Baseus has dropped the regular price of these jump starters by 10% that then stacks with the current eBay code, providing a nice reduction from the regular $129.99 price tag.
All the specs of the unit are in the eBay listing. Notably, it has a 1000A starting current and peak current of 2000A, which would easily cater for even a large SUV - great in an emergency if you're stuck out in the bush. They also claim it'll hold a charge for 2 years, so if like me you have it buried in your spare wheel well, you'll have a fair chance of having a charge when you need it at a future date.
Thanks for the idea of burying it in the wheel well, I've always had issues with mine taking up my entire glove box!