Cold cranking amps

[Bendy toy]

Spot on. You'll spend hours messing about trying to find a fault, worry about it and then the thing won't start leaving you stranded.

Order a Motobatt online today from these good people http://www.wemoto.com/products/battery

All fine, but testing with jump leads takes a few minutes and one way or another will prove if the bike battery is flat or internally shorting out or has lost a cell.
It seems common sense to me to prove where the problem lies before spending money.
A new battery won't do anything for corroded cable crimps or knackered starter brushes.
All can be tested with jump leads in about 15 minutes including finding the ****ing things.