20 Most Recent STA-J5C09 500 Amp Jump Starter w/ 120V AC Charger, 120 PSI Compressor, 270 Degree Pivoting LED Emergency Light, 1000 Peak Battery Amps & Heavy Duty Metal Clamps Questions & Answers

The Air Comprressor has rubber seals inside that do eventually go bad. Since the pump seal is broken or weakened the air cannot be compressed

STA-J5C09 500... | Answered on Jan 23, 2016

Depends how long the unit has been just 'sitting' without being used! My neighbour had a similar problem after leaving his for over a year unused. The battery that's in it simply died. In order to maintain these units in good working order they need to be used regularly - that is charged and discharged. The unit may need a new battery I'm afraid!

STA-J5C09 500... | Answered on Aug 12, 2014

for heavy machinery cars etc. luckily there are many websites
that can help you repair
for eg site like reliable-store is very active in this.. instant help, emails and all that's fantastic
tried and tested !

Stanley Vehicle... | Answered on Jan 24, 2019

It is not designed for this style application. You can jump start the car with it and use the car to charge the battery. Clean battery posts first and add distilled water to battery if needed.

Stanley Vehicle... | Answered on Mar 07, 2018

Not sure what the question is. These units have a sealed gel cell battery that can be replaced (Have done that) and they do fail after several years. Is yours charged? https://www.stanleytools.com/products/automotive-tools/other-tools/power-station/500-instant-1000-peak-amp-jump-starter-with-compressor/j5c09 BE sure last connection when jumping is negative and body to body - away from battery

Stanley Vehicle... | Answered on Feb 28, 2018

You need to open the casing to access th inside components.
Remove the screws on the backside, cut any stickers or labels that cover the seam.
You will see a 12v voltage converter mounted to the back cover.
Test it to ensure it is working properly. Is it putting out the proper voltage? If it is then check the battery to see if it has proper voltage or can hold a charge. These are the two most common problems and can be easily replaced if defective. The circuit board is less common.

Stanley Vehicle... | Answered on Sep 14, 2017

You will likely have to open up the case to look inside.
The main components will be a circuit board, a 12v power supply, a 12v air pump and a 12v rechargeable battery. It sounds like a loose connection on the air compressor pump. When you turn it on it normally vibrates and is loud. This may be enough to shake loose a wire connection. If so it should be an easy fix to crimp or solder.

Stanley Vehicle... | Answered on Sep 14, 2017

Remove all the recessed screws and it pulls apart.

Stanley Vehicle... | Answered on Jul 24, 2017

Jump Packs are a great way to boost a discharged battery that can't get the vehicle started and, in many cases, can be safer and easier to use than jumper cables. BUT they do need to be charged up at regular intervals - about once a month or so to be sure they work as expected because they can self-discharge over time. My guest, Brian Butler from Schumacher Electric, explains how and why. While I was there, he also showed me some of the different types of jump packs the company produces. http://www.batterychargers.com

Vehicle Parts &... | Answered on Nov 25, 2020

as with any detector when it goes off they already gotcha

Vehicle Parts &... | Answered on Nov 23, 2020

It is best to find an experienced veteran to replace the Mercedes alternator

Vehicle Parts &... | Answered on Oct 16, 2020

I don't have the same jump box but I have ran into the same problem is either gets charged in the garage or in the house that's best result for me anyway

Vehicle Parts &... | Answered on Oct 11, 2020

Jump starters with a lead acid battery are very similar to each other and many are generic label engineered imported items. The manual mostly covers the safe useage and operating procedures that are mostly intuitive - few people that know nothing about inflating tyres or jump starting a dead vehicle would own a jump starter...

Jump starters are mostly so similar the instruction booklet for one will serve for many others. There is really only a few things to remember - a battery can explode so if sparks have to be made make sure they are nowhere near the (vehicle) battery, observe the correct polarity (failure to do so can be very expensive) and top up charge your jump starter after each use and monthly regardless (leaving it in a discharged or semi-discharged state will quickly render it useless).

Vehicle Parts &... | Answered on Oct 10, 2020

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