Everstart J45tke 1200 peak amp jump starter/compressor...where can I find instructions online to download? Mine came without instructions or manual.

Reviews showing use

https://www.google.com/search?q=EverStart+750

Manual at the bottom of the page

https://www.walmart.com/ip/EVERSTART-750-Amp-Jump-Starter-w-120-PSI-Digital-Compressor-Heavy-Duty-Clamps-w-Reverse-Polarity-Alarm/948525577

Manual link

https://content.syndigo.com/asset/9dd543bf-8514-4e9a-8a9b-e5ff8d8787a7/original.pdf

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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).

Jump starters are usually imported generic items label engineered without much of a spare parts service. You might be lucky if you approach the supplier but most likely not.

You could try repairing the compressor. They are quite simple and might even only need a squirt of WD-40 to make the valves work again and the piston to start pumping.
In spite of there being no lubrication system they usually give good service and would need extensive use before they wear out. Compressing humid air would create a little water which would provide a little lubrication...

open it and replace battery

What the ****** fu***ng hell is wrong with you people always asking for is a manual and you give him all these fu****g spam links

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

https://dogdowndingper.files.wordpress.com/2015/07/everstart-jump-starter-300-amp-instructions.pdf

try this website and keep it as a favorite on you webpage if you have google
they have tens of thousands of free owners manual including for vehicles

http://www.manualnguide.com/