Going on vaca for three weeks, is there a chance the battery will die while I'm gone? Should I pop the hood and just disconnect it? I'd appreciate any advice. Thanks!

 

1) Yes
2) Yes....pop the hood but don't open it...This is in case the battery is dead when you get back
3) no need to disconnect the battery


Advice...get a trickle charger like the battery tender

 

Yeah good chance it'll be dead. Even when off, and with a huge battery, our cars have a lot of parasitic power drains. Buy a trickle charger for $30. It's a lot healthier than letting the battery drain dead.

 

I "store" mine for three weeks most of the time

Just get a battery tender and you will have no problems. I always pull the C4 fuse and crank it for a while to get the oil circulated before I start it.

 

I regularly have to leave my 996T parked for weeks or even a few months at a time when I travel, and the other posts about parasitic drains are correct. After three weeks it will likely be OK, but if you are going to make a habit of this get a GOOD maintenance charger.

Many cheap ones just sit there constantly trickle charging the battery and this is a recipe for a weak battery. If you spend a few bucks more for a properly designed battery maintenance charger, such as the "Battery Tender" brand, they will allow voltage to float rather than continuously charging, and will occasionally send relatively high current pulses into the battery to break up sulfation crystals, which is good if you've ever deeply discharged the battery. I use these for my motorcycles and my cars and if you have multiple vehicles you can buy larger ones that will maintain multiple batteries at once.

 

Great thanks for the advice. I just picked up a maintenance charger with float capability.

 

Quick question, I picked up the charger shown below. It can be connected to both the battery and lighter. Is it safe to connect to the lighter? Also, I'm thinking about leaving the hood popped as mentioned above, just in case the battery does go dead. Will the security arm properly like this and will this lead to additional drain? Thanks!