6
Battery pack / control unit
Both the battery pack and the control unit of the max-e are maintenan-
ce-free and rechargeable. Their durability directly depends on the number
of charging/discharging cycles
.
6.1
General information
If you regularly charge the batteries and the control unit their durability in-
creases. Electronics integrated in the max-e continuously check the
batteries’charging state thus avoiding a total discharge, if handled appro-
priately
.
F
Avoid a total discharge; recharge the batteries of the max-e after each
partial discharge and after each use
.
F
If the battery pack is totally discharged, it takes a maximum of approxi-
mately 10 hours to recharge it
.
The battery pack as well as the control unit are subject to a so-called self-
discharge. Therefore, you should keep the batteries, whenever possible,
connected to the charger. The automatic battery charger changes from char-
ging mode to retaining the charge whenever the batteries are fully charged
so they cannot be overcharged
.
With new batteries it is possible that it takes several charging/discharging
cycles before their full capacity emerges. This applies to both the battery
pack and the control unit
.
The batteries may be charged in any kind of position. They are considered as
safe as dry cells and admitted to air freight by IATA and DOT
.
If fully charged batteries discharge more quickly than usual they are proba-
bly old. Please have them checked by your local dealer and exchanged if ne-
cessary
.
F
To charge the battery pack and the control unit, please only use the AAT
charger included with the max-e. This automatic battery charger turns it-
self off when the batteries are fully charged thus avoiding an overcharge
.
6.1.1
Charging the battery pack without removing it from the
wheelchair
The battery pack can be left in its bag on the wheelchair when it needs char-
ging. First unplug the power cable from the battery pack and plug in the
charging cable. At the end you plug the charger into the wall outlet
.
F
During the charging process the LED display on the charger shows a
constant yellow light
.
F
Once the charging process is completed, the LED display shows a cons-
tant green light
.
Afterwards you first unplug the charger from the wall outlet and then you
pull the plug from the battery pack
.
24
max
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e