just start your engine without revving it and dont open electrical usage such as aircon, lights and even your radio.
have the same problem right now(from sept 4 til now), ang case ko naman, iniwan ko na naka hazard for almost 2 hrs ang auto ko kase i parked it outside our garage, then hirap na magstart nung ihahatid ko na mga tita ko, after ilang seconds, nagstart na. the next morning, wala na talaga but since under warranty pa bat ko (motolite excel 1sm, i think comes with 2 yrs warranty, its been with me for 1 1/2 yrs) di ko muna ginalaw at dinala ko agad sa shop where mom bought it. di ko pa ule naasikaso kase ala pa time. spare bat lang gamit ko now,(motolite gold 2sm) ok naman.
and it seems leaving my car with hazard lights on for almost 2 hrs cannot be the only reason why my battery is drained, i maybe dealing with defective battery, because my alternator is still in great shape, still charging in full capacity. if its my alternator then i should drain my spare bat as well. anyways, if i can score a new battery under my previous battery's warranty, it would be a great help. nakatipid pa ko. kahit papano nasulit ko yung life ng previous battery ko and gaining a new one for free

sana nga
btt, padiagnose mo na lang bro alternator, wirings and battery mo. buy a reliable battery if you need to replace it and make sure you keep your warranty card, ito ang malaking pagkakamali ko, nawawala warranty card ko ehehehe