A good battery should crank a typical engine for 15 seconds several times with 2 minutes for starter cool down in between, all other things being equal.
If you get a known good battery one way to check things would be to crank it for 15 to 20 seconds and feel if the starter wires get hot, be careful, they can get really hot it there is a hi resistance problem.
Let us know.
If you get a known good battery one way to check things would be to crank it for 15 to 20 seconds and feel if the starter wires get hot, be careful, they can get really hot it there is a hi resistance problem.
Let us know.
