auxiliary battery for new gmc pickup
has anyone added a second battery to their new gmc pickup. my truck came with a second location for a battery but the manual details are not clear on what to do about wiring in the battery so that it...
Forum Discussion
Second battery location is normally for diesels.
To use as an auxilary battery, you would need to isolate it. I donot care for diode based isolators. A more robust is using a relay such as these and wired per instructions. The coil of the relay would be wired to a location that is "hot" when the ignition switch is in the "run" position. Remember to install some type of fusing to protect the system.
Battery disconnect
To use as an auxilary battery, you would need to isolate it. I donot care for diode based isolators. A more robust is using a relay such as these and wired per instructions. The coil of the relay would be wired to a location that is "hot" when the ignition switch is in the "run" position. Remember to install some type of fusing to protect the system.
Battery disconnect
