Hints on handling batteries
IU6, IU8, IU12
44
The capacity required for a cooler can be calculated as follows:
You can use this method to determine the entire capacity of all
electrical consumers in the vehicle. You will find the power specifi-
cations in Watts on type plates, lamp sockets, etc.
Multiply the resulting Ah value by a safety factor of 1.5, and the
result is the capacity that the battery requires. If your vehicle
electrics are not supplied with enough power, you can use an addi-
tional supply battery, e.g. in caravans, boats, etc..
12.3
Charging the batteries properly
If you are using the vehicle for recreational or sports purposes, you
should observe the following recommendations:
z
Always begin your journey with a fully-charged battery.
z
Recharge the battery using the installed on-board charger at
every chance during your trip.
z
Once the journey is over, charge the battery for more than
twelve hours using the on-board charger, as the battery is usu-
ally not fully charged even during longer mobile use (return jour-
ney).
z
If it is not to be used for a long period of time, e.g. during the win-
ter break, the battery must also be charged fully for more than
twelve hours. Disconnect the positive terminal afterwards.
I
Note
Bad chargers are the main cause for insufficient power supply to
the on-board electronics. Proper on-board chargers work accord-
ing to the IU0U specifications. These devices are available from
your specialist dealer (www.waeco.com).
Power / voltage
75 W / 12 V
= amperage
= 6.25 A
x average use per day in hours (h)
8 h
= required capacity in amp hours
= 50 Ah
_IU6_IU8_IU12_BA_10s.book Seite 44 Mittwoch, 16. Januar 2008 2:06 14
Summary of Contents for PerfectCharge IU12
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