User Manual of Solar Intelligent Energy System (SIES)
TBB Power Confidential Page
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Figure 16 Series Connection
4.6.2.2 Parallel Connection
When all positive terminals of a group of batteries are connected in together, and respectively,
separately, all negative terminals of this group of batteries are connected in together, we call that
they are connected in parallel. In a parallel configuration, the battery bank has the same voltage as
a single battery, but its amp-hour rating is equal to the sum of all individual batteries.
Figure 17 Parallel Connection
The length of connection cables between batteries should be same, in order to
assure the resistance is equal in each battery.
For example, the lengths of the positive and negative connection cables from BAT I
to BAT II must be the same. And the negative cable should be pulled out from the
negative terminal of BAT II, and the positive cable should be pulled out from the BAT
I (
Figure 17
).
