Amazon with WorldUS has the Tacklife M1 12V 150PSI Digital Tire Inflator Air Compressor Pump with Precision Gauge, 4 Nozzle Adaptors and Extra Fuse for $38 – 10% off coupon (check “Apply coupon” box) – $11 off with code 5FIV9GKP [Exp 3/19] = $23 with free shipping on $25+ or with Prime.
Amazon has the Gooloo 6V 12V Car Smart Battery Charger and Maintainer for a low $24.04 Free Shipping after Clipping 20% Coupon and using Coupon Code: “UHG7YBTH” (Exp Soon). This is originally $36.99, so you save 35% off list price.