Quick Answer
Use a spare battery, a solar-powered battery pack, or a hand-crank charger to keep your GPS device powered for extended periods.
Choosing the Right Spare Battery
When selecting a spare battery, consider the power requirements of your GPS device. Most modern handheld GPS units use 2x AA or 4x AA batteries, and require 3-5 volts to operate. Choose a spare battery with the same voltage and capacity rating as the ones originally installed in your GPS device. For example, a pair of Energizer Ultimate Lithium AA batteries can provide up to 10 years of storage life and last up to 3 times longer than standard alkaline AA batteries.
Using a Solar-Powered Battery Pack
A solar-powered battery pack is a great option for recharging your GPS device in the field. Look for a pack with a high-capacity battery (at least 5,000 mAh) and a high-efficiency solar panel (at least 10 watts). The pack should also have a USB output, allowing you to charge your GPS device directly. When using a solar-powered battery pack, make sure to follow the manufacturer’s instructions for charging and storing the pack.
Hand-Crank Charging Methods
In some situations, a hand-crank charger may be the best option for recharging your GPS device. A hand-crank charger works by converting the mechanical energy of a hand-crank into electrical energy, which is then used to charge your GPS device. Look for a charger with a high-capacity battery (at least 5,000 mAh) and a durable hand-crank mechanism. When using a hand-crank charger, make sure to follow the manufacturer’s instructions for charging and storing the charger. It’s also essential to note that hand-crank charging may take longer than other methods, so plan accordingly.
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