NOCO Boost Sport GB20 500A 12V UltraSafe Portable Lithium Car Jump Starter, and Jump Leads for up to 4.0L Petrol Engines - £75.98 @ amazon

I have this, it's amazing and got me right out of the poop quite a few times, I got it for a specific reason and to use on multiple vehicles, (during which it performed brilliantly), however there's a few things you need to weigh up before you think you might need one.
Firstly, it's about the price of a new battery, so would it be better just to buy a new battery for your vehicle?.
Secondly, if it's going to sit around for a long period of time without being used it will lose its charge, and in order for it to be effective, it needs to be fully charged, after it gets to about 75%, its less effective.
Thirdly, (as in my case), once you don't need it, it will sit in the very nice carry bag that comes with it, in a drawer or your car and the full charge it may have in it will drain.
It's a great product, that worked well for me, and was very useful for the time I needed it, and in my case it pretty much paid for itself with usefulness. And it's always there if I need it again, (providing I understand it will need fully charging before it will perform well). (edited)

Thanks, its 16% off across all models.
i'm after NOCO Boost X GBX45 1250A normal price is £134.95 now is (-16% £113.98) lowest it has been for this model (GBX45 1250A) i think was £87, setup an alert on camel camel if it gets under £100 i wll buy.
Thanks again for sharing.

I got this one recently after reading a lot of negative reviews on the NOCO versions. Comes complete with various leads and plugs to suit most other devices you would charge from a power bank so its not going to sit in a drawer unused.

mobilesolarchargers.co.uk/sho…lus

I've got the gb70 2000amp. Sat in my boot for over a year and still flick started my Merc 3.2 diesel. Even after 5 jumps it still hasn't dropped from the green max light. I'll never buy a new battery again so long term it will more than pay for itself 😄

we have similar and they are great little gadgets...but why the hell is "sport" in the product name

Regarding the no good for diesel comments, as per my post recently, this sport / base model started my 2.0L diesel no problem at all.

Lots of Sealey models available with 15% off via current ebay code. e.g. this 800A one for £70 ebay.co.uk/itm…983 (edited)