Jump starter pack charger

[Hunterlees]

This is the li-ion jump starter I have, bought it based on online reviews and tests and find it really does the job including starting a large diesel dump truck recently.

Audew 2000A Peak 20000mAh Car Jump Starter for All Gas Engines or Up To 8.5L Diesel Engines with LCD Power Display

 

[JumbleDuck]

This would have been a better link. Single 1800RC (Rapid Charge) Pack

I think if you are going for that type but don't spend so much money you might be in false economy territory with short lived lead acid starters like those from halfords. In which case better to go for a li-ion starter, maybe a hefty one if using for a large diesel engine. My Li-ion one seems fine for the car. Very fast discharge li-ion wasn't around when I bought my Snap-on one (second hand) but I just looked what snap on sell now and its still lead acid starters but also sell a "portable" li-ion pack. I wonder if they are only still selling lead acid as mechanics trust the technology but in fact as long as its kept charged a li-ion is really just as good. Why wouldn't it be?

You still get much more storage for the money with lead-acid. As I wrote above, lithium is fine if you just need to spin a flat-batteried car into life, but really isn't up to any sort of serious cranking. These nice packs are 22Ah, mine will be 17Ah and the lithium one recommended up thread is 2Ah.