Quote:
Originally Posted by minaret
I like the ability to plug the folding solar panel into the power pack, as a method of charging tablets or laptops for navigation completely separate from ships power, even if traveling inland or in a country with different electrics.
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I definitely see the advantage of such packs for traveling, but if I'm on a car or
boat there's already a source of inexpensive DC power, accessible with a $6 car-USB adaptor.
Also, the portable lithium packs are relatively complex, with charge and voltage regulators that can and do fail.
I do like redundancy, though. For the cost of some of those packs, you could buy a higher-capacity 12v gel-cell or small deep-cycle lead-acid
battery, and charge it from a
cheap small solar panel, and from the boat's main 12v system, as desired.