YESPER Jump Starter Portable,1500A Peak Motorcycle Jump Starter, Jump Box for Car Jumper Starter Portable, 12V Auto Booster Pack(Up to 7L Gas and 5.5L Diesel Engine) with Smart Safety Jumper Cable

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!

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!

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.

This thing works! It’s small and holds a charge for long time. I keep it under the seat of my motorcycle, just in case. So far I have only needed once, it worked like a charm and I was glad to have it. It will charge your smart phone too. Better to have one than it is to call the spouse and have to explain, you know, why you are where you are. No complaints after one year. A good investment!

I’ve had this for a few months now. Good battery life, jump starts work vans with very little usage. Four star because the pictures are deceiving. This is a similar size to all the other batteries out there. To me, it appears smaller in pics than in person.

So, just now, I couldn’t get the bike started, a 2018 HD CVO Limited. I don’t think the 1amp battery tender could keep up with the cold outside, it’s like 29° here in Ocean City MD. Anyway, this tiny little jump starter, hardly any bigger than a drink coaster, that I just bought, well, that little thing just fired up Red Rocket 78 on the first crank like nobody’s business. Jumped it right off the starter so I didn’t even have to go through the pain in the ass of getting to the battery!! I was on top of the world!!!! I haven’t had this kind of satisfaction from spending $33 since I can’t even remember when.

Excellent et pas encombrant. Au 3ème coup je démarre mon véhicule honda civic complètement déchargé

Excellent form factor to carry on my bike, or as a powerbank in my backpack, in case of emergency. PLEASE NOTE: the “Frequently Purchased Together” SAE adaptor doesn’t fit the jump-starter as the molding is of the powerbank port. I’ve had to do a return.

Great little thing

For the price, pretty hard to beat. I've jumped 1 quad, 2 bikes and a car so far no issues. Didnt find the need to buy a full size jump pack, so here we are.

This is perfect for carrying with my HD motorcycle. Security. Hopefully I can find a direct plug in connection