Serial/Parallel Linking Of Batteries - Torqeedo Cruise 2.0 R Bedienungsanleitung

We recommend that you achieve the required battery capacity in Wh using as few par-
allel connections as possible with as few big batteries as possible. So, to give yourself a
battery capacity of e.g. 4,800 Wh (at 24 V) it is better to use two 12 V / 200 Ah batteries
rather than several parallel and serial linked batteries (e.g. four 12 V / 100 Ah batteries).
Firstly, this avoids safety risks from battery configurations. And secondly, capacity dif-
ferences between the batteries that already exist at the time of the configuration or that
develop later have a negative effect on the overall battery system (capacity loss, also
called drifting). Thirdly losses on contact points from up to 2-3 % of the battery capacity
may be prevented.

4.5.2 Serial/parallel linking of batteries

To avoid safety risks, capacity losses and contact point losses with serial and parallel
battery configurations, always only combine the same type of batteries (same capacity,
same age, same manufacturer, same state of charge).
• Serial and parallel configured batteries must always have the same
state of charge. That is why you must use only the same type of
batteries in configurations (same capacity, same age, same ma-
nufacturer, same state of charge) and fully charge each battery
separately in your charger before you connect it up. Differences
in the state of charge can lead to extremely high compensatory
currents or overloads on the cables and plugs or the battery itself.
In extreme cases this could even cause fire or injury.
Um bei einer seriellen oder parallelen Verschaltung von Batterien Sicherheitsrisiken,
• When working with or near batteries avoid wearing metal jewelry
Kapazitätsverlust und Kontaktstellenverluste zu vermeiden, ist es erforderlich, stets nur
and laying tools on the batteries as this could result in a short
gleichwertige Batterien miteinander zu kombinieren (gleiche Kapazität, gleiches Alter,
circuit.
gleicher Hersteller, gleicher Ladezustand).
• When connecting batteries ensure the right polarity.
• Only use Torqeedo cable set. When using different cables there is
a risk of wrong dimensioning and local overheating and even fire.
When using other cables consult a specialist.
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