SUNPOW Lithium Jump Starter Battery Pack 2000A Peak 20000mAh (Up to All Gas and 8.5L Diesel),12V Battery Booster for Cars, Trucks, SUV, Portable Power Pack with LCD Screen & LED Light

I own two of these and they work great. I would highly recommend this product. Convenient and compact.

Love this one. I think they have done a great job on it. The most important thing about it that most dont realize is that it recharges on 5Volt. This means that you dont need to have household current, and can also be over seas much easier as well, because your USB chargers of any kind work, just need to keep your charging cable. WIsh this had more Amp hours on it as I find it a little less than would like for the size, but with the ports that are chooseable especially the Car Cigarette lighter port is super important. Wish it also had a house port on it but you can find the LOW end ones for charging anywhere, and just get the one for your Car type. (Make sure you charge the battery of your computer and not while it is ON. , it will take a LOT of energy charging the battery and running the computer).Back to the 5 volt recharge. Often most recharge on 12 volts which means they have a 13.5 volt battery top off. So when you charge them you can NEVER get them to full charge.... Irritating. and they dont put in Step up transformers. This either runs off 5 Volt batteries that charge and then modulate the output or has step up transformers of somekind to rectify the 12 volts really means 13.5 volts. (voltage is Full to Empty). So recharging and keeping it charged in a car actually works and now the Jumpstarter is not at 80% and can jump your car 5 times its at 100% with full juice full power going through and the full amount of times it can do it. GREAT JOB on this... I have had about 10 different ones of these for all different reasons, and this is a first. Of anything this is the reason to do it. Secondly on this. MOST of those solar chargers recharge at again 10-11-12-13 volts changing all the time as the sun gets brighter or less, or at 12 volts regulated and cannot get over that hump, and thus your solar or TEG or any other off grid charger you have will dial down to 5 Volts and recharge this. Then you can use your phone while hiking, Electric Lighter (super impotrant), the Hot water heaters that plug in a lighter to boil water or have hot cocoa.Again most of thes are GREAT for their reasons but for Emergencies and Camping, this is the one that I have found is the best.

I bought this in mid 2021 and charged it up. It said to recharge it every 3 months, but I forgot, and in late 2022 I saw it in the back of my car and decided to check the charge. It was at 100% !! After sitting for more than a year. So I just put it away again and didn’t think about it until today, in April 2024. My car wouldn’t start today so I got this out, and it was at 89% !! After not being recharged for almost 3 years! It jump started my car immediately, without using hardly any of its charge. I can’t promise your experience will be just like mine of course, but for what it’s worth, that’s been my experience. I am extremely pleased. Great product. Well made.

this has been a lifesaver more times than I can count. It’s a multipurpose charger, useful for a car battery, or a iPhone or android. It has flashlight function and a broiler oven attached to it (OK I lied about that last part).Seriously though, it’s a must have to have in your car to keep your phones charged out in your car charged.

My son bought a 2011 Subaru Outback for his 1st car. It seems to have a parasitic power drain that quickly kills the battery. I wanted an easy way to jump the car any time and any where. The Sunpow JS02 has been great!It comes in a nice carrying case that holds the jump pack and all the accessories. I am not happy with the car having this known Subaru issue but this device gives me piece of mind that he won't be standard somewhere! We've used the jump pack about a dozen times and it's worked every time. I want to make sure it is always charged so we try to keep it at 100%. For that reason, I don't know how long it holds a charge but living in New England where the winters are cold, batteries have a hard time any way.My really only complaints are sometimes when we take it out of the case and turn it on, we get 2 different readings. It will show 100% for a few seconds then a 2nd number shows like 18%. This is without being connected to anything. Putting it on the car and connecting it to the battery, the car starts right up. Power will read about 96-98% after the jump but we still see that 2nd readout sometimes. I can't find any information anywhere about that 2nd reading. So idk! And that the cables connecting the jump pack and car are a little short - a few more inches of length would be nice.Otherwise, this device has been great. I would strongly consider buying again. 4- stars only because of that other reading.

Never seen one of my motorcycles weaken battery start up so fast. With charger outlets and flashlight, this is a great purchase to start any vehicle you have. Very powerful.