The car gadgets worth keeping in the trunk or the garage: portable jump starters, cordless tire inflators, dash cams, OBD2 code readers and battery maintainers. These guides match each pick to the vehicle and the job, since a jump starter sized for a compact car won't start a V8 truck in January.
Top pick: NOCO GENIUS5 Smart Battery Charger and Maintainer
Keep a stored car, motorcycle or boat ready to start. Which maintainer to buy, how many amps you need, and which handle lithium.
Read the guide →Top pick: Vantrue S1 Pro 2.7K Mini Dash Cam (Front)
Readable plates, reliable incident saves and better night footage, without a subscription. Our top front dash cams for 2026.
Read the guide →Top pick: NEXPOW NP2 3000A Jump Starter with 150 PSI Air Compressor
Jump a dead battery and inflate a flat tire from one device that fits in your glove box. The emergency kit most drivers don't know they can get for under $120.
Read the guide →Top pick: BlueDriver Bluetooth Pro OBDII Scan Tool
Know exactly what your check engine light means before you call anyone — and stop paying $100+ just for a diagnostic. We found the Bluetooth scanners that give you real answers from your phone.
Read the guide →Top pick: Fanttik X8 APEX Cordless Tire Inflator
Handle a flat or low tire anywhere without a trip to the gas station — cordless, accurate, and compact enough to keep in your glove box permanently. Our top picks for 2026.
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