Royal enfield meteor 350cc battery tests.

Some tests that might help those suffering battery problems.
An update on my investigation into a possible flat battery. After leaving it on charge from 1pm to 7pm yesterday, the bike was parked in my garage, unheated, temperature around 2c not on my charger. This morning I did the following test:-
Voltage with ignition on was 13 3 volts.
Voltage with ignition on about 10 seconds, then starting engine. As you see the engine started easily. To me, my battery appears healthy.