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Schumacher Red Fuel Jump Starter SL161 8000mah
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$64.99
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This thing has saved my butt so many times. Not everyone wants to pull over to give you a jump start but this is my 2nd RedFuel SL161 and it works perfect every time. I actually used it to randomly help someone out in a parkinglot just last night. They were awestruck by how quick and easy and helpful it was. They both took pictures of the box because they both wanted to order them immidiately
Verified purchase: Yes | Condition: New
This product does what it says in the sense of being such a small device and being able to jump start certain vehicle batteries. But when charging a mobile device you can only get 1 full charge ONLY. My first time using it it jumped from being 100% fully charged to 19% in 10 minutes to being dead. I’m not sure if mine is faulty or not. Several people that I know have said the same thing. For the price we should definitely being to charge a mobile device more than once offof a fully charged Red Fuel. I’m a tech guy with influence and I will not recommend this to anyone. Sorry, good marketing but the device needs major improvement. I’m not happy at all.
Verified purchase: Yes | Condition: New
1) First, Schumacker is misleading consumers by claiming internal lithium battery has 8000mAhr capacity. Actual capacity is closer to 4,500 mAHr. We are in a bad habit of lying both at the corporate and individual level in this country - stop it! Let’s restore integrity 2) LiPO batteries loose much of their capacity in cold weather, so if your SL65 is less than say 40• warm it up under your jacket for say 10 minutes before use if your car starter doesn’t even manage to rotate engine. 3) How to revive a dead Schumacher Redfuel SL65 Jump Starter or other similar devices Symptoms: my friend’s unit would show 100% charge when connected to wall charger. When disconnected from wall charger, sliding power switch on and pressing power button next to display - nothing happens. This is what I recommend and why: I checked the voltage at the output terminals using a digital volt meter (where you connect the jumper cable attachment) and got a reading of 0.7V. What happened is my friend Roger probably drained the unit below the minimum 40% charge level recommended by manufacturer or didn’t charge it for an extended period of time and the internal lithium battery (3 cells connected in series) drained below the voltage threshold the charging circuit needs to detect in order to initiate charging process when connected to wall charger. What to do: 1) You will need a 12VDC power source like a car battery, battery charger or probably even a rectangular 9V radio battery. The idea is to connect this power source directly to the unit’s jump start output connector (observing correct polarity - very important! You can verify polarity by holding jumper cable that plugs into unit in correct orientation and verifying the red cable is positive terminal) 2) get 2 insulated wires at least 10” long - doesn’t matter what gage as we will be running very little current. The idea is to connect your ~12V power source in parallel (+ to + and - to -) to the jump start output terminals of the jump starter unit. If you’re using a household 9V square battery, I recommend you leave it connected for say 20 minutes, the other 2 example sources probably only need to be connected 4 seconds. After this disconnect the wires. 3) With the SL65 switch set to “on” press the power test button next to the display - is it shows 1% with the “1” flashing you have succeeded, if not return to step 2 4) Connect the SL65 to the wall charger and allow unit to fully charge. This will take 4-8 hours depending on the device you have Because of the design of the internal charging circuit of these units, if the internal batteries are allowed to fully discharge, if the charging circuit sees < 1Volt, it assumes the battery is bad and will not commence charging process. How many of these amazing electronic jump starters are ending in land fills because of this simple mistake or neglect on the part of consumers. The manufacturer also bears some responsibility - a very simple design modification in the microprocessor would correct this vulnerability but then they wouldn’t sell as much product. Read full review
Verified purchase: No
I've owned lithium battery jump packs before and it was pretty handy when a small car battery needed a jump but they didn't have the punch to jump my old dodge diesel when my battery gave out even at 100% charge. They weren't made by Schumacher though and I know I like the reliable battery chargers they make. This one is advertised as good for use on motorcycles and small v6 vehicles so I wasn't expecting it to be as powerful as it is. I tried this out as soon as it showed up, took about 45minutes to charge to 100% from 58% and the battery in my truck was stone dead (again) when I connected the Red Fuel, it did have a little struggle with a couple of cranks to kick over but this little battery jumper pack actually started my giant 5.9L Cummins. I am very pleased with the output of this little guy and I'm happy I bought one for myself and as Christmas gifts for my family. Schumacher is a good brand and I will definitely be spreading the word about this awesome battery pack, thank you.Read full review
Verified purchase: Yes | Condition: New
Have not used on any cars yet but it makes cranking my 19hp lawn mower with a 5 year old dead battery a snap. No more pushing it out of the shed to jump it off. This thing is awesome. Power my phones and lap top too. No disappointments here. It stays in my saddle bag of my bike. Takes up very little space. A great gift or tool for the person that's hard to buy for. Gonna buy another for the wife to keep with her. Holds a charge for a year claims the manfacturer. One of the best and most useful tools I have ever purchased.
Verified purchase: Yes | Condition: New
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