Replacement battery for 4642-E434-V12 SEG/N. Specifications: 1100mAh, 3.7V, Li-Polymer. Compatible with: 4642-E434-V12 SEG/N. Replaces: Spetrotec AE6036501S1P. Spetrotec replacement battery designed for GPS/Navigator devices. Ensures your device stays powered through regular use.