Instant car battery Chargers

Schumacher Instant Power Jump Starter Lead-Acid Battery Booster

Larger portable jump-starting devices that clamp to a car's battery have become common in the past few years. But even smaller devices, which plug into a car's power outlet, are now on the market.

These devices, which cost between $20 and $50, do not instantly start your car. They take 5 to 10 minutes to charge your battery when it's low. But our testing in four vehicles of various sizes with drained batteries showed that only two of four portable jumpers, the Black & Decker Simple Start, $40, and the Schumacher e-Charge EC-4000, $50, worked on all the vehicles. All models were fully charged before each test.

These models have lead-acid batteries that can be recharged and used again. But they must be periodically recharged even if they're not used because they lose their charge over time.

They're also larger and weigh more than 4 pounds, so you'd probably want to store them in the trunk. Five of nine Schumacher batteries started our test vehicles, but two of them required additional charging beyond the manufacturer's instructions. Four appeared to come with dead internal batteries and weren't able to start our test cars even with additional charging.

We also tested the StartMeUp2, $20, and the Porta-Jump PJR-STH, $30, which are lighter in weight and small enough to fit in most glove compartments.

The StartMeUp2 needs no maintenance. But it contains a nonrechargeable battery that is good for just one use. Both models started only one of our vehicles.

Bottom line. If you want a portable model, the Black & Decker is the only one worth a try. But be sure to keep it charged. Your best bet is to buy a set of booster cables at least 12 feet long and between 4 and 6 gauge. They don't need maintenance, and as long as you have access to a second vehicle, they can be used to jump-start any car.

GOOLOO 450A Peak Car Jump Starter (Up to 4.0L Gas or 2.5L Diesel Engine) Portable Phone Power Bank 12V Auto Battery Pack Booster Charger with LED Light and Multiple Protected Smart Clamp, Black/White
Automotive Parts and Accessories (GOOLOO)
  • 1. [GOOLOO Advantages and Promise]: GOOLOO Jump Starter GP03B is so powerful that every driver should have one, it can jump start your vehicle (up to 4L Gas or 2.5...
  • 2. [Safety]: Our products have passed international authoritative organization certification, such as FCC, CE, UN38.3, MSDS, etc. You can be at ease use. The intelligent...
  • 3. [4 in 1 Multi-Function]: Compact Jump Starter + Portable Charger + LED Flashlight + S.O.S Lighting Signal for help . It can help you In any case especially for...
  • 4. [Portable Charger]: With 1mAh capacity, charge phones, tablets, kindles and other devices at speeds of up to 2 amps
  • 5. [What You Get]: GOOLOO Jump Starter GP03B, Intelligent Jump cable, Car Charger, 3 in1 USB Cable, User Manual , our fan-favorite 18-month warranty & 30-day...
Schumacher Schumacher XP400 400 Peak Amp Instant Portable Power Source
Automotive Parts and Accessories (Schumacher)
  • On/Off switch activates the jump starting mode
  • Built-in charger for automatic charging of internal battery
  • Battery status LEDs tells when battery is charged or needs to be charged
  • Sure-Grip clamps fit both top and side-mount batteries
  • A maintenance-free, sealed lead acid battery allow for storage in any position

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