
-37-
according to formula:
К = E
n
/E
av
,
where: E
n
– nominal battery capacity or capacity
less then nominal, appointed in view of deterioration of
batteries.
8.4. Method of maximum
The method of maximum is applied if carrying
out the measured discharge is impossible or inconveni-
ent. It is based on the assumption, that in the group of
testing batteries (for example, intended for connection
in the battery system or already connected in the bat-
tery system) the least worn out battery has known capa-
city (in the elementary case - nominal capacity).
This method is recommended for use with the
worn out batteries.
Connect Qulon-12ns (with K=1) to each battery
of the group and write down the estimated capacity.
Find the maximum estimated capacity for the group
E
max
, then calculate calibration coefficient for your bat-
tery according to formula:
К = E
n
/E
max
,
where: E
n
– nominal battery capacity or capacity
less then nominal, appointed in view of deterioration of
batteries.
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8.5. Method of battery history
The method of battery history is used during
scheduled service of individual battery, if carrying out
the measured discharge is impossible or inconvenient.
The method is based on the assumption, that in the be-
ginning of the battery service life (right after the first
connection of Qulon-12ns to the battery), the capacity of
the battery is accepted known (for example, it is con-
sidered that it is equal to nominal capacity). During fur-
ther service battery capacity estimated by Qulon-12ns is
compared to this value.
Connect Qulon-12ns (with K=1) to the battery
and write down the estimated capacity E
m1
, then calcu-
late calibration coefficient for your battery according to
formula:
К = E
n
/E
1
,
where: E
n
– nominal battery capacity or capacity less
then nominal, appointed in view of deterioration of the
battery.