I’m gearing up for two back-to-back birthdays this Saturday and need a truly cordless pump that can crank out around 120 latex balloons in 20 minutes without melting down mid-party. What brands or models have been kid-party proven for speed and low noise — bonus if it’s light enough to toss in a wagon between a 10 a.m. face paint slot and an 11:30 magic show.
I’ve been using the Ryobi ONE+ P738 high‑volume inflator — an air‑mattress pump with a gym membership — and with a 4Ah battery I can hit “120 in 20” on 12" latex and it’s light enough to toss in the wagon: https://www.homedepot.com/p/RYOBI-ONE-18V-High-Volume-Power-Inflator-Tool-Only-P738/205826839. Caveat: it’s not whisper‑quiet, so run it in short bursts and bring a spare 4Ah; a silicone reducer or short 1/4" vinyl tube on the nozzle helps prevent slips and pops.
Quick note: two FlexTail Max Pump 2 Pro units on belt clips got me “120 in 20” on 12" latex last month, swapping every 5–6 minutes so they don’t heat‑throttle, and they’re noticeably quieter than jobsite blowers. If you’re already on 18V tools, @brandon_lee33’s pick is solid — use a 6Ah pack to keep output steadier; otherwise this is the lightest wagon‑friendly setup I’ve found: MAX PUMP 2 PRO - FLEXTAIL. Want me to time a single‑pump run?