Did a road trip yesterday to Rhode Island to pick up a boat. A buddy of mine who also owns a F150 (2019 Lariat 5.0) came along for the ride. We were talking about battery replacement and he told me to look for a second battery under the rear passenger seat. I was pretty sure I don't have a second battery but he pulled up information on Google that said what he was telling me. When we stopped for fuel, I checked under both rear seats and only found a power inverter under the passenger side rear seat.

Am I missing something?

2021 XLT w/302a and 5.0

 

If you had a PowerBoost you'd have a second battery.

 

I have 2 batteries under my rear passenger seat. 24 Tremor. No power boost. I have 2k power on board.

 

PB has an aux 12v under the rear RH seat. Non PB w/ the PPOB 2kW inverter have 2 like the tremor above wired in series to power the inverter. While the PB's aux batt is in parallel w/ the under-hood AGM, the PPOB 2.0 system is a discrete 24v system w/ a 24v alternator feeding it.

 

3 batteries in total. 1 starter, 2 for the 2K on board power.
4, if you count the one in the key fob.
5, if you count the one in my cell phone.

 

Thank you

Excellent visual. Thank you.

Perfect explanation. Much appreciated

Thank you

 

Side note: I have 2022 PB, and it came with 1 Aux battery, but I managed to get 2 Aux batteries, and had to improvise to connect them in parallel - as Ford genuine parts for dual-aux battery setup are only meant for 24V setups.So it can be done.

Been driving for a while, not a single time had any "deep sleep" issues, even though I do not drive it enough... but once in a blue moon, I do charge the batteries using NOCO 10A charger.