So far I've only used it to drill 4 holes in the TV stand. Not really much use but appears to be working well and no signs of problems. I spent some time playing with this to really clean the holes thoroughly. What can I say, the battery still shows full so I don't understand how a reviewer discharged the battery in 13 holes. Possibly a bad battery. Personally, I don't think battery life is an issue here. This drill bit is pretty cheap, I bought a 53 piece set (drill plus bits) for $75. I can't imagine it being cheaper and the quality seems there so it's a great deal. If you need more battery life, just buy another battery at this price. Although this is an early review I will update reviews if anything changes.