Comment: Startmonkey 400

Well...lithium battery technology is a wonderfull thing.....And I have seen people start 4 cylinder petrol cars from a 20Ah sealed lead acid battery.........but "Ya cana change the laws of physics ,Jim"


Consider that an N70 lead acid, typical of what is in most diesel 4wds and small diesel trucks has a cold cranking capacity of arround 600 to 800 amps.

Probably has a room temperature short circuit current well above 1000 amps when new.

Even if you have a fully chaged N70 battery in the car giving the jump start.....soo often that just is not enough.....you have to hook up and run the engine at increased revs, to put some sort of change into the dead battery before it ceases to be a mill stone.

these things are a joke...dead set.

cheers

Hi Adrian,

We have posed your question to the manufacturers of the device (Powertraveller) and have received the following response from a member of their Tech Support Team:

"I have used the 400 a few times personally. Once on a 3 litre diesel van, once on a Land Rover discovery and again on my own 2 litre beetle (that was a real break down)

The best way to check is the CCA on the actual battery the van and range rover were 650 and 700 and my car 400.

It really does out put about 400A but only for a short burst.

When you attach the StartMonkey to the car the power is drawn from the StartMonkey (not the car's battery) to enable the engine to start, then the alternator will charge the cars battery once the car is running.

If the car's battery is very low, it may take a couple of goes, and you will see on the volt meter that the car's battery does take some power in when you try to starting the car with the StartMonkey attached.

If the car battery is totally dead nothing will start it."