I have powered my Pi4s and a Pi5 with a 5A buck converter and 12v Power tool batteries. I set the buck converter to 5.2v, I run it to the GPIO. I keep all wires as short as possible and if I need more length somewhere to/from the buck converter I have the longer wires on the battery side before the voltage is lowered. I use a robotics connector for my brand of power tool batteries. I use cheap Chinese knockoffs that have a high amp rating because the real ones are just too damn expensive, $100 for one 4A original battery, or $32 for 2 knockoff 8A batteries.
I don't run any kind of extra protection for the batteries, to keep the voltage from going too low. Because the Pi cuts out before the voltage gets too low on the battery. Too low and your battery won't recharge. Never happened to me on the Pi's
I have hot swapped, plugged in a official PS while changing batteries, with no problems. Not sure if it's 4 or 5 years now
This works with the official 7" screen for as much as 7 hours, (Pi4, AND13 OC to 2ghz at most,) terrific. A 7" HDMI touchscreen I bought had an audio circuit built in and that wasted power I think that used 3A and was no good, 45 minutes to an hour. That one was still okay on wall power. A couple 5" screens I bought went between working fine and iffy, it was the screens that needed some revision. They ran completely on dsi cable, whereas official screens have a USB.
I don't run any kind of extra protection for the batteries, to keep the voltage from going too low. Because the Pi cuts out before the voltage gets too low on the battery. Too low and your battery won't recharge. Never happened to me on the Pi's
I have hot swapped, plugged in a official PS while changing batteries, with no problems. Not sure if it's 4 or 5 years now
This works with the official 7" screen for as much as 7 hours, (Pi4, AND13 OC to 2ghz at most,) terrific. A 7" HDMI touchscreen I bought had an audio circuit built in and that wasted power I think that used 3A and was no good, 45 minutes to an hour. That one was still okay on wall power. A couple 5" screens I bought went between working fine and iffy, it was the screens that needed some revision. They ran completely on dsi cable, whereas official screens have a USB.
Statistics: Posted by PGTMR2 — Sun Feb 16, 2025 11:12 am