Clore Automotive Jump-N-Carry JNC660 1700 Peak Amp 12 Volt Jump Starter , Blue

I wanted to explain how I decided to purchase this Jump-n-Pack so my review is long Sorry!I have used many Jump Packs & all have worked OK in the past until I purchased a Larger Diesel Truck that is. This truck is a Mitsubishi FE140 with a 4Cyl Turbo Diesel engine. It has two Batteries & we have two inverters, a fridge etc that run of the truck.One day we was shopping but when we returned to the truck no start because we left lights on OOPs. Now the store we were at had a normal Name Brand Jump Pack like you see in most stores. Unfortunately it didn't work at all.So we called roadside Assistance which was to say the least an adventure.1. After over two hours of waiting & mis-communications a nice guy in a Honda that was barely running showed up. I was literally laughing as he pulled up with his little yellow light on the roof. His car was barely running. All he had was a smaller Clore Jump-n-Carry which didn't do any better than the other one we tried earlier. He gave up eventually2. Roadside Assistance Apologized & said they would send a more appropriate vendor to jump our truck.3. Next a truck larger than ours showed up so now Im thinking we are in good hands. Well he had a direct connection plug to use his truck to jump us which did work but not before trying for 30 minutes.So after all this my BoyScout side said I would never be left in this situation again so I researched many Jump Packs on the web. Finally finding the Clore JNC660 which had a few reviews about it jumping even Larger Tractors which have multiple batteries. I decided I had nothing to loose so I purchased it during a Xmas Lightning deal thinking how is this Jump Pack going to work on our truck being this inexpensive. I purchased knowing Amazon would back it up & also thinking I could use it on our boat if nothing else.I also made sure I was getting the newer model based on some reviews saying they didn't receive the updated model. At first all seemed well so I didn't get to test it out since I wasn't going to run batteries down purposely. Finally there was a day it happened the truck didn't start because something ran the batteries down. So I pulled the Jump-n-Pack out thinking I hope this works.First of all it had nice long reach cables which was awesome since all others I have owned or tried had very short cables that required holding the jump pack up over batteries. Next I hooked it up went to cab tried to start & it fired up almost instantly to my amazement.I have now had to use the Jump-n-Pack multiple times on this truck because the Fridge was running batteries down very fast due to defect. The Jump-n-Pack has not failed one time & has had to jump this truck not only once on a charge but 4 times in same day.I know it is It is just a simple Jump Pack but it does the job so well all my vehicles will have one soon.Update 08/19/2013:I have been using this for quite awhile now & it has never let me down yet. I have used it to boost my Fuso Turbo Diesel truck multiple times, Our Land Rover, Lawn Mower as well as our Boat. I will purchase a backup second one when Amazon puts it on sale again.Now there is one negative to mention. After using it quite a few times I have noticed the cables getting skinned from the way it winds them up. I have found you must take extra care to wind it up just right to prevent this from happening.Update 09/12/2013Today Amazon put this on sale again so true to my word I have purchased a second one.I also wanted to add to my review I recently had to replace both batteries on my Truck because they both had dead cells. This is even more testament to this Jumper because it was still able to get my truck running even with two bad batteries that were low on water also.Update 07/16/2014I now have two of these & they are both working GREAT!Update 04/15/2016Well we lost our home to a total loss fire along with the certificates for battery replacement so not sure how long before batteries give up.So far I have used multiple JNC660 to jump my vehicles, boat, rv as well as people not prepared in parking lots. A few have been so impressed they said they would be purchasing one like mine.All I can say is all 3 are going strong and still dependable which is all that matters.

Let me begin by saying that I’ve only used my JNC660 once to jump start a V6 engine. It worked perfectly without a hitch. I purchased the JNC660 to replace the Schumacher Instant Power Plus (IPP) unit I’ve used since 2008. The IPP really served me well over the years; however, I had to upgrade after replacing the battery three times due to an apparent problem with the over-charge monitoring circuitry. After doing much research, I chose to go with a JNC660 even though it does not have some features I found useful on the IPP unit. The first positives I find in the 660 is that it is well built and very compact—it weighs a bit less than my old unit. Next, it is very simple to use with basic operational controls. The most significant feature I find with the 660 is its automatic charging system. This feature was a real deal breaker for some other brands of jump starters I evaluated during my research. My experience with replacing the IPP batteries made me realize how precious and important an automatic charging system really is. Another key feature I really like is that the 660’s battery can be replaced by the user. The Clore user manual even provides instructions on how to perform the replacement—very nice deal. Some of the units I looked at while researching did not support or provide any guidance on battery replacement. As with my old unit, I had to figure out how to change the battery—and this was no problem for me, as I am mechanically inclined. And finally, the user instruction manual is top-shelf—well written. Now for the things about the 660 that MAY concern some people who use jump starters as a power source. First, consider that the 660’s power rating is on the low side. Thus, it has wattage limitations as far as connecting power inverters to use devices that require AC voltage. The instruction manual indicates that power inverter capacity should not exceed 400Ws (350Ws recommended). I was curious about using my older model 400W (Continous) 800W (Peak) inverter with the 660 so I contacted Clore Tech Support. The Tech Support person confirmed that I should not use it—that I must use one with no more than a 400W Peak rating. Lastly, there is no ON/OFF switch. I personally don’t see the need for one given that it’s primary purpose is for jumpstarting anyway. All in all, the JNC660 is a solid product that deserves serious consideration. It does not have a lot of bells and whistles but I accept ihat it’s simplicity serves the primary purpose. I can’t much about the reliability but I should not have to worry about over-charging or frying any more batteries. I can only hope that the JNC 660 serves me well like my old jump starter.