Decided I would put in new batteries in the 3 detectors today...only the smoke detector had a battery 9v and it was installed backwards...the bottom was toward the contact end. Made me upset (nice words) when I saw it and thought what if!
So for those getting new to you units or new from factory units check your batteries, wished I had. BTW the CO and propane units did not have batteries as a backup, only run when on shore power.
2008 Dodge Ram 2500 QC CTD 4x4
2014 Cherokee 284BH
Equalizer 1,200/12,000 WDH
TST 507RV TPMS