my problem ,if anyone has come across the same , refers to a 50 yr
bantam motorcycle i own,

the bike is a BSA bantam d3 with the later d10/d14 wipac altenator,
and has been modded to 12v ,,this mod is a common on UK old bikes as
most of you will know,,,and concists of linking 2 sets of coils
together ,,and then running thru a rectifier and a zenner
diode ,,,here is a link with explaiation for anyone not familiar
http://dspace.dial.pipex.com/graham_...12v_conv.shtml ,,every thing went to plan and 2.5 ah
battery was put in the toolbox ,,,i keep blowing bulbs ,,,so
suspecting a faulty zenner ,,i replaced it by an expensive electronic
module ,,,,still the same probs.

when i get a reading from the battery it is 16v upward ,,yet when i
change to another battery in it drops to 13 +- ,,,when i put the
(suspect) battery on a "streetwize" 300mh charger it hapily rises to
16v ,,,,yet the second battery regulates itself at 13-14v??

i have charged (suspect) battery on a larger charger ,,in the
past ,,,,have i damaged it ???? ,,,

anyone with any thoughts ,,,



PS it is my 50th birthday today and a "young" policeman on a BMW bike
stopped me ,,to look at the bike ,,,,he called me "sonny" ,,,bet my
kids are older than him!


thanks

alan