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Amps, Volts, and Watts

  • Every device requires a certain amount of electrical power to optimally charge. Most manufacturers refer to this in Amps and some refer to it in Watts.

  • Most smartphones require a min. of 1 amp (5 watts) and most tablets require 2 amps (10 watts) to charge at the optimal speed.

  • Many cables and chargers look similar on the outside, but not all are created equal once you look inside.

  • Your charger and charging cable must meet the proper power requirements to efficiently charge your device. Too much in most cases doesn’t help or hurt but too little will result in slow charging or not charging at all.

  • Good quality chargers have over current and over voltage protection built-in, but some poor quality chargers don’t offer this protection and may damage your device.

  • Cables also have amperage ratings although few manufacturers publicize this.

Amps: The amount of electricity required to charge your device.
Volts: The amount of current coming out of your charger, usually 5V.
Watts: Total Amount of Energy. Amps x Volts = Watts

Charging Requirements



Power surges and disturbances can damage your device over time!

  • The chips in today's devices are more sensitive than ever to surges and power disturbances.

  • According to one of the country’s largest casualty loss insurers, over 63% of all loss-pay-outs on electronic equipment are due to power problems.

  • Ninety percent (90%) of all electrical surges or transient voltage activity is generated within homes and businesses.

  • A 17-month study done in 49 cities across the country found that an average of 128.3 disturbances happened in each monitored home/business every month.

  • Power spikes can even occur in your car upon starting or when heater or AC turns on or off.

Solar Charger and Braided Charging Chord



  • Wire thickness or wire ‘gauge’ determines the amount of power a cable can safely carry.

  • Thin cables may heat up and not charge your device properly.

  • Longer cables lose conductivity and may result in slower charging and data transfer unless the manufacturer has compensated with heavier gauge and better wire.

  • Cable components that you don’t see such as extra shielding and extended welding plates protect the connector and ensure longer cable life.


  • Treatments like braided nylon outer shielding enhance cable strength and prevent tangling.

  • Gold plating on connectors improves connectivity and enhances charging and data transfer.

  • Reinforced strain relief components relieve stress at the important connector ends of the cable.



If you are charging more than one device with a single charger, that charger should be powerful enough to charge both at the same time.

ToughTested Chargers SHOP CHARGERS

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