A situation I hadn't considered until now...

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tj99959

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  • Aug 13, 2011
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    utah
    What I do:
    P1000809_zps522418e3.jpg

    And that will last a week :lol:
     

    Jc61990

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    Sep 16, 2013
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    id recommend a mech or an APV and just a bunch of spare batteries, i have 12 batteries, 8 18650, 2 490 and 2 350's, i usually bring 2 of what ever i have in my mod that day with me, if i use a 650, i rarely ever have to change my battery that day. 350's i will have to change at least once, 490s will last til i get home.
     
    I'm assuming your rig is 510? Why not just plug your USB charging cable into a USB port in your car, or into a USB > 12v adapter in the car? I keep a second 18650 battery charged for my SVD and for that, I can plug the charger for it into an AC > DC adapter in the car too. A 18650 battery usually runs my SVD for two days unless I'm agitated and start chain vaping it. I also keep two (minimum) fully charged 1300mAh VV batteries with me at all times, charging them at home or in the car as needed.
     

    revco

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    Jan 24, 2014
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    I did a fair bit of research into this, but it was for a different application. The principles are the same, though.

    Solar power is going to be limited, depending on your particular situation. Based on my research, most of the inexpensive solar units are going to take quite a bit of time to charge a battery...it's not going to be your typical 3-4 hour charge, especially if you're doing more than one. Plus, you have to erect a solar array in the middle of a music festival...good way to get ripped off, IMO.

    I did some testing with an external charging battery and it's the way to go for a shorter trip like that. I was able to get 8+ full charges on Kanger VV 1100mAh batteries from an Anker 15kmAh E5 battery. It small, fairly lightweight and discreet...I'd probably suggest two for redundancy and length of charge. You get a fair bit of loss in the transfer, 50-65% efficiency is about what you can expect on a decent quality unit. Just another FYI, it's probably not practical to recharge these batteries in the field...mine takes over 24 hours to regain all it's power. Here's my test results:

    AnkerStats_KangerVV-1100mAh.JPG


    Vehicle charging may or may not be an option for you, but if you're invested into 18xxx series batteries, NiteCore makes a 4-port charging bank with a common 12VDC automotive plug. Just remember, it can run your vehicle's battery down to charge many hours in a row, so it may be necessary to run your vehicle for some of the time.

    Good luck!
     
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