4.2.2.2 Test method
1) Battery terminals are short-circuited with the batteries in a fully charged condition.
2) Motor terminals are short-circuited; all commands are in ON position, whilst the batteries are fully
charged.
3) The EPAC is operated with the electric motor or drive system locked up so as to fully discharge the
battery or until the system stops.
4) The battery is charged for double the recommended charging period or for 24 hours depending upon
which is the longest period.
4.2.3.7 Mechanical strength
EPAC shall have adequate mechanical strength and be constructed to withstand such rough handling that
may be expected in normal use. Compliance is checked by:
applying impacts to the battery pack mounted on the EPAC by means of the spring hammer as specified
in IEC 60068-2-75. The battery pack is rigidly supported and three impacts are applied to every point of
the enclosure that is likely to be weak with an impact energy of (0,7 ± 0,05) J. After the test the battery
pack shall show no damage that could impair compliance with this European Standard;
detachable battery packs are submitted to free fall at a height of 0,90 meter in three different positions.
After the test the battery pack shall show no damage that could lead to emission of dangerous substances
(gas or liquid) ignition, fire or overheating.