Holds a charger for extended period in cold weather.

No cold weather trials yet so check back later

I've a got a grain truck with a Cat diesel in it with four batteries that is hard to crank with old batteries in cold weather

It was that I relied on it to bail me out if ever in the cold weather I had a dead battery.

OVERALL I would highly recommend the noco boost for anyone that lives in cold weather like Alaska

This product does not work in cold weather when a boost is most needed.

Under normal circumstances (unused for 2 days, cold weather, heavyweight oil) it would have started, but with some difficulty/prolonged cranking

Since I normally have it parked inside, I'm running it on 15W-40, even though it's winter and this weight oil isn't the best in cold weather

I called the manufacturer and there was no compassion charger works well the quality on the unit if you're willing to spend that money for something that just breaks because of the cold weather even when protected in a special case made for

I am a mechanic in Michigan and the cold weather really takes its toll on batteries

This longevity of cold weather frequently results in damaged and drained vehicle batteries in our area.

If I haven't started the truck for two weeks in nice weather I only need to use one of them

because jump starting a diesel in cold weather is next to impossible using jumper cables, a conventional jump box etc

Works good, started a tractor with a dead battery in cold weather, I was skeptical when purchasing, that something so small can pack that much power for

I have a gb40 that’s worked as

Already usd it to jump start my daughters car after the battery was fully drained as she left the lights on overnight

Slow as can be to charge, does not actually come with a charger, that's extra

After the initial charging when it arrived which took longer than I expected it works as it should, getting a few more (the GB40) for the other vehicles just to have them.

This thing...battery was below 6 volts, less than half, and cranked up as strong as if it were a brand new battery

n’t be sad.

Jump box works great fingers crossed it does t fail like many of us had

Thank youJo H