Sirius SL2 XM Battery - Replacement for Sirius Stiletto 2 Satellite Radio Battery (1400mAh, 3.7V, Lithium-Ion) Replacement Battery for Sirius SL2 XM, Stiletto 2, SL2, SL2 XM, 1070000014, AE737173025076 Battery Capacity: 1400mAh, Voltage: 3.7, Type: Lithium-Ion Lifetime Warranty On Sale for a Limited Time! Grade A Quality. High Capacity.