-9-
you should not be surprised if the same battery will deliver
only 10 A*h during discharge under minus 20
o
C.
Factory calibration of Qulon-12m is conducted for use
under room temperature (about 20
o
C). Therefore, in order to
get most precise results of battery capacity estimation, keep
batteries under room temperature before test for the time
needed for temperature equalising.
3.1.4. New batteries
The majority of lead acid batteries increase capacity
after their first discharge-charge cycles. That is why while
testing absolutely new batteries (the batteries that never were
charged or discharged) you could get estimated capacity less
then rated (may be by 10 or 15 %). This is usual – the battery
will increase capacity after several cycles (or several months
under float charge).
3.2. Battery capacity estimation with Qu-
lon-12m
3.2.1. Device placement
Qulon-12m can work in any position horizontal or ver-
tical.
To avoid device errors do not use it near the sources
of large electromagnetic noise. .