  We report on a thermonuclear (type-I) X-ray burst that was detected from the
neutron star low-mass X-ray binary SAX J1810.8-2609 in 2007 with Swift. This
event was longer (~20 min) and more energetic (a radiated energy of Eb~6.5E39
erg) than other X-ray bursts observed from this source. A possible explanation
for the peculiar properties is that the X-ray burst occurred during the early
stage of the outburst when the neutron star was relatively cold, which allows
for the accumulation of a thicker layer of fuel. We also report on a new
accretion outburst of SAX J1810.8-2609 that was observed with MAXI and Swift in
2012. The outburst had a duration of ~17 days and reached a 2-10 keV peak
luminosity of Lx~3E37(D/5.7kpc)^2 erg/s. This is a factor >10 more luminous
than the two previous outbursts observed from the source, and classifies it as
a bright rather than a faint X-ray transient.
