There's nothing fancy about this cord, it's literally just 4 feet of wire with male plugs on each end. The solder connection look good inside, but the housing almost comes apart at the nose when not in a socket. When I got it the cost was 1/2 as much as another, so if you want something cheap and simple this seems better (and it has no LEDs or such that give even a tiny drain if you want to leave it between 2 batteries or such). But it also came with no instructions, so although you may think "You just plug it in don't you?", there are some things you need to think about and beware of that I'll pass along.First, any power cord with male plugs on both ends has the possibility of one end being plugged into a source (like your car) and the other touching something metal (like a body part of the car) creating a "short circuit" which can start an electrical fire (unless a fuse saves you). So although the 12V won't zap you if you touch the bare end, just remember if you pull the plug on one end, always instantly pull the plug on the other end (don't ever leave just one end connected).
I thought they may have a resistor or such inside this to limit current flow thru it as power goes from your car to a "jump start" battery (which is it's advertized purpose), but it doesn't. Although some may think "That's good so you get the full car power faster to recharge it, right?", the truth is this also can create an electrical fire or blow the car fuse from the high power draw and small wires in this. For charging a battery with nothing drawing power that isn't very likely, but if it's heavily drained or someone used this to "jumpstart" from car-to-car that can become a problem. I did try this to recharge a "jump start" battery in my car after I'd drained it at least 50% and after 10+ minutes of recharging I pulled the plug finding the positive terminal was pretty warm. Nothing came apart or such, but any wires or connections getting warm isn't a good sign.
The one other concern I'll pass along is from seeing several places say "You shouldn't charge a sealed AGM or gel battery to more than 14V" (which is what's in most "jump-start" packages), yet I know that cars alternators usually bring the battery to ~14.75V. So charging in a car with this has the potential to "over-charge" it some, but at the same time it's best for the battery to recharge it ASAP after using it (not leaving it drained). So I'd still use it, but probably only for 15-30 minutes depending on how drained it is and battery size. (I also find it interesting that while 1V overcharge is a big deal to some, the trickle-chargers provided by OEMs of most "Jump-start" batteries have the potential to go to 17V+ if left on too long. So which is more dangerous, a higher current charge limited to 1V "overcharge" for a short time in the car or a slow current over a much longer time that can go to 3-4V over?)
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I have a solar power charger that has a 12v out and I needed to pair it with a battery pack that accepts a 12v male connection. This product serves the purpose. Couldn't find it in Canada.Cord length, nice and long, about 6ft if I remember correctly. Price was very reasonable. Good buy!
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