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How long should a 12v 17amp Powertank last?
Hi everyone,
for those that have been using portable power units for a while and are in the know, how long should a Celestron Powertank 17amp 12v unit last when using a laptop computer drawing 15 volts and 5 amps?
I am getting 3 hrs using my laptop computer. Does this sound about right?
If I was to upgrade to a 34amp 12 volt unit, does this mean I would get 6 hrs?
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