So my lady borrowed my truck for a lengthy trip to her sister's and came back a few days later. I took the truck to work the next morning and seemed like battery lost a bit of it's charge when I attempted to start it to go home. It made this loud fast clicking. My lady brought her car over and it started on the first jump. First thing I checked was lights that i may have left on but evverything was off. I drove it around town and checked battery when it was parked for a few hours. It read 12.7 volts. This morning it was at 12.3 volts and started right up.

She is leaving again for a week and taking the car so I am alone with the truck. I would like to be prepared on what to check or fix if it happens while she is gone since there is no other mode of transportation and I live a bit of a distance from town.

So what could have caused this random low battery no start?

Battery is an Interstate and has been flawless since I bought the truck in Jan of 2016. Not exactly sure how old it is but I can look it up in the maintenance docs.

It might just be the battery though but open for other possible issues.

Thanks

1999 Limited 182k miles