Battery in the QL-17 / 1.5 volt ?

[Tim McGraw]

:o I have the 1.5 volt x625 varta battery in my Canon canonet QL-17
will this mees up the meter readings ??
is it better to go with the 1.35 volt battery ?
thanks for your input

[btgc]

Some say 1.5V are OK for negatives. Some use 1.4V hearing aid battery (Zinc-air, that is) which has flatter voltage curve than alkaline cells.