver TI-84 Plus C Silver Edition TI-Nspire CAS Touchpad Part NO 1815 F071D 3.7L1060SP 3.7L1200SP 3.7L1230SP 541383800002-G0311
Amazon.com: Texas Instruments Rechargeable Battery for TI-84 C Silver Edition Graphing Calculator + Guerrilla USB Cable (Calculator not Included) : Electronics
TI-84 Plus Silver Edition Main Battery Replacement - iFixit Repair Guide