Review on 🔌 OLLGEN 3M/10ft OBD II Vehicle ECU Memory Saver Cable with Alligator Clip-On 12V Car Battery Cigarette Lighter Extension Socket Power Supply by Herve Latreche

5 stars even though no memory was saved. However, the internal electronics of my car were damaged. First, a jumper cable of at least 10 feet is almost essential if you plan on using a second car as a donor. If you have 2 cars in a 2 car garage this is the perfect spot. The cable has just been routed from the target vehicle's OBD2 port to the donor vehicle's 12V (cigarette lighter) plug. A starter replacement has just been completed on the target vehicle, a 2000 Buick Regal (3800 engine). I was careful not to open the target vehicle's doors/trunk and trigger a button press on the key fob that could activate a light and possibly blow a fuse in the memory saver (as instructed). However, somehow while replacing the starter, the red LED on the store splash screen went out, indicating the donor power was gone. Of course the 2A fuse in the device had blown. Malfunction? no What appears to have happened is that while I was installing the new starter, one of the broken starter cables (not yet connected) touched the starter. This was enough to short the B+ side of the car to ground via the appropriate circuit in the fuse box. But first, the fuse in the storage drive's 12-volt connector blew. No damage was done. Disconnecting the positive battery cable (as well as the negative) would not prevent this phenomenon. The fuse can be accessed by unscrewing the tip of the 12V plug. This is a glass tube fuse, 2A @ 250V, typical size 1/4" x 1 1/4". I replaced it with a similar fuse rated only 1/2A at 250V. This smaller fuse seemed to work fine on my old car. I reconnected the two vehicles from the save splash screen and disconnected the target vehicle's battery. The LED stayed on. After 15 minutes the battery was reconnected and the memory switched off. Everything worked as it should; the clock showed the right time. I looked at several other options to save storage and settled on this one, mainly because of the longer cable. But now I understand that the presence of a fuse in the device is a huge plus even for a very accurate master. I also like the fact that it doesn't run on a 9V battery because it took longer than expected to work.