Suaoki Emergency jump starter

If it is the 18000mah model then there is no way it can deliver 650 amps through the jum cable size. THe potential difference available also ensure that cannot happen.

The trouble with jump starters is they go flat because they are batteries too, so unless you have charged in just before the trouble you don't know you are going to have, they will probably not start anything.

Sort of convenient, prehaps but most only assist the start and cannot perform when they are discharged.

Almost daily charge check may see it do the job as intended. Having a dual battery system I have never considered one for the reason of them being unreliable or as you found, discharged when needed.

I have just checked mine, last charge 7 weeks ago. showing today 98%, I dont think that is bad at all. hope this helps. Pete.

I have the G7 charger and after 5 months showed 95%

Started my diesel Prado the other evening when the main battery was dead flat and still showed 95%

Maybe keep a note of charge date and % for a while to see if it’s faulty.

Cheers
Mike

From what has been said above it seems you have a bum unit and thus you have a warranty claim. Charge it fully and check the charge level weekly. There is one report of 95% capacity after an extended time. If the charge level drops too quickly report the loss of charge to your supplier and arrange for a replacement.

Thank you everyone for the replies, I appreciate the input. regards, Michael.

Just checked mine after 6 or more weeks, and showed 100%.
Bob

Hi Michael

When I purchased our unit new back in April, I gave it a full charge and it then just sat in the box.

Before we went away in August, I checked it out and it still showed 100%, but still topped it up to be on the safe side.

Sitting under the back seat when we were up in Nhulunbuy, the chap next to us had a flat battery one morning and asked if I had a set of jumper leads. I said yes, but have something better.

I then get out the G7 and as quick as a flash started the diesel Captiva. The chap could not believed how good a job the small unit did, and he took a picture of it on his phone and was going to buy one when he got back to Darwin. After I tested it after the start, it still showed 100%. According to the stats, they jump start a vehicle over 20 times before they need to be fully charged again.

I told him to look around, as I ended up getting mine for $80, a reduction of $9 and I was very happy with the price, including free delivery.



Cheers





Stephen

Being Lithium, it shouldn't have any self discharge although its management electronics would drain a little bit over a long period.
If it keeps going flat then it likely has issues.
Totally flattening lithiums is generally instant death to the cells.