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7. Recharging Battery Pack
The 7.2V rechargeable battery pack included in delivery for the vehicle is empty on delivery and has to
be recharged.
Please note:
Before the rechargeable battery pack delivery its maximum power, several complete dis-
charge and charge cycles are necessary.
Always drive the rechargeable battery pack empty, since recharging a ”half-full” recharge-
able battery pack can cause a so called memory effect. That means that the rechargeable
battery pack loses its capacity, it no longer releases all of its saved energy, drive time is
decreased.
If you are using several rechargeable battery packs or rechargeable batteries, purchas-
ing a high-quality charger may be worthwhile. They are normally also suitable for fast
charging of rechargeable batteries.
For this purpose, proceed as follows:
• If the rechargeable battery pack was taken directly from the vehicle and is still hot, wait until the
rechargeable battery pack has cooled down before you recharge (min. of 5-10 minutes).
• Connect the plug-in charger with a proper mains socket (230V~/50Hz).
• Connect the rechargeable battery pack with correct polarity with the plug-in charger. Normally the
special design of the two plugs avoids the incorrect connection of the rechargeable battery.
Do not use any force when plugging it in!
For reasons of safety place the rechargeable battery pack on a non-flammable surface,
eg. a tiled floor. Keep the rechargeable battery pack away from flammable objects.
Never leave the rechargeable battery pack unattended.
The rechargeable battery pack gets warm during charging. This is normal.
• The charging process of a completely empty rechargeable battery takes approx. 5-6 hours (as a
matter of principle a rechargeable battery has to be ”charged up” more than it can release later
on).
• Separate the rechargeable battery pack from the plug-in charger after charging, pull the plug-in
charger from the mains socket.
• Before using the rechargeable battery pack in the vehicle, wait until it has completely cooled down
(min. 5-10 minutes).