Axiom Battery For AT&T/Lucent SL8218, SL82208, SL82218, SL82308, SL82318, SL82408, SL82418, SL82518, SL82558, SL82658 4Pack Long-Lasting Axiom Ni-MH Rechargeable Battery Capacity(Power): 850mAh Over-voltage and Short-circuit Protection No Memory Effect Package Includes: 4x Axiom Cordless-phone Batteries