Update: Deal over.

As a Prime Day deal, Amazon has highly rated NOCO battery chargers on sale!

Click here for this deal.

Sample deals:

• NOCO Boost HD GB150 4000 Amp 12-Volt Ultra Safe Portable Lithium Car Battery Jump Starter Pack For Up To 10-Liter Gasoline And Diesel Engines: $206.47!
• NOCO Boost Plus GB40 1000 Amp 12-Volt Ultra Safe Portable Lithium Car Battery Jump Starter Pack For Up To 6-Liter Gasoline And 3-Liter Diesel Engines: $68.95!
• NOCO Boost HD GB70 2000 Amp 12-Volt UltraSafe Portable Lithium Car Battery Jump Starter Pack For Up To 8-Liter Gasoline And 6-Liter Diesel Engines: $131.57!