GRAUPNER ULTRAMAT 14 PLUS Operating Manual page 35

Ni-MH-Delta-Peak (-∆ ∆ ∆ ∆ ∆ Peak) trigger voltage
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
N i M H d e l t a - p e a k -
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
v o l t = 5 m V / c e l l
+
INC
It is possible to adjust the trigger voltage (in mV per cell!) of
the automatic termination circuit for Ni-MH batteries.
However, Ni-MH batteries have a less pronounced voltage
drop than Ni-Cd cells, and a practical range has proved to
-
be 5 ... 25 mV / cell. If the trigger voltage is set higher, there
DEC
is a danger of overcharging the battery; if set lower, there is
a danger of premature termination.
We recommend that you carry out a series of test charges
to establish the ideal trigger value for your batteries. Start
with 5mV / cell.
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