OPERATION INSTRUCTIONS
AB16EJ Plus Operation Manual 39
© March 2023
7.4 GRADEABILITY
Gradeability refers to the maximum allowable slope an-
gle the machine can achieve on solid ground with suffi-
cient traction, the platform in stowed position and
occupied by only one person. Gradeability will decrease
when the load on the platform increases.
Do not drive the machine on slopes exceeding the
machine’s maximum gradeability.
The gradeability includes uphill/downhill as well as later-
al slope capability. Uphill/downhill gradeability of this
machine:
Downhill: 40%/22 °
Uphill: 30%/17°
Lateral slope limit:
Lateral slope: 25%/14°
7.5 CHARGING THE BATTERY
There are three types of batteries that may be used in
this machine: lead acid battery, maintenance-free lead
acid battery, and lithium battery. The latter two types do
not require maintenance.
The battery level must be checked before each
operation.
When the battery level is less than 20%, the low battery
indicator icon on the turntable and on the platform con-
troller illuminates, the buzzer sounds intermittently, and
the high travel speed will be reduced. Stop the machine
immediately and fully charge the battery.
NOTICE
• The machine is delivered with a battery level less
than 80%, it is recommended that the battery be
fully charged once the machine has been
delivered.
• The charging current must not exceed the maxi-
mum allowable charging current indicated on the
battery.
• The charging voltage must not exceed the maxi-
mum allowable limit voltage indicated on the
battery.
• The battery charging temperature range is -10℃-
45℃. If equipped with a charging heating system,
the charging temperature range is -20℃ to 45℃.
• If the battery is overdischarged for reasons that
the end user is responsible for (e.g. continued use
of the machine with a battery level of less than
15%) or if the battery loses power due to a pro-
longed lack of charging (battery level below 15%,
not charged for more than three days), this may ul-
timately lead to in battery capacity loss and/or fail-
ure. Such cases are not covered by the warranty.
• It is not recommended to use lead-acid batteries in
temperatures below 0°C as this will cause the bat-
tery's performance to decline rapidly, affecting the
machine's endurance.
Charging lead-acid (maintenance required) batteries
1. Check the battery level.
• Check the battery level on the display of the
ground controls. When the battery level is ≤20%,
the low battery alarm will be triggered, and the
battery requires immediate charging. To avoid
affecting the normal performance of the machine
it is recommended to charge the battery when
the battery level is below 30%.
• As an alternative means of determining the bat-
tery status, open the cover on the battery and
measure the density of the electrolyte. If the den-
sity of the electrolyte is less than 1.13 kg/l the
battery has been over-discharged (discharge
depth exceeds 80%) and must be charged im-
mediately. This should be avoided, as frequently
over-discharging the battery will reduce its serv-
ice life.
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