between this battery: Sony VAIO VGN-FS920 Li-Ion Battery SKU #: MPVGP-BPS2 Category: Laptop Description: Replacement Li-Ion battery, compatibility guaranteed. Input rating: 11.1 volts, 4.8 amps. Ships in 1-2 business days, 30-day money back guarantee. New with 1-year warranty. Price: $116.10 and this one: Sony VAIO VGN-FS920 Li-Ion Long-Life Battery SKU #: MP-SNY013 Category: Laptop Description: Replacement Li-Ion battery, compatibility guaranteed. Input rating: 11.1 volts, 7.2 amps. Ships in 1-2 business days, 30-day money back guarantee. New with 1-year warranty. Price: $98.10 The one that says "long life" is cheaper, and has more amps(dont know if that is good) Thanks.