Compact jump pack needed.

I have the older JNC jump-pack with SLA battery. Lasted many years and just got a new battery off Amazon. But if it's in your trunk and it's 0F outside and your car battery is weak because it's 0F outside then jump-pack will probably not help.
 
I have the older JNC jump-pack with SLA battery. Lasted many years and just got a new battery off Amazon. But if it's in your trunk and it's 0F outside and your car battery is weak because it's 0F outside then jump-pack will probably not help.
I have never run into the 0F scenario, but I would think heating the pack with body heat or bringing it inside for a few minutes would solve this. If you are stuck, you have nothing to lose.
 
I have never run into the 0F scenario, but I would think heating the pack with body heat or bringing it inside for a few minutes would solve this. If you are stuck, you have nothing to lose.
battery is basically an insulated block of ice, takes quite abit of warming. ie 4+ hours
 
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