The best replacement for jump starter is battery charger.

The best alternatives to jump starter are rated as following:
★★★★★  battery charger
★★  jumper cables

Your alternative for jump starter is not listed? Suggest!
Speaking about jump starter, one probably shouldn't forget about inflator.

Other search terms related to jump starter and their ratings are:
★★★★★ inflator
★ portable power
You have in mind a companion for jump starter and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of jump starter in all years. Click on graph for more.
jump starter
battery charger
jumper cables