Originally Posted by wwu123

I've been having low battery charge problems on and off since last December on my 2007 X5 3.0i, which was about 3 years after I had the battery replaced at my BMW dealer. I didn't think it could be a bad battery after only three years, esp being the BMW OEM battery. But last week I was having the water pump replaced at an independent shop, they also did some other checkout of the car, and said that no battery had been registered to the car since it was originally sold in 2007. In other words, the dealer did not do ANY registration or coding when they replaced the battery in 2012, but still charged me $600!

So rather than go to the dealer again, I ordered the Interstate MT5-49H8 battery from a local shop and installed it this weekend. Took all of 10 minutes, if that. I haven't registered it yet though. Should I really register it, given that the car thinks the original battery is still there, going 9 years old?

Also I have a USB K-DCAN cable I ordered off Amazon, it came with a disc that appears to have INPA software, but I'm not sure it is installing correctly on my Windows 10 laptop. I was wondering, the Carly app looks more user-friendly and claims it can do registration. Can the Carly app for Android work with the USB cable if I connect the cable to my Android phone with a USB OTG adapter? Or could the Carly app work with a Bluetooth OBDII adapter (I use one with Torque app)? Or does Carly ONLY work with their Bluetooth dongle or USB cable that they sell?