Its a greatly designed product, I havent tried it out with my car yet (cause i jumped it with my friend's car instead before it arrived) but I trust it'll work when I need it to, it's a great thing to have for peace of mind on trips and just makes sense to have for daily. The size is actually partly why I bought it, cause usually these battery jumpers will only be needed in that specific instance that you need it (depends on how old and fussy your car is, but you get the point) so its good that this doubles as just another backup powerbank. The dimensions isn't much bigger than my old 10500mAh powerbank, almost the same thickness, just slightly wider and not too much taller which is understandable because remember IT CAN JUMP START YOUR CAR (and its 12000mAh). Just a no brainer to have in your daypack for emergencies, unlike other bigger car jumpers that, just admit it, you'll forget in the car (which, quick tip, don't do that, batteries and extreme temperatures dont go well together) and ends up being 0% when you need it. This one you can actually bring around for other emergency power needs. (Its a pretty good torch too). If I were to nitpick, or incase Yesper reads these, it would actually be a big brain move if it is updated to have the usb-c port as in/out and quick charge so it works even better as an emergency device powerbank that has a bonus function in JUMPSTARTING CARS. The size/dimensions of the fevice and battery capacity is already perfect. My phone is only 5000mAh so its more than enough and its a bad habit to charge your phone with powerbanks anyways, its only for emergencies when you can't find a plug anywhere or needs to get moving. And if you have a car hey good news you can turn it on with this then just charge with your car! Read more
The product works well and will easily jump my BMW R1250GS motorcycle. None of the description of the product calls out what the connector is for the jumper cables, but in the pictures on the product page there is a drawing that everyone should pay attention to. At a glance it looks like an EC5 connector that I have on other jumpboxes. But it is not. It looks like an EC8 like comes one Radio Controlled toys. The positive lead flat side is reversed from that of an EC5. The reason this is important is that on my bikes I have a pigtail that has a pretty standard SAE connector that is wired directly to the battery using 30 AWG wire for putting a charger on the bike when it is not used regularly. I have a small cable that is SAE to EC5 that allows me to connect a jumper battery directly to the battery without needing to unscrew and get to the battery terminals to jump the bike. Now it is rare that I need to jump my bike, but it has happened and in the dead of night in the dark, it is difficult to hold a light to the side of the bike to unscrew the panel that hides the battery terminals. So having the SAE to EC5 pigtail is perfect for being able to quickly attach an external battery to my bike. The Yesper product is just slightly smaller than a Pixel 6 Pro, and about 3x as thick. See images. It has a USB-C for charging and a USB-A for output so that it can be used to charge a phone. I used my jumper box for long trips to charge the communications device on my helmet. I got the Vesper because it is very small and would easily fit in my jacket pocket so that on a long ride. It is almost the same size as the jumper box that I have for my other bike that has a standard EC5 connector. I bought this Vesper for a second bike to be carried with the bike as it gets older. My other bike has a different brand that is almost exactly the same size and it has a standard EC5 connector. You can buy an EC5 to SAE connector on Amazon for about $7 and if you have wired a good pigtail to your battery with 30 AWG wire, there isn't an issue with the pigtail getting hot when trying to start. I have not found a connector that matches the Vesper that connects to a SAE nor a pigtail that I can pre-wire to the battery to connect the jumpbox without needing to remove the panel covering the battery box. The Yesper works just fine. But I think it is very relevant to highlight that this will not work with an EX5 pigtail if you are replacing another jumper box or expected to be able to wire directly to your SAE pigtail to the battery. Read more
Amazing and portable jump pack that fits neatly into my backpack I cannot count how many times this small device has turned a tow my bike home situation into a simple jump and go. Please note that they do use a proprietary connector so if you use a standard SAE type connector on your motorcycle battery for a quick jump lead you will need to chop off the end of this and replace it with an SAE connector. I did this not I have a quick connect to jump my bone your never even know it died 😂. Haven’t noticed any heat issues or anything strange. Will use this until it breaks. Starts right up when it’s plugged in! Read more
This thing is powerful and awesome. Jumps starts my Ram 5.9 ltr from a complete dead like nothing. Originally bout it for my bike, but liked it so much I'm getting another one for my vehicles and getting reed of my cables. Perfect for when your alone or up again a wall or both. I personally don't like jumping anymore with my vehicle's, and now I don't have too and can still be a good Samaritan. 🤗 Read more
Small size suggests it will be good for motorcycles but big clamps and short leads make it difficult to use. I might replace the clamps and wires to something more suitable. Read more
Have had this thing for over a year for my Motorcycle on trips. Works every time and holds a charge for a while as well. I also bring it to work with me and have jumped off a lot of peoples vehicles with no issues. It has even worked on F150, Ram 1500 and 1500 Silverado's. Definitely worth a purchase. Super light weight and will easily fit in a back pack. Read more
