Boost X GB155: 4250A UltraSafe Jump Starter Power Pack – 12V Car Battery Booster, Portable Power Bank & Jump Leads - For 10.0L Petrol and 8.0L Diesel Engines

Bought for work to use over winter for our fleet of vans. Definitely good quality and starts the batteries with no worries. Easy and quick to charge up. Wouldn’t be without it

Already saved my bacon many times. Great quality and powerful.

Hefty product got this just in case as my old trusty diesel suv plays up on freezing winter days. It’s packaged well but but could have done with a sturdy plastics carry case. Apart from the unit it self, skinny and flimsy usb c charge cable and a thinker 12v/cig lighter cable and a multi lingo safety book there is no instructions manual. One aspect that irks me is the usb c in and out ports right next to each other in the cold dark day and night one could easily mix them up. Light is nice and bright and one of the modes seems to emit and sos signal which is handy just in case of an emergency Also I got this based of project farms excellent videos Update: instructions on noco site stated around an hour or so aprrox charge time when first charged. My 100w PD charger charged it to a slid green 100% charge in 10 minutes. Not bad

Not as good as stated in reviews, I believe the reviewers are only using it for one-time aweek or a month at most or for emergencies .Battery died within three weeks! I have years of experience with different products like CAT, Stanley and Clarke and based on the review and working in daily with many cars as most of them either run out of battery or something with holding the current decided to go ahead and buy NOCO GBX155. Unfortunately, it’s not 3 weeks completed this product doesn’t hold the charge or battery. It keeps on for about 5 mins then goes completely off as you see in the second picture. I bought an external fast charger as advised with 120W however, at first worked perfectly then using it for constant not topically right. It’s not for everyday usage just for emergency, even thought if it’s for emergency purposes how can broke within few weeks of work. This product is not reliable...well, maybe for at least one jump. Totally overpriced and useless. In all cases, the device was fully charged. I would like to give back the booster and my money back..

Brilliant bit of kit. Starts our large tractors with ease.

Superb jumppack. Did not struggle with a 5.0L diesel engine. I only gave four stars because the supplied cable has USB A to C cable. I think an A to C adaptor should have been included. But this is not reflective of the unit's performance.

Amazing power for its size can’t believe what it can start Wish I got one sooner

I've had this for a few years now & its brilliant hasn’t let me down yet,used it loadsof times & still going strong, I bought the faster charger much better