Question 1

Does this product perform both functions meaning charging the battery when needed and also as a jump starte

Accepted Answer

This is a 12V battery about 1/3 the size of most car batteries in an easy-to-carry case. When you first connect it up via the jumper cables, a fair amount of power will be "shared" between batteries (which I think of like having 2 buckets of water where you connect them and the water level balances out depending on how much each had and the sizes). Although that can provide a fair "charge" pretty fast (which may be enough to get a car started), it is very limited and will never "recharge" the other battery 100%.  If you have this connected to another battery and plug in its AC charger, power will go to both batteries, but the chargers in these only put out 0.5 amps where it can take 24 hours just to charge itself if heavily drained so it can take several days to charge itself and a drained car battery connected up together. So that's probably why most manuals say "disconnect everything while charging" discouraging doing that, but it can work (if you don't mind the time it takes). Otherwise if you want to be able to charge a car battery in less than a day, you'll want a 5-10 amp car charger.

Question 2

Is the internal battery replaceable?

Accepted Answer

Yes.  The replacement JNC105 battery capacity is listed as 18 Ah (Ampere-hours).  Doesn't sound like much compared to a car battery, but I talked to a AAA guy who said he starts cars all week and only recharges on the weekend.  Based on my experience with two of the JNCAIRs, I believe him.

Question 3

Has anyone tried to charge this by leaving the AC cord plugged into a 400 Watt power inverter in your car?

Accepted Answer

I don't own the JNC Air unit yet, but I plan to purchase it. I believe that the following should work:The Cobra CPI 480 inverter (which I do own) can be plugged into a car cigarette lighter plug (or this unit's 12V socket) for loads up to 150 watts or it can be connected directly to a car battery with alligator clips for loads up to 400 watts (for 60 minutes at a time followed by a 15 minute cool down). Alternately, I assume that the Cobra alligator clips could be connected to the hot alligator clips on this unit for loads somewhere between 150 and 400 watts (as if it were a car battery). The Cobra (and most other small inverters) uses a modified sine wave and warns that it may damage sensitive electronic equipment. From the Cobra manual: "If the label on the AC adaptor or charger states that it produces a low voltage AC or DC output (less than 30 volts), the inverter will have no problem powering the adapter safely."I believe that the JNC Air and Cobra CPI 480 make a good pair for camping. You can connect the Cobra to the JNC Air 12V socket or connect to the alligator clips to power 120V items from the JNC Air battery, and when the JNC Air battery runs down, you can plug the Cobra into the 12V socket of your car and use it to recharge the JNC Air via its 120V input, thus taking advantage of the JNC Air's float charger and not risking an overcharge.The only problem I see with this strategy is that I don't know whether or not the JNC Air has a deep cycle battery. If it doesn't, then wearing it down like this might hurt the battery. At least the battery can be easily replaced if it does fail.

Question 4

Mine came with a broken gauge.  Anyone know of an inflator + gauge that will work with it?

Accepted Answer

No, sorry; however, if it came with a broken gauge I'm sure you can contact amazon and you can return it for a different one.

Brand	Clore Automotive
Product Dimensions	6"D x 13.5"W x 15"H
Item Weight	28.5 Pounds
Amperage	1700 Amps
Peak Output Current	1700 Amps
Specification Met	reach
Manufacturer	Clore Automotive
UPC	010271019908
Global Trade Identification Number	00010271019908
Model	JNCAIR
Item Weight	28.5 pounds
Item model number	JNCAIR
Is Discontinued By Manufacturer	No
Manufacturer Part Number	JNCAIR

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Clore AutomotiveJump-N-Carry JNCAIR 1700 Peak Amp Jump Starter with Air Compressor

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