Some more information.
The usual rule of thumb is 14 miles plus to replace one start while running lights only, no grips, nav etc.

More information The alternator should be putting out about 13.7-14.5 volts. More than enough to charge the battery normally. If he left the ignition on for half an hour with the heated grips on it may have knackered the battery or rectifier/regulator as either could have overheated. Try a trickle c...

Following on from Richard mishap while on today run I have made some enquiries regarding the charging of a run down battery It would appear that unlike a car the electrical system on a bike is finely balanced and therefore the alternator does not have a lot of excess charging capacity over what is r...

Thanks for your interest currently there are an indicated 10 going that includes myself and my daughter.

Ride to the motorbike show.
Friday 14th February.
Meet points

Sainbury's Boreham
8.45am

Shell Garage, Brentwood A1023 (A12/M25 junction)
9.15am

The above company who have their showrooms and service department at Great Easton near Dunmow and hold conducted tours on a Saturday morning once a month. They are currently fully booked for 2020 but will be taking booking for 2021 shortly Minimum number of 10 person with a maximum of 20. The tour s...

Have you tried renewing the threads with the next size screw. If you do not have the correct kit perhaps I can help.