HDV R 14 1.1
Due to constant technological advancement, the manufacturer may modify the content of this manual without prior notice.
27
Nickel Metal Hydride (NiMH)
36 Ideal battery charging conditions
Admitted room temperature from 10°C (50°F) to 35°C (95°F)(ideal 20°C (68°F) )
Battery temperature at charge start 20°C (68°F).
Conditions other than those described above may influence charging as well as the
number of possible charges with acceptable yield.
37 Ideal battery depletion conditions
We recommend using batteries at a room temperature between 5°C (41°F) and
35°C(95°F).
To avoid short term deterioration and potential cell polarity inversion, the battery must not,
in any case, be fully depleted. The automatic cut off device that prevents full battery
depletion was installed for this reason (see specific paragraph).
During HDV use, it is best not to constantly drive at maximum speed but to use the rpm
regulator, suspending frequent starts, making brief pauses, to give the battery time to
better conduct the chemical reaction required to generate power, avoiding abrupt cell
heating.
37.1
Important note on battery depletion!
After HDV use, always remember to cut off motor power using the switch.
This is because the HDV electronic control, even if the motor is not running, consumes a
small amount of energy which, in the long term, depletes the battery. The cut off device
prevents the battery from overheating, but if, for any reason, it malfunctions, the battery
would die and the polarity of some cells may invert.
38 “CUT OFF” battery protection system, operating
principle and instructions for use
The electronic battery protection system from total accidental depletion is located inside
the battery and connected in sequence between the battery and HDV engine.
Its purpose is to prevent excessive cell depletion that could lead to the polarity inversion of
one or more cells, with consequent potential battery destruction and possible damages,
even serious, to property and/or people.
When accumulators deplete, voltage lowers until it reaches a limit value. When this value
is reached, cut off prevents the battery from further depleting by interrupting power
distribution.
When the cut off is triggered, the battery no longer outputs voltage to the connector.