18
WhisperPower
Lithium Plus 12 V 210 Ah 340 Ah
Figure 5. Install a fuse
4.4. Connection wires
Use appropriate wire for the connection wires to ensure no overheating or unnecessary
losses occur. Use appropriate fuses matching the wires and load.
WhisperPower recommends to use at least 95 mm
2
conductors for short lengths and higher rating
for longer distances.
Caution
!
Smaller diameter wires can cause overheating or necessary losses and shall be
avoided.
4.5. Installing the mandatory Battery Disconnect device
Warning! Always connect the relay between the + or - terminal of the battery and
the load.
Warning
!
Never use the Lithium battery without a properly installed Battery Disconnect
device (relay or latching relay).
An external Battery Disconnect device must be installed between the + or - terminal of the
Lithium battery and the load. The protection of the Lithium battery is possible by one of
the following ways:
1. Connect a bi-stable relay to the Lithium battery’s Con1 output.
2. Connect a normal relay to the Lithium battery’s Con2 (I/O connection 7) output.
3. By using the WP WIB (Battery Interface Box).
4. By using the WP BCI-C1 (Battery Communication Interface) and a normal relay.
4.5.1. Connecting a bi-stable relay to the Lithium battery
1.
When using a bi-stable relay connect it to Con1 output as displayed in Figure 6. The Con1
output controls both the ON coil and the OFF coil of the bi-stable relay. The output of Con1
can be found in Table 9.
